Systemic resistance signaling by Piriformospora
|
|
- Lee Heath
- 7 years ago
- Views:
Transcription
1 Plant and Cell Physiology Advance Access published October 7, 2008 Systemic resistance signaling by Piriformospora Karl-Heinz Kogel Institute of Phytopathology and Applied Zoology, Justus Liebig University Heinrich-Buff-Ring 26-32, D Giessen Germany Telephone: Fax: Subject area: Environmental and stress responses Number of figures: 2 black and white figures 1 color figure The Author Published by Oxford University Press on behalf of Japanese Society of Plant Physiologists. All rights reserved. For Permissions, please journals.permissions@oxfordjournals.org 1
2 Systemic resistance in Arabidopsis conferred by the mycorrhiza fungus Piriformospora indica requires jasmonic acid signaling and the cytoplasmic function of NPR1 Elke Stein 1, Alexandra Molitor 1, Karl-Heinz Kogel and Frank Waller Institute of Phytopathology and Applied Zoology, Research Centre for BioSystems, Land Use and Nutrition, Justus Liebig University, Heinrich-Buff-Ring 26-32, Giessen, Germany 1 These two authors contributed equally to this work. 2
3 Abstract We analyzed requirement of specific defense pathways for powdery mildew (Golovinomyces orontii) resistance induced by the basidiomycete Piriformospora indica in Arabidopsis. P. indica root colonization reduced G. orontii conidia in wild type (Col-0), nonexpressor of PR1-3 (npr1-3) and NahG plants, but not in the npr1-1 null mutant. Therefore, cytoplasmic but not nuclear localization of NPR1 is required for P. indica-induced resistance. Two jasmonate signaling mutants were nonresponsive to P. indica, and jasmonic acid-responsive vegetative storage protein expression was primed and thus elevated in response to powdery mildew, suggesting that P. indica confers resistance reminiscent of induced systemic resistance (ISR). Keywords Systemic disease resistance Piriformospora indica Powdery mildew NPR1 Jasmonic Acid Arabidopsis 3
4 The root endophytic basidiomycete Piriformospora indica belongs to the recently defined order Sebacinales (Weiss et al., 2004). Species of this order form a novel type of mutualistic mycorrhizal symbiosis with a broad spectrum of host plants, such as barley, maize, Arabidopsis, tomato and tobacco (Varma et al. 1999, Shahollari et al. 2005, Deshmukh et al. 2006). In barley, the fungus induces resistance to root diseases and to the powdery mildew disease caused by Blumeria graminis f. sp. hordei (Waller et al. 2005). Plant colonization of P. indica is restricted to the root cortex, suggesting that resistance to leaf pathogens conferred by P. indica requires systemic signals. In Arabidopsis thaliana two mechanisms of systemic disease resistance are well-studied: Systemic acquired resistance (SAR) induced by necrotizing pathogens and a range of synthetic chemicals, and induced systemic resistance (ISR), induced primarily by non-pathogenic rhizobacteria (Pieterse et al. 1996, Ryals et al. 1996, Kogel and Langen 2005). We used Arabidopsis mutants to investigate whether these defense pathways are involved in P. indica-mediated resistance to powdery mildew caused by Golovinomyces orontii. Microscopic inspection of roots inoculated with P. indica detected hyphae on the root surface, intercellularly aligned to root cell walls, and albeit less frequently, intracellularly (Fig. 1A). Hyphae were confined mostly to the rhizodermis, and newly formed chlamydospores could be observed from dpi (Fig. 1B) on the root surface and inside rhizodermal cells (Fig. 1C, D). Interestingly, intracellular hyphal growth was not associated with increased autofluorescence of adjacent host cell walls under excitation light (365 nm) indicating that, similar to barley (Deshmukh and Kogel 2007), the fungus does not induce strong defense reactions in Arabidopsis roots. To assess the influence of P. indica on plant morphology, root and shoot growth was analyzed. By 14 dpi, main root length of P. indica colonized plants was reduced to 86.5% (+/-2.6 SD) of non-colonized plants. Number of lateral roots was 80.5% (+/-12.6 SD), average length of 4
5 lateral roots was 107.6% (+/-12.1 SD), and total root length was 84.4% (+/- 6.1 SD). However, only main root length was affected significantly (Students t-test p<0.05). In contrast to barley, P. indica colonized Arabidopsis did not show visible differences in shoot development, or an increase in shoot weight in experiments reported here. However, Arabidopsis biomass is increased by P. indica using specific culture conditions (Shahollari et al. 2005), which could be reproduced in several laboratories, including ours. To test if P. indica is capable to induce resistance in Arabidopsis to a leaf pathogen, we compared development of the powdery mildew fungus G. orontii on leaves of both wild type plants and Arabidopsis mutants compromised in JA and SA signaling. We found a strong systemic resistance response mediated by P. indica on Arabidopsis (Col-0): The number of conidiophores formed per mycelium was reduced at 5 dpi (compare Fig.1 E and F). The degree of resistance was quantified by determining the amount of G. orontii conidia per mg leaf fresh weight: By 10 dpi, the number of conidia in P. indica-colonized plants was only 47% of those recorded for non-colonized wild type plants (Fig. 2). Upon P. indica colonization, NahG plants (which are unable to accumulate SA; Gaffney et al. 1993) and the mutant nonexpressor of PR1 3 (npr1-3; Cao et al. 1994), showed reduced amounts of powdery mildew conidia of 46 and 45%, indicating that the SA-dependent pathway and nuclear localization of NPR1 abolished in npr1-3, are not required for P. indica-mediated resistance (Fig. 2). In contrast, the mutants jasmonate resistant 1-1 (jar1-1), jasmonate insensitive 1 (jin1), and npr1-1 were fully compromised in P. indica-mediated powdery mildew resistance (Fig. 2), indicating that the systemic resistance response was independent of salicylate signaling, but required an operative jasmonate defense pathway. For jar1-1, a reduced sensitivity to JA and MeJA which results in several defective JA-mediated responses, including ISR, was shown (Staswick et al. 1992, 1998, Pieterse et al. 1998). In addition, our experiments show the requirement of JIN1 (AtMYC2). This transcriptional regulator activates a subset of JA-regulated genes, specifically wound-induced genes, while other JA-regulated 5
