Research Topics
| Pamela RonaldSummaryAffiliation: University of California Country: USA Publications
Research Grants
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Detail Information
Publications
Comparative analysis of protein-protein interactions in the defense response of rice and wheatDario Cantu
Department of Viticulture and Enology, University of California Davis, Davis, CA, USA
BMC Genomics 14:166. 2013..As entry points we selected proteins that serve as key regulators of the rice defense response: the RAR1/SGT1/HSP90 protein complex, NPR1, XA21, and XB12 (XA21 interacting protein 12)...- A rice transient assay system identifies a novel domain in NRR required for interaction with NH1/OsNPR1 and inhibition of NH1-mediated transcriptional activationMawsheng Chern
Department of Plant Pathology, University of California, Davis, Davis, CA 95616, USA
Plant Methods 8:6. 2012..abstract:.. 
Small protein-mediated quorum sensing in a gram-negative bacterium: novel targets for control of infectious diseasePamela C Ronald
Department of Plant Pathology and the Genome Center, University of California at Davis, One Shields Avenue, Davis, California 95616, USA
Discov Med 12:461-70. 2011..oryzae. Knowledge of small protein-mediated QS in Gram-negative bacteria can be used to develop new methods to control persistent Gram-negative infections...- Combining multivariate analysis and monosaccharide composition modeling to identify plant cell wall variations by Fourier Transform Near Infrared spectroscopyAndreia M Smith-Moritz
Joint BioEnergy Institute, Lawrence Berkeley National Laboratory, One Cyclotron Road MS 978 4101, Berkeley, CA 94720, USA
Plant Methods 7:26. 2011..This model was then used to identify specific monosaccharide outliers from the mutant population... - An efficient method for visualization and growth of fluorescent Xanthomonas oryzae pv. oryzae in plantaSang Wook Han
Department of Plant Pathology, University of California, One Shields Avenue, Davis, CA 95616, USA
BMC Microbiol 8:164. 2008..Xanthomonas oryzae pv. oryzae, the causal agent of bacterial blight disease, is a serious pathogen of rice. Here we describe a fluorescent marker system to study virulence and pathogenicity of X. oryzae pv. oryzae... - Genome sequence and rapid evolution of the rice pathogen Xanthomonas oryzae pv. oryzae PXO99ASteven L Salzberg
Center for Bioinformatics and Computational Biology, University of Maryland, College Park, MD 20742, USA
BMC Genomics 9:204. 2008..We report here on the complete genome sequence of strain PXO99A and its comparison to two previously sequenced strains, KACC10331 and MAFF311018, which are highly similar to one another... - Direct calibration of PICKY-designed microarraysHui Hsien Chou
Department of Genetics, Development and Cell Biology and Department of Computer Science, Iowa State University, Ames, IA 50011, USA
BMC Bioinformatics 10:347. 2009..Few microarrays have been quantitatively calibrated to identify optimal hybridization conditions because it is difficult to precisely determine the hybridization characteristics of a microarray using biologically variable cDNA samples... - Assessing probe-specific dye and slide biases in two-color microarray dataRuixiao Lu
Department of Data Analysis and Algorithm, Affymetrix, Inc, Santa Clara, California, USA
BMC Bioinformatics 9:314. 2008..We show how this improved the performance of two-color array analysis for arrays for genomic analysis of biological samples ranging from rice to human tissue... 