6 genes are repressed (Lorenzo et al. 2004). Recently, requirement of AtMYC2 for ISR mediated by Pseudomonas fluorescens WCS417r, which results in priming of JA-regulated genes, was shown (Pozo et al. 2008). We also checked the extent of root colonization in different defense pathway mutants by determining P. indica DNA relative to plant DNA using Q-PCR. In NahG, npr1-1 and npr1-3 plants, we found a significant (Students t-test p<0.05) higher relative amount of fungal DNA (53, 55 and 35% increase, respectively, compared to Col-0). In contrast, relative amounts of fungal DNA were not significantly different in jin-1 and jar1-1 (43% and 0% increase). Despite these quantitative differences, a microscopic inspection revealed no qualitative differences in the tested genotypes. Enhanced colonization of npr1-1, npr1-3 and NahG plants could be explained by a defective SA defense pathway that restricts fungal development in wild type plants. On the contrary, ethylene (ET) signaling was required for P. indica colonization of the roots, as ethylene resistant 1-1 (etr1-1) and ethylene insensitive 2-1 (ein2-1) (Bleecker et al.1988, Guzman and Ecker 1990) were significantly less colonized. This finding made it impossible to experimentally determine the role of ET signaling for P. indicainduced systemic resistance. It was previously shown that ET is required for some, but not all bacterial strains inducing ISR (Iavicoli et al. 2003). To further clarify induction of signaling pathways, we analyzed expression of SA, JA and ETresponsive genes in leaves 14 days after root inoculation with P. indica. JA-responsive vegetative storage protein (VSP), plant defensin 1.2 (PDF1.2), and lipoxygenase 2 (LOX2) mrna levels were slightly, but not significantly, lower in P. indica colonized plants, whereas expression of SA-responsive pathogenesis-related 1 (PR1) and pathogenesis-related 5 (PR5), and ET-responsive ethylene response factor 1 (ERF1) were unaffected (Figure 3). Upon inoculation of leaves with G. orontii, transcripts of PR1 and PR5 were induced at 3 dpi, and, to a much higher degree at 6 dpi. ERF1 and PDF1.2 were induced by G. orontii at 6 dpi. In contrast to the other genes, a significant 8-fold higher expression of VSP was detected 3 days 6
7 after powdery mildew challenge in P. indica-colonized as compared with non-colonized plants (Fig. 3). This result is consistent with the observed loss of P. indica-mediated resistance in jin1, which is defective in JA-induced VSP expression (Berger et al. 1996). Enhanced VSP expression thus supports a role of JA in a primed response associated with powdery mildew resistance induced by P. indica. In the absence of a pathogen challenge, in contrast, mrna levels of SA, JA, and ET responsive genes were indistinguishable between P. indica colonized and non-colonized plants (Figure 3). This data is consistent with the notion that ISR is accompanied by weak systemic up- or down-regulation of transcripts without challenge, while a subset of JA-regulated defense genes, such as VSP, are stronger expressed upon pathogen challenge (Van Wees et al. 1999, Cartieaux et al. 2003, Verhagen et al. 2004). An induced ISR mechanism is also in accordance with the P. indica response of the two NPR1 mutants: npr1-3 is lacking a functional nuclear localization signal and as the npr1-3 mutant is not impaired in P. indica-mediated resistance, a nuclear localization of NPR1 is not required. However, npr1-3 has been shown to retain a cytosolic function regulating expression of some JA-dependent genes (Spoel et al. 2003), and we observed that P. indica-induced priming of VSP at 3 dpi is present in npr1-3. This indicates that JA-mediated priming responses induced by P. indica are still intact in the npr1-3 mutant. Consistently, the null mutant npr1-1 is impaired in cytosolic NPR1 function, in ISR, and in P. indica-mediated resistance to G. orontii. Analysis of gene expression in leaves of P. indica-colonized barley showed similar to Arabidopsis results presented here and to ISR no induction of JA or SA marker genes in the absence of a pathogen challenge (Waller et al. 2005, 2008). Recent results indicated a P. indica-dependent priming of NPR1-regulated genes in barley (Molitor et al., unpublished), suggesting that the fungus triggers common signaling pathways in mono- and dicotyledonous plants (Kogel and Langen 2005). 7
8 In conclusion, we suggest that P. indica-induced resistance requires jasmonate signaling, and is associated with priming of JA-regulated defense genes after powdery mildew challenge while it is independent of salicylate-based mechanisms. Furthermore, our results indicate that the fungus requires only cytosolic but not nuclear localization of NPR1 to induce systemic resistance. The P. indica-arabidopsis interaction has therefore the potential to become a model system for mechanistic investigations of induced resistance and plant-microbe symbiosis. Materials and Methods Arabidopsis thaliana seeds were incubated at 4 C for 48 h. After 14 days growth on agar plates, roots were either mock-inoculated or inoculated with ml -1 P. indica chlamydospores and plants were transferred to pots with sand/potting soil. P. indica was propagated as described (Waller et al. 2005). Golovinomyces orontii (syn. Erysiphe cichoracearum USC1) inoculum was spray-inoculated at a density of 4-6 conidia per mm 2. Microscopy was performed as described in Waller et al. (2005) and Deshmukh et al. (2006). Quantitative RT-PCR conditions, oligonucleotide primers and further methodological details are described in the Online Supplementary Material. Acknowledgements We are grateful to Yves Marco for providing seeds and Ralph Panstruga, MPI Köln, for providing Golovinomyces orontii. We thank Magali Bourdeau (Université de Nice Sophia Antipolis) for help in preparing microscopic images. Support from the Deutsche Forschungsgemeinschaft DFG (FOR666) is gratefully acknowledged. 8
9 References Berger, S., Bell, E. and Mullet, J.E. (1996) Two Methyl Jasmonate-Insensitive Mutants Show Altered Expression of AtVsp in Response to Methyl Jasmonate and Wounding. Plant Physiol. 111: Bleecker, A. B., Estelle, M. A., Somerville, C. and Kende, H. (1988) Insensitivity to ethylene conferred by a dominant mutation in Arabidopsis thaliana. Science 241: Cao, H., Bowling., S.A., Gordon, A.S. and Dong, X. (1994) Characterization of an Arabidopsis mutant that is nonresponsive to inducers of systemic acquired resistance. Plant Cell 6: Cartieaux, F., Thibaud, M.C., Zimmerli, L., Lessard, P., Sarrobert, C., David, P., Gerbaud, A., Robaglia, C., Somerville, S. and Nussaume, L. (2003) Transcriptome analysis of Arabidopsis colonized by a plant-growth promoting rhizobacterium reveals a general effect on disease resistance. Plant J. 36: Deshmukh, S.D., Hückelhoven, R., Schäfer, P., Imani, J., Sharma, M., Weiss, M., Waller, F. and Kogel, K.-H. (2006) The root endophytic fungus Piriformospora indica requires host cell death for proliferation during mutualistic symbiosis with barley. Proc. Natl. Acad. Sci. USA 103: Deshmukh, S.D. and Kogel, K.-H. (2007) Piriformospora indica protects barley from root rot caused by Fusarium graminearum. J. Plant Dis. Protect. 114: Gaffney, T., Friedrich, L., Vernooij, B., Negretto, D., Nye, G., Uknes, S., Ward, E. and Ryals, J. (1993) Requirement for salicylic acid for the induction of systemic acquired resistance. Science 261: Guzman, P. and Ecker, J.R. (1990) Exploiting the triple response of Arabídopsís to identify ethylene-related mutants. Plant Cell 2:
10 Iavicoli, A., Boutet, E., Buchala, A. and Metraux, J. P. (2003) Induced systemic resistance in Arabidopsis thaliana in response to root inoculation with Pseudomonas fluorescens CHA0. Mol. Plant-Microbe Interact. 16: Kogel K.-H. and Langen G. (2005) Induced disease resistance and gene expression in cereals. Cell. Microbiol. 7: Lorenzo, O., Chico, J.M., Sánchez-Serrano, J.J. and Solano, R. (2004) JASMONATE- INSENSITIVE1 encodes a MYC transcription factor essential to discriminate between different jasmonate-regulated defense responses in Arabidopsis. Plant Cell 16: Pieterse C.M.J., van Wees S.C.M., Hoffland E., van Pelt J.A. and van Loon L.C. (1996) Systemic Resistance in Arabidopsis induced by Biocontrol Bacteria is independent of Salicylic Acid Accumulation and Pathogenesis-Related Gene Expression. Plant Cell 8: Pieterse, C.M.J., van Wees, S.C., van Pelt, J.A., Knoester, M., Laan, R., Gerrits, H., Weisbeek, P.J. and van Loon, L.C. (1998) A novel signaling pathway controlling induced systemic resistance in Arabidopsis. Plant Cell 10: Pozo, J.M., Van der Ent, S., Van Loon, L.C. and Pieterse, C.M.J. (2008) Transcription factor MYC2 is involved in priming for enhanced defense during rhizobacteria-induced systemic resistance in Arabidopsis thaliana. New Phytol. doi: /j x Ryals, J.A., Neuenschwander, U.H., Willits, M.G., Molina, A., Steiner, H.-Y. and Hunt, M.D. (1996) Systemic acquired resistance. Plant Cell 11: Shahollari, B., Varma, A. and Oelmüller, R. (2005) Expression of a receptor kinase in Arabidopsis roots is stimulated by the basidiomycete Piriformospora indica and the protein accumulates in Triton X-100 insoluble plasma membrane microdomains. J. Plant Physiol. 162:
11 Spoel, S.H., Koornneef, A., Claessens, S.M., Korzelius, J.P., Van Pelt, J.A., Mueller, M.J., et al. (2003) NPR1 modulates cross-talk between salicylate- and jasmonate-dependent defense pathways through a novel function in the cytosol. Plant Cell 15: Staswick, P.E., Su, W. and Howell, S.H. (1992) Methyl jasmonate inhibition of root growth and induction of leaf protein are decreased in an Arabidopsis thaliana mutant. Proc. Natl. Acad. Sci. USA 89: Staswick, P.E., Yuen, G.Y. and Lehman, C.C. (1998) Jasmonate signaling mutants of Arabidopsis are susceptible to the soil fungus Pythium irregulare. Plant J. 16: Van Wees, S.C.M., Luijendijk, M., Smoorenburg, I., Van Loon, L.C. and Pieterse, C.M.J. (1999) Rhizobacteria-mediated induced systemic resistance (ISR) in Arabidopsis is not associated with a direct effect on expression of known defense-related genes but stimulates the expression of the jasmonate-inducible gene Atvsp upon challenge. Plant Mol. Biol. 41: Varma, A., Verma, S., Sudha, X., Sahay, N., Bütehorn, B. and Franken, P. (1999) Piriformospora indica, a cultivable plant-growth-promoting root endophyte. Appl. Environ. Microbiol. 65: Verhagen, B.W.M., Glazebrook, J., Zhu, T., Chang, H.-S., van Loon, L.C. and Pieterse, C.M. J. (2004) The transcriptome of rhizobacteria-induced systemic resistance in Arabidopsis. Mol. Plant-Microbe Interact. 17: Waller F., Achatz, B., Baltruschat, H., Fodor, J., Becker, K., et al. (2005) The endophytic fungus Piriformospora indica reprograms barley to salt-stress tolerance, disease resistance, and higher yield. Proc. Natl. Acad. Sci. USA 102:
12 Waller, F., Mukherjee, K., Deshmukh, S.D., Achatz, B., Sharma, M., Schäfer, P. and Kogel, K.-H. (2008) Local and systemic modulation of plant responses by Piriformospora indica and related Sebacinales species. J. Plant Physiol. 165: Weiss, M., Selosse, M.-A., Rexer, K.-H., Urban, A. and Oberwinkler, F. (2004) Sebacinales: a hitherto overlooked cosm of heterobasidiomycetes with a broad mycorrhizal potential. Mycol. Res. 108:
13 Figure Legends Figure 1: Colonization of Arabidopsis roots with Piriformospora indica and its effect on the development of the leaf pathogen Golovinomyces orontii Arabidopsis root sections colonized by P. indica: (A) Fungal hyphae stained with WGA-AF 488 in roots 7 days post inoculation (dpi). Intercellular hyphae are closely aligned to rhizodermal cell walls, protruding short hyphal branches are characteristic for intracellular penetration attempts. The image was recorded with a confocal microscope (maximum projection of 12 optical sections). (B, C and D) Chlamydospore formation in Arabidopsis roots. Staining with 0.01% acid fuchsine-lactic acid visualizes chlamydospores 21 dpi. (B) bright-field image. (C) and (D) were obtained with a confocal microscope, representing the same root section in the transmission channel (C), and in the fluorescence channel (D) detecting chlamydospores stained with fuchsine-lactic acid (maximum projection of 30 optical sections). New chlamydospores are formed inside rhizodermal cells, on the root surface (B), and in root hairs (C and D). Bars in A, B, C and D represent 25 µm. (E, F) Development of G. orontii on Arabidopsis leaves of control plants (E) and P. indicacolonized plants (F). Fourteen days after root inoculation with P. indica, leaves were inoculated with conidia of the powdery mildew fungus G. orontii. Five days after challenge inoculation, leaves were cleared with ethanol and fungal structures stained with blue ink. E and F show a fraction of a mycelium derived from successful development of a single conidium. Reduced numbers of rod-shaped conidiophores are visible in P. indica-colonized plants as compared to control plants. Bars in E and F represent 100 µm. 13
14 Figure 2: Genotype-dependent enhanced resistance against powdery mildew after colonization with P. indica Fourteen days after root inoculation with P. indica- or mock-inoculation (control), leaves were inoculated with conidia of the powdery mildew fungus Golovinomyces orontii. Ten days post inoculation, leaves were detached, and amount of conidia per 10 mg of leaf fresh weight determined for at least five individually treated plants. Values are means and were set to 1 for P. indica non-inoculated Col-0 plants to enable comparison of experiments. White columns depict non-inoculated, black columns depict P. indica-inoculated plants of indicated genotypes, with bars indicating standard errors. Similar results were obtained in three independent experiments. Figure 3: Expression of hormone-responsive genes in leaves of Arabidopsis plants colonized with P. indica relative to non-colonized plants 0, 3, and 6 days after powdery mildew challenge The mrna levels of SA-responsive PR1 (A) and PR5 (B), JA-responsive VSP (C), PDF1.2 (D) and LOX2(E), and ET-responsive ERF1 (F) were analyzed in leaves at 0, 3 and 6 dpi by quantitative RT-PCR. Expression levels were calculated relative to the constitutively present ubiquitin 5 mrna. Relative expression values for control plants (white columns) and P. indica inoculated plants (black columns) were calibrated to the control 3 dpi time point set to 100. Values shown represent average values from three independent experiments, with error bars depicting standard errors. For PR1b, no error bars are given at time point 0 dpi, as transcript levels were not detectable in 2 of 3 experiments. 14
15 Fig. 1 15
16 Fig. 2 16
17 17 Fig. 3
Short Communication. Keywords: Arabidopsis Jasmonic Acid NPR1 Piriformospora indica Powdery mildew Systemic disease resistance.