Plant and animal sensors of conserved microbial signaturesPamela C Ronald
Department of Plant Pathology, University of California, Davis, CA 95616, USA
Science 330:1061-4. 2010..The discoveries leading to elucidation of these receptors and their ligands followed a similar logical and methodological pathway in both plant and animal research...- The future of sustainable food productionPamela Ronald
Department of Plant Pathology, University of California, Davis, California 95616, USA
Ann N Y Acad Sci 1190:184-5. 2010..Clearly, there must be a better way to resolve the need for increased food production with the desire to minimize its impact... - Plant genetics, sustainable agriculture and global food securityPamela Ronald
University of California, Davis, CA 95616, USA
Genetics 188:11-20. 2011.... - The rice genome. The most precious things are not jade and pearlsPamela Ronald
Department of Plant Pathology, University of California Davis, Davis, CA 95616, USA
Science 296:58-9. 2002 - Resistance gene evolutionP C Ronald
Department of Plant Pathology, 1 Shields Avenue, University of California at Davis, CA 95616, USA
Curr Opin Plant Biol 1:294-8. 1998..Resistance gene clusters appear to evolve more rapidly than other regions of the genome, and domains responsible for recognitional specificity, such as the leucine-rich repeat domain, are subject to adaptive selection... - Evolution of the rice Xa21 disease resistance gene familyW Y Song
Department of Plant Pathology, University of California, Davis 95616, USA
Plant Cell 9:1279-87. 1997..Insertions of transposon-like sequences truncated two of the predicted open reading frames. A model for amplification and diversification of the Xa21 gene family is presented... - A two-genome microarray for the rice pathogens Xanthomonas oryzae pv. oryzae and X. oryzae pv. oryzicola and its use in the discovery of a difference in their regulation of hrp genesYoung Su Seo
Department of Plant Pathology, University of California, Davis, CA 95616, USA
BMC Microbiol 8:99. 2008..XOM2, a minimal medium previously reported to induce hrp genes in Xoo strain T7174... - Biosynthesis and emission of insect-induced methyl salicylate and methyl benzoate from riceNan Zhao
Department of Plant Sciences, 252 Ellington Plant Sciences Building, University of Tennessee, 2431 Joe Johnson Drive, Knoxville, TN 37996, USA
Plant Physiol Biochem 48:279-87. 2010..The role of the volatile products of OsBSMT1, MeSA and MeBA, in rice defense against insect herbivory is discussed... - Construction and application of efficient Ac-Ds transposon tagging vectors in riceShaohong Qu
Department of Plant Pathology, Ohio State University, Columbus OH 43210, USA
J Integr Plant Biol 51:982-92. 2009..Our results showed that these vectors are useful resources for functional genomics of rice and other crop plants. The vectors are freely available for the community... - A viral resistance gene from common bean functions across plant families and is up-regulated in a non-virus-specific mannerYoung-Su Seo
Department of Plant Pathology and Section of Plant Biology, University of California, Davis, CA 95616, USA
Proc Natl Acad Sci U S A 103:11856-61. 2006..This experimental approach holds promise for providing insights into the mechanisms by which plants activate resistance responses against pathogens... - The Xanthomonas oryzae pv. oryzae PhoPQ two-component system is required for AvrXA21 activity, hrpG expression, and virulenceSang Won Lee
Department of Plant Pathology, University of California, One Shields Ave, Davis, CA 95616, USA
J Bacteriol 190:2183-97. 2008..These results suggest that the X. oryzae pv. oryzae PhoPQ TCS functions in virulence and in the production of AvrXA21 in partnership with RaxRH... - Fertility versus disease resistance, a hard choiceRebecca Bart
Department of Pathology, University of California, Davis, California 95616, USA
Genes Dev 20:1215-7. 2006 - Genetic and physical mapping of Pi5(t), a locus associated with broad-spectrum resistance to rice blastJ-S Jeon
Department of Plant Pathology, University of California, One Shields Avenue, Davis 95616, USA
Mol Genet Genomics 269:280-9. 2003..DNA gel-blot analyses indicated that the region around Pi3(t) is identical to that of Pi5(t), suggesting that Pi3(t) and Pi5(t) are the same resistance gene... - Isolation and characterization of rice mutants compromised in Xa21-mediated resistance to X. oryzae pv. oryzaeG L Wang