Plant Cell Physiol. 49(11): 1747 1751 (28) doi:1.193/pcp/pcn147, available online at www.pcp.oxfordjournals.org ß The Author 28. Published by Oxford University Press on behalf of Japanese Society of Plant
More informationInduceerbaar weerbaar
Induceerbaar weerbaar Leerbaar Weerbaar Workshop Delft, 18 september 2012 1 Green Biology Utrecht University Institute of Environmental Biology (>100 plant scientists) Molecular Plant Physiology Plant-Microbe
More informationNatural variability in the Arabidopsis response to infection with Erwinia carotovora subsp. carotovora
Isabel Aguilar Josefa M. Alamillo Francisco García-Olmedo Pablo Rodríguez-Palenzuela Natural variability in the Arabidopsis response to infection with Erwinia carotovora subsp. carotovora Abstract The
More informationA fitful fungus from a hot, arid climate increases grain yield in cool-cultivated barley
Abstract Purpose 147 A fitful fungus from a hot, arid climate increases grain yield in cool-cultivated barley by Brian R. Murphy Fiona M. Doohan, Ph.D. 1 Trevor R. Hodkinson Ph.D 2 The fungus Piriformospora
More informationOverexpression of a Rice NPR1 Homolog Leads to Constitutive Activation of Defense Response and Hypersensitivity to Light
MPMI Vol. 18, No. 6, 2005, pp. 511 520. DOI: 10.1094/MPMI-18-0511. 2005 The American Phytopathological Society Overexpression of a Rice NPR1 Homolog Leads to Constitutive Activation of Defense Response
More informationUnité de Biologie Végétale Département de Biologie Université de Fribourg (Suisse)
Unité de Biologie Végétale Département de Biologie Université de Fribourg (Suisse) Analysis of pathogen-induced glutathione S-transferases in Arabidopsis thaliana and a gene related to systemic acquired
More informationGeneral Technical Dossier Laminarin
General Technical Dossier Laminarin The choice to produce better Fruits and vegetables Contents Technical dossier Laminarin 1) Plant natural defense mechanisms. 2) Laminarin: mode of action. 3) Laminarin:
More informationUTILIZATION of PLASMA ACTIVATED WATER in Biotechnology, Pharmacology and Medicine. JSC TECHNOSYSTEM-ECO Moscow, Russia April, 2009
UTILIZATION of PLASMA ACTIVATED WATER in Biotechnology, Pharmacology and Medicine JSC TECHNOSYSTEM-ECO Moscow, Russia April, 2009 METHOD of WATER ACTIVATION with PLASMA of GAS DISCHARGE ANODE VACUUM WATER
More informationThe Need for a PARP in vivo Pharmacodynamic Assay
The Need for a PARP in vivo Pharmacodynamic Assay Jay George, Ph.D., Chief Scientific Officer, Trevigen, Inc., Gaithersburg, MD For further infomation, please contact: William Booth, Ph.D. Tel: +44 (0)1235
More informationCORN PLANT AND SOİL RESPONSE TO MYCOAPPLY SUPERCONCENTRATE MYCORRHIZAL INOCULATION
CORN PLANT AND SOİL RESPONSE TO MYCOAPPLY SUPERCONCENTRATE MYCORRHIZAL INOCULATION Songül Dalcı-Ph.D and Aynur Dilsiz Ankara University and Araştırma Agricultural Institute, Turkey SUMMARY This project
More informationChecking the Effectiveness of Pest Control Measures
Checking the Effectiveness of Pest Control Measures Chris Hayes, PhD (Tampa) SE Technical Sales Manager & Mexico chayes@bioworksinc.com Cell: 585-820-6807 6/15/2015 1 Thanks Cultivate 15 Thanks to YOU,
More informationGenetics Lecture Notes 7.03 2005. Lectures 1 2
Genetics Lecture Notes 7.03 2005 Lectures 1 2 Lecture 1 We will begin this course with the question: What is a gene? This question will take us four lectures to answer because there are actually several
More informationAn Overview of Cells and Cell Research
An Overview of Cells and Cell Research 1 An Overview of Cells and Cell Research Chapter Outline Model Species and Cell types Cell components Tools of Cell Biology Model Species E. Coli: simplest organism
More informationby the PCR-mediated method (Krawchuk and Wahls, 1999). The construction of Ams2-null and conditional ams2-shut-off strains was previously described
Table S1. Fission yeast strains used in this study. Gene disruption was performed by the PCR-mediated method (Krawchuk and Wahls, 1999). The construction of Ams2-null and conditional ams2-shut-off strains
More informationRubisco; easy Purification and Immunochemical Determination
Rubisco; easy Purification and Immunochemical Determination Ulrich Groß Justus-Liebig-Universität Gießen, Institute of Plant Nutrition, Department of Tissue Culture, Südanlage 6, D-35390 Giessen e-mail:
More informationCell Biology Questions and Learning Objectives
Cell Biology Questions and Learning Objectives (with hypothetical learning materials that might populate the objective) The topics and central questions listed here are typical for an introductory undergraduate
More informationCell Viability Assays: Microtitration (MTT) Viability Test Live/Dead Fluorescence Assay. Proliferation Assay: Anti-PCNA Staining
Cell Viability Assays: Microtitration (MTT) Viability Test Live/Dead Fluorescence Assay Proliferation Assay: Anti-PCNA Staining Spring 2008 1 Objectives To determine the viability of cells under different
More informationGENE CLONING AND RECOMBINANT DNA TECHNOLOGY
GENE CLONING AND RECOMBINANT DNA TECHNOLOGY What is recombinant DNA? DNA from 2 different sources (often from 2 different species) are combined together in vitro. Recombinant DNA forms the basis of cloning.