Department of Plant Pathology, The Ohio State University, Kottman Hall, 2021 Coffey Road, Columbus, OH 43210 1087, USA
Theor Appl Genet 108:379-84. 2004..The mutants identified in this study provide useful materials for dissecting the Xa21-mediated resistance pathway in rice... - Molecular determinants of disease and resistance in interactions of Xanthomonas oryzae pv. oryzae and riceYuwei Shen
Department of Plant Pathology, University of California, Davis 95616, USA
Microbes Infect 4:1361-7. 2002..oryzae is the causal agent of rice bacterial blight disease. Numerous genes critical for virulence have been identified. This article reviews current knowledge on the molecular mechanisms of X. oryzae pv. oryzae virulence... - The Xanthomonas oryzae pv. lozengeoryzae raxP and raxQ genes encode an ATP sulphurylase and adenosine-5'-phosphosulphate kinase that are required for AvrXa21 avirulence activityYuwei Shen
Department of Plant Pathology, University of California Davis, CA 95616, USA
Mol Microbiol 44:37-48. 2002..Taken together, these results demonstrate that APS and PAPS production plays a critical role in determining avirulence of a phytopathogen and reveal a commonality between symbiotic and phytopathogenic bacteria... - Evidence for a disease-resistance pathway in rice similar to the NPR1-mediated signaling pathway in ArabidopsisM S Chern
Department of Plant Pathology, University of California Davis, Davis, California 95616, USA
Plant J 27:101-13. 2001..These results also suggest that monocot and dicot plants share a conserved signal transduction pathway controlling NPR1-mediated resistance... - The cloned avirulence gene avrPto induces disease resistance in tomato cultivars containing the Pto resistance geneP C Ronald
Department of Plant Pathology, University of California, Berkeley 94720
J Bacteriol 174:1604-11. 1992..syringae pv. glycinea transconjugants carrying avrPto elicit a typical hypersensitive resistant response in the soybean cultivar Centennial, suggesting conservation of Pto function between two crop plants, tomato and soybean... - The avirulence gene avrBs1 from Xanthomonas campestris pv. vesicatoria encodes a 50-kD proteinP C Ronald
Department of Plant Pathology, University of California, Berkeley 94720
Mol Plant Microbe Interact 1:191-8. 1988..glycinea race 6, and 86% homology over a region of 49 amino acids. P. s. pv. glycinea, however, did not induce an HR on ECW10R plants.(ABSTRACT TRUNCATED AT 250 WORDS).. - Bacterial genes involved in type I secretion and sulfation are required to elicit the rice Xa21-mediated innate immune responseFrancisco Goes da Silva
Dept Plant Pathology, One Shields Ave, UC Davis, CA 95616, USA
Mol Plant Microbe Interact 17:593-601. 2004.... - Rice XB15, a protein phosphatase 2C, negatively regulates cell death and XA21-mediated innate immunityChang Jin Park
Department of Plant Pathology, University of California Davis, Davis, California, USA
PLoS Biol 6:e231. 2008..oryzae. These results demonstrate that Xb15 encodes a PP2C that negatively regulates the XA21-mediated innate immune response... - Identification and functional analysis of light-responsive unique genes and gene family members in riceKi Hong Jung
Department of Plant Pathology, University of California Davis, Davis, California, United States of America
PLoS Genet 4:e1000164. 2008..These data demonstrate the efficiency of combining gene family-based expression profiles with analyses of insertional mutants to identify novel genes and their functions, even among members of multi-gene families... - Overexpression of a rice NPR1 homolog leads to constitutive activation of defense response and hypersensitivity to lightMawsheng Chern
Department of Plant Pathology, University of California, Davis 95616, USA
Mol Plant Microbe Interact 18:511-20. 2005..These results indicate that NH1 may be involved in the regulation of SA in response to environmental changes... - Alteration of TGA factor activity in rice results in enhanced tolerance to Xanthomonas oryzae pv. oryzaeHeather A Fitzgerald
Department of Plant Pathology, University of California, Davis, CA 95616, USA
Plant J 43:335-47. 2005..The results presented in this study suggest that wild-type rTGA2.1 has primarily a negative role in rice basal defense