More information"Fingerprinting" Vegetables DNA-based Marker Assisted Selection
"Fingerprinting" Vegetables DNA-based Marker Assisted Selection Faster, Cheaper, More Reliable; These are some of the goals that vegetable breeders at seed companies and public institutions desire for
More informationApplication Note No. 2 / July 2012. Quantitative Assessment of Cell Quality, Viability and Proliferation. System
Application Note No. 2 / July 2012 Quantitative Assessment of Cell Quality, Viability and Proliferation System Quantitative Assessment of Cell Quality, Viability and Proliferation Introduction In vitro
More informationCells are tiny building blocks that make up all living things. Cells are so small that you need a microscope to see them.
FC01 CELLS s are tiny building blocks that make up all living things. s are so small that you need a microscope to see them. ANIMAL CELL PLANT CELL This is the control centre of the cell. It contains chromosomes
More informationGreen Fluorescent Protein (GFP): Genetic Transformation, Synthesis and Purification of the Recombinant Protein
Green Fluorescent Protein (GFP): Genetic Transformation, Synthesis and Purification of the Recombinant Protein INTRODUCTION Green Fluorescent Protein (GFP) is a novel protein produced by the bioluminescent
More informationARABIDOPSIS. A Laboratory Manual DETLEF WEIGEL JANE GLAZEBROOK
ARABIDOPSIS A Laboratory Manual DETLEF WEIGEL Salk Institute, Plant Biology Laboratory La Jolla, California Max Planck Institute for Developmental Biology Tubingen, Germany JANE GLAZEBROOK Torrey Mesa
More informationAre polyphenols the life extending structures in humic substances?
Are polyphenols the life extending structures in humic substances? From: J. Berger & R. Sommer, Max-Planck-Institut für Entwicklungsbiologie, Tübingen Nadine Saul 1, Kerstin Pietsch 1, Ralph Menzel 1,
More informationHow To Understand How Gene Expression Is Regulated
What makes cells different from each other? How do cells respond to information from environment? Regulation of: - Transcription - prokaryotes - eukaryotes - mrna splicing - mrna localisation and translation
More informationRules and Format for Taxonomic Nucleotide Sequence Annotation for Fungi: a proposal
Rules and Format for Taxonomic Nucleotide Sequence Annotation for Fungi: a proposal The need for third-party sequence annotation Taxonomic names attached to nucleotide sequences occasionally need to be
More informationSteatosis Colorimetric Assay Kit
Steatosis Colorimetric Assay Kit Item No. 10012643 www.caymanchem.com Customer Service 800.364.9897 Technical Support 888.526.5351 1180 E. Ellsworth Rd Ann Arbor, MI USA TABLE OF CONTENTS GENERAL INFORMATION
More informationTransfection reagent for visualizing lipofection with DNA. For ordering information, MSDS, publications and application notes see www.biontex.
METAFECTENE FluoR Transfection reagent for visualizing lipofection with DNA For ordering information, MSDS, publications and application notes see www.biontex.com Description Cat. No. Size METAFECTENE
More informationComparison of Trypan Blue and Fluorescence-Based Viability Detection Methods Via Morphological Observation
Comparison of Trypan Blue and Fluorescence-Based Viability Detection Methods Via Morphological Observation Nexcelom Bioscience LLC. 360 Merrimack Street, Building 9 Lawrence, MA 01843 T: 978.327.5340 F:
More informationEffects of Antibiotics on Bacterial Growth and Protein Synthesis: Student Laboratory Manual
Effects of Antibiotics on Bacterial Growth and Protein Synthesis: Student Laboratory Manual I. Purpose...1 II. Introduction...1 III. Inhibition of Bacterial Growth Protocol...2 IV. Inhibition of in vitro
More informationSUPPLEMENTARY FIGURES
SUPPLEMENTARY FIGURES Fig. S1: Effect of ISO- and TAC-treatments on the biosynthesis of FAS-II elongation products in M. tb H37Ra. LC/MS chromatograms showing a decrease in products with elemental compositions
More informationKoch s s Postulates. Lesson plan submitted for EDG6905 Communicating Science: Topics in Emerging Pathogens. Sue Latshaw and Asha Brunings
Koch s s Postulates Lesson plan submitted for EDG6905 Communicating Science: Topics in Emerging Pathogens Sue Latshaw and Asha Brunings (Heinrich Hermann) Robert Koch 1843-1910 1910 German physician Isolated
More informationActions of Hormones on Target Cells Page 1. Actions of Hormones on Target Cells Page 2. Goals/ What You Need to Know Goals What You Need to Know
Actions of Hormones on Target Cells Graphics are used with permission of: Pearson Education Inc., publishing as Benjamin Cummings (http://www.aw-bc.com) Page 1. Actions of Hormones on Target Cells Hormones
More informationDoctor of Philosophy (in progress), Plant Pathology, Michigan State University, 2006-present
Timothy D. Miles Michigan State University Department of Plant Pathology 105 Center for Integrated Plant Systems East Lansing, MI 48824 Professional Preparation: Doctor of Philosophy (in progress), Plant
More informationThe Awesome Power of Yeast Genetics: Spontaneous and Induced Mutagenesis and Complementation Analysis using Saccharomyces cerevisiae.
The Awesome Power of Yeast Genetics: Spontaneous and Induced Mutagenesis and Complementation Analysis using Saccharomyces cerevisiae. Mutations occur as a consequence of normal cellular physiology and
More informationKermodul : Angeborene Immunität Innate Immunity. Uwe Sonnewald Email usonne@biologie.uni-erlangen.de
BC Kermodul : Angeborene Immunität Innate Immunity Pathogens Invasion strategies Pathogen Host Interactions Basal Defence Uwe Sonnewald Email usonne@biologie.uni-erlangen.de 1 Pathogens and diseases Viruses
More informationUbiquitin-conjugated degradation of Golden 2-Like transcription factor is mediated by CUL4-DDB1-based E3 ligase complex in tomato
New Phytologist Supporting Information Ubiquitin-conjugated degradation of Golden 2-Like transcription factor is mediated by CUL4-DDB1-based E3 ligase complex in tomato Xiaofeng Tang, Min Miao, Xiangli
More informationHow To Identify A Novel Pathway Leading To Myocardial Infarction
Press Release Embargo: 10 November 2013 at 1800 London time / 1300 US Eastern Time Genetic research identifies novel pathway leading to myocardial infarction Starting with a severely affected family, a
More informationWhat is Cancer? Cancer is a genetic disease: Cancer typically involves a change in gene expression/function:
Cancer is a genetic disease: Inherited cancer Sporadic cancer What is Cancer? Cancer typically involves a change in gene expression/function: Qualitative change Quantitative change Any cancer causing genetic
More informationOBJECTIVES PROCEDURE. Lab 2- Bio 160. Name:
Lab 2- Bio 160 Name: Prokaryotic and Eukaryotic Cells OBJECTIVES To explore cell structure and morphology in prokaryotes and eukaryotes. To gain more experience using the microscope. To obtain a better
More informationMedical Microbiology Culture Media :
Lecture 3 Dr. Ismail I. Daood Medical Microbiology Culture Media : Culture media are used for recognition and identification (diagnosis) of microorganisms. The media are contained in plates (Petri dishes),
More informationwww.biochemj.org/bj/330/0581/bj3300581.htm
Ribosomes as Antibiotic Targets www.biochemj.org/bj/330/0581/bj3300581.htm Ware, Bioscience in the 21 st Century, 2009 PERSPECTIVE Widespread use of antibiotics after WWII improved human health globally
More informationPlant Growth & Development. Growth Stages. Differences in the Developmental Mechanisms of Plants and Animals. Development
Plant Growth & Development Plant body is unable to move. To survive and grow, plants must be able to alter its growth, development and physiology. Plants are able to produce complex, yet variable forms
More informationModeling and Simulation of Gene Regulatory Networks
Modeling and Simulation of Gene Regulatory Networks Hidde de Jong INRIA Grenoble - Rhône-Alpes Hidde.de-Jong@inria.fr http://ibis.inrialpes.fr INRIA Grenoble - Rhône-Alpes and IBIS IBIS: systems biology
More informationTransformation of the bacterium E. coli. using a gene for Green Fluorescent Protein
Transformation of the bacterium E. coli using a gene for Green Fluorescent Protein Background In molecular biology, transformation refers to a form of genetic exchange in which the genetic material carried
More informationMorphology and Growth Kinetics of Hyphae of Differentiated and Undifferentiated Mycelia of Neurospora crassa
362 Journal of General Microbiology (I975), 91,362-368 Printed in Great Britain Morphology and Growth Kinetics of Hyphae of Differentiated and Undifferentiated Mycelia of Neurospora crassa By G. C. STEELE
More informationChapter 39: Plant Responses to Internal and External Signals
Name Period Concept 39.1 Signal transduction pathways link signal reception to response This concept brings together the general ideas on cell communication from Chapter 11 with specific examples of signal
More informationMEASURING THE EFFICACY OF MOLD REMEDIATION ON CONTAMINATED DUCTWORK
MEASURING THE EFFICACY OF MOLD REMEDIATION ON CONTAMINATED DUCTWORK JD Krause 1,2* and YY Hammad 1 1 College of Public Health, University of South Florida, Tampa, FL, USA 2 Indoor Air Solutions, Tampa,
More informationProkaryotic and Eukaryotic Cells
Lab 2- Bio 201 Prokaryotic and Eukaryotic Cells Name: OBJECTIVES To explore cell structure and morphology in prokaryotes and eukaryotes. To gain more experience using the microscope, and in particular,
More informationBacterial Transformation with Green Fluorescent Protein. Table of Contents Fall 2012
Bacterial Transformation with Green Fluorescent Protein pglo Version Table of Contents Bacterial Transformation Introduction..1 Laboratory Exercise...3 Important Laboratory Practices 3 Protocol...... 4
More informationwww.mpiz-koeln.mpg.de Abt. Entwicklungsbiologie de Pflanzen
WEB ADDRESS: www.mpiz-koeln.mpg.de Forschung Abt. Entwicklungsbiologie de Pflanzen George Coupland How is the transition from vegetative growth to flowering controlled? - How is it regulated by environmental
More information岑 祥 股 份 有 限 公 司 技 術 專 員 費 軫 尹 20100803
技 術 專 員 費 軫 尹 20100803 Overview of presentation Basic Biology of RNA interference Application of sirna for gene function? How to study mirna? How to deliver sirna and mirna? New prospects on RNAi research
More informationNitrogen Fixing Bacteria in Agriculture Now a Real Option Guy Webb B.Sc. REM Agricultural Consultant
Nitrogen Fixing Bacteria in Agriculture Now a Real Option Guy Webb B.Sc. REM Agricultural Consultant The Pursuit of Protein and Profit All agricultural enterprises, in essence, are based on the pursuit
More informationBiological control of walnut blight: screening of antagonistic bacteria for Xanthomonas arboricola pv. juglandis and evaluation of their efficacy
Biological control of walnut blight: screening of antagonistic bacteria for Xanthomonas arboricola pv. juglandis and evaluation of their efficacy Hatice OZAKTAN Mine YAVAS Ahmet AKKÖPRÜ Emek ASLAN Adem
More informationNitrogen Fixing Corn and 199 Other Crops
Nitrogen Fixing Corn and 199 Other Crops Dr David Dent Founder/Technical Director Azotic Technologies Ltd 1 In my dream I see green, vigorous, high yielding fields of wheat, rice, maize, sorghum and millet
More informationRapid heteromerization and phosphorylation of ligand-activated plant transmembrane receptors and their associated kinase BAK1
Supporting Online Material for Rapid heteromerization and phosphorylation of ligand-activated plant transmembrane receptors and their associated kinase BAK1 Birgit Schulze, Tobias Mentzel, Anna Jehle,
More informationCell Cycle Phase Determination Kit
Cell Cycle Phase Determination Kit Item No. 10009349 Customer Service 800.364.9897 * Technical Support 888.526.5351 www.caymanchem.com TABLE OF CONTENTS GENERAL INFORMATION 3 Materials Supplied 3 Safety
More informationPromoter Decoding of Transcription Factor Dynamics Involves a Trade-Off between Noise and Control of Gene Expression
Molecular Systems Biology Peer Review Process File Promoter Decoding of Transcription Factor Dynamics Involves a Trade-Off between Noise and Control of Gene Expression Anders S. Hansen and Erin K. O'Shea
More information7-011: Detection of Pyricularia oryzae on Oryza sativa (Rice)
International Rules for Seed Testing Annexe to Chapter 7: Seed Health Testing Methods 7-011: Detection of Pyricularia oryzae on Oryza sativa (Rice) Published by: International Seed Testing Association
More informationMTT Cell Proliferation Assay
ATCC 30-1010K Store at 4 C This product is intended for laboratory research purposes only. It is not intended for use in humans, animals or for diagnostics. Introduction Measurement of cell viability and
More informationCell Cycle in Onion Root Tip Cells (IB)
Cell Cycle in Onion Root Tip Cells (IB) A quick overview of cell division The genetic information of plants, animals and other eukaryotic organisms resides in several (or many) individual DNA molecules,
More informationMolecular Biology Techniques: A Classroom Laboratory Manual THIRD EDITION
Molecular Biology Techniques: A Classroom Laboratory Manual THIRD EDITION Susan Carson Heather B. Miller D.Scott Witherow ELSEVIER AMSTERDAM BOSTON HEIDELBERG LONDON NEW YORK OXFORD PARIS SAN DIEGO SAN
More informationCourse Agenda. Mold in Commercial Buildings: Overview of Mold Contamination in Buildings. Overview of Mold Contamination in Buildings
1 Course Agenda What is Mold What to look for Mold in Commercial Buildings: What you should know and look for Presented by David Krause, PhD, MSPH, CIH How to respond to a mold problem Why is mold considered
More informationSafety Report of GelRed and GelGreen
Safety Report of GelRed and GelGreen A Summary of Mutagenicity and Environmental Safety Test Results from Three Independent Laboratories Last updated: October 16, 2013 Overview Ethidium bromide (EB) has
More informationTHE ETCHING OF MARBLE BY ROOTS IN THE PRESENCE AND ABSENCE OF BACTERIA.*
THE ETCHING OF MARBLE BY ROOTS IN THE PRESENCE AND ABSENCE OF BACTERIA.* BY E. B. FRED AND A. R. C. HAAS. (From the Department of Agricultural Bacteriology, University of Wisconsin, Madison.) (Received
More informationContents. List of Contributors. 1 Emerging themes in plant pathogen interactions 1 NICHOLAS J. TALBOT. 2 Tobacco mosaic virus 27 JOHN PETER CARR
Contents List of Contributors Preface x xii 1 Emerging themes in plant pathogen interactions 1 NICHOLAS J. TALBOT 1.1 Introduction 1 1.2 Breaching the host cuticle 1 1.2.1 MAP kinase signalling during
More informationMarine Microbiological Analysis of Ballast Water Samples
MICROBI MARIS BIOTEC Prof. Dr. Johannes F. Imhoff (CEO MicrobiMaris Biotec) Report on the validation of a method for the determination of bacteria (Escherichia coli, Enterococci and Vibrio cholerae) in
More informationLAB 09 Cell Division
LAB 09 Cell Division Introduction: One of the characteristics of living things is the ability to replicate and pass on genetic information to the next generation. Cell division in individual bacteria and
More informationInduction of Enzyme Activity in Bacteria:The Lac Operon. Preparation for Laboratory: Web Tutorial - Lac Operon - submit questions
Induction of Enzyme Activity in Bacteria:The Lac Operon Preparation for Laboratory: Web Tutorial - Lac Operon - submit questions I. Background: For the last week you explored the functioning of the enzyme
More informationTwincore - Zentrum für Experimentelle und Klinische Infektionsforschung Institut für Molekulare Bakteriologie
Twincore - Zentrum für Experimentelle und Klinische Infektionsforschung Institut für Molekulare Bakteriologie 0 HELMHOLTZ I ZENTRUM FÜR INFEKTIONSFORSCHUNG Technische Universität Braunschweig Institut
More informationEffect of radiomimetic agents on two varieties of Trigonella with emphasis on plant height and pod numbers
Biological Forum An International Journal, 1(1): 98-104 (2009) Effect of radiomimetic on two varieties of Trigonella with emphasis on plant height and pod numbers Dheeraj Vasu and Zia Ul Hasan Department
More informationMicroscopes and the Metric System
Microscopes and the Metric System BIO162 Fall 2007 Sizes of Microorganisms: -Viruses: 0.01 0.3 um -Bacteria: 1 3 um -Fungi: 3 30 um -Protozoa: 5 1000 um 1 Measuring Microorganisms Ocular Micrometer The
More informationUnderstanding the immune response to bacterial infections
Understanding the immune response to bacterial infections A Ph.D. (SCIENCE) DISSERTATION SUBMITTED TO JADAVPUR UNIVERSITY SUSHIL KUMAR PATHAK DEPARTMENT OF CHEMISTRY BOSE INSTITUTE 2008 CONTENTS Page SUMMARY
More informationto the Julius Kühn-Institute Federal Research Institute for Cultivated Plants Dr. Frank Riepert
WELCOME to the Julius Kühn-Institute Federal Research Institute for Cultivated Plants Dr. Frank Riepert Institute for Pesticide Research in Berlin-Dahlem (1905) Julius Kühn-Institute The Federal Research
More informationLab 10: Bacterial Transformation, part 2, DNA plasmid preps, Determining DNA Concentration and Purity
Lab 10: Bacterial Transformation, part 2, DNA plasmid preps, Determining DNA Concentration and Purity Today you analyze the results of your bacterial transformation from last week and determine the efficiency
More informationStrawberry Leaf Spot
Strawberry Leaf Spot Cathy Heidenreich and Bill Turechek Introduction - Leaf spot is one of the most common and widespread diseases of strawberry. Mycosphaerella fragariae is also the cause of black seed
More informationAP Biology Essential Knowledge Student Diagnostic
AP Biology Essential Knowledge Student Diagnostic Background The Essential Knowledge statements provided in the AP Biology Curriculum Framework are scientific claims describing phenomenon occurring in
More informationMaster BioMedical Sciences (BMS) Track Cell Biology and Advanced Microscopy
Master BioMedical Sciences (BMS) Track Cell Biology and Advanced Microscopy The five tracks offered in the Medical Biology cluster are: Biochemistry and Metabolic Diseases Cell Biology and Advanced Microscopy
More informationMOLECULAR MARKERS AND THEIR APPLICATIONS IN CEREALS BREEDING
MOLECULAR MARKERS AND THEIR APPLICATIONS IN CEREALS BREEDING Viktor Korzun Lochow-Petkus GmbH, Grimsehlstr.24, 37574 Einbeck, Germany korzun@lochow-petkus.de Summary The development of molecular techniques
More informationCytoSelect LDH Cytotoxicity Assay Kit
Product Manual CytoSelect LDH Cytotoxicity Assay Kit Catalog Number CBA-241 960 assays FOR RESEARCH USE ONLY Not for use in diagnostic procedures Introduction The measurement and monitoring of cell cytotoxicity
More informationTechnical Note. Roche Applied Science. No. LC 18/2004. Assay Formats for Use in Real-Time PCR
Roche Applied Science Technical Note No. LC 18/2004 Purpose of this Note Assay Formats for Use in Real-Time PCR The LightCycler Instrument uses several detection channels to monitor the amplification of
More informationPineapples. Ian Hewett Horticultural Marketing Inspectorate United Kingdom. Version - October 2011
Pineapples Ian Hewett Horticultural Marketing Inspectorate United Kingdom Version - October 2011 1 Definition Of Produce This Standard applies to pineapples of varieties (cultivars) grown from Ananascomosus(L).
More informationCasting Process Simulation of Compacted Graphite Iron (03-025)
Casting Process Simulation of Compacted Graphite Iron (03-025) Copyright 2003 American Foundry Society Dipl.-Ing. C. Heisser MAGMA Foundry Technologies, Inc., Arlington Heights, Illinois Dr.-Ing. Jörg
More informationIdentification of the VTEC serogroups mainly associated with human infections by conventional PCR amplification of O-associated genes
Identification of the VTEC serogroups mainly associated with human infections by conventional PCR amplification of O-associated genes 1. Aim and field of application The present method concerns the identification
More informationMechanism of short-term ERK activation by electromagnetic fields at mobile phone frequencies. Biochemistry Journal. August 1, 2007 405, pp.
Mechanism of short-term ERK activation by electromagnetic fields at mobile phone frequencies 1 Biochemistry Journal August 1, 2007 405, pp. 559 568 Joseph Friedman, Sarah Kraus, Yirmi Hauptman, Yoni Schiff
More informationTools to catch (meta)data for phenotyping
Tools to catch (meta)data for phenotyping Karin Köhl DFG Informationsmanagement MPI for Molecular Plant Physiology: Infrastructure group Plant cultivation/transformation Dr. Karin Köhl 1 Information types
More informationThe Effect of the Trichoderma harzianum Strains on the Growth of Tomato Seedlings
The Effect of the Trichoderma harzianum Strains on the Growth of Tomato Seedlings N. Ozbay and S.E. Newman Horticulture and Landscape Architecture Colorado State University Fort Collins, Colo. U.S.A. W.M.
More informationWater movement in the xylem Water moves from roots to leaves through the xylem. But how? Hypotheses: 1. Capillary action - water will move upward in
Transport in Plants Two Transport Processes Occur in Plants 1. Carbohydrates carried from leaves (or storage organs) to where they are needed (from sources to sinks) 2. Water transported from roots to
More informationS1 Text. Modeling deterministic single-cell microrna-p53-mdm2 network Figure 2 Figure 2
S1 Text. Modeling deterministic single-cell microrna-p53-mdm2 network The schematic diagram of the microrna-p53-mdm2 oscillator is illustrated in Figure 2. The interaction scheme among the mrnas and the
More informationChapter 8. Summary and Perspectives
Chapter 8 Summary and Perspectives 131 Chapter 8 Summary Overexpression of the multidrug resistance protein MRP1 confer multidrug resistance (MDR) to cancer cells. The contents of this thesis describe
More informationPublikationsliste Claudia Götz
Publikationsliste Claudia Götz 1. Reinhard,B., Götz, C., and Faillard, H.: Synthesis of N-Acetyl-9-Oacetylneuraminic acid α-p-aminophenylthioketoside and its application as ligand in the affinity chromatography
More informationSupplementary Figure 1.
Supplementary Figure 1. (A) MicroRNA 212 enhances IS from pancreatic β-cells. INS-1 832/3 β-cells were transfected with precursors for mirnas 212, 375, or negative control oligonucleotides. 48 hrs after
More informationAMES TEST: Bacterial Reverse Mutation Assay
AMES TEST: Bacterial Reverse Mutation Assay 1. Introduction The bacteria reversed mutation assay (Ames Test) is used to evaluate the mutagenic properties of test articles. The test uses amino acid-dependent
More informationMicroarray Technology
Microarrays And Functional Genomics CPSC265 Matt Hudson Microarray Technology Relatively young technology Usually used like a Northern blot can determine the amount of mrna for a particular gene Except
More informationHormones & Chemical Signaling
Hormones & Chemical Signaling Part 2 modulation of signal pathways and hormone classification & function How are these pathways controlled? Receptors are proteins! Subject to Specificity of binding Competition
More informationUses of Flow Cytometry
Uses of Flow Cytometry 1. Multicolour analysis... 2 2. Cell Cycle and Proliferation... 3 a. Analysis of Cellular DNA Content... 4 b. Cell Proliferation Assays... 5 3. Immunology... 6 4. Apoptosis... 7
More informationSampling of the surface contamination using sterile cotton swabs from toys obtained from
RESULTS Sampling of the surface contamination using sterile cotton swabs from toys obtained from the Nursery at Queen Mary, University of London showed diverse microorganism growth. A variety of species
More informationAcknowledgements. Developing collaborative lab experiments across disciplines through the identification of bacteria
Acknowledgements Developing collaborative lab experiments across disciplines through the identification of bacteria Joanna Huxster, Ph.D. Sarah Moss, MS 15 Emily Bilyk, BS 16 Brian M. Forster, Ph.D. Lab
More informationMRET-Shield Synopsis of Scientific Research Updated on June 1, 2007
MRET-Shield Synopsis of Scientific Research Updated on June 1, 27 MRET-Shield material and devices made, when placed in proximity to persons, animals and plants serve to lessen adverse health effects caused
More informationViruses. Viral components: Capsid. Chapter 10: Viruses. Viral components: Nucleic Acid. Viral components: Envelope
Viruses Chapter 10: Viruses Lecture Exam #3 Wednesday, November 22 nd (This lecture WILL be on Exam #3) Dr. Amy Rogers Office Hours: MW 9-10 AM Too small to see with a light microscope Visible with electron
More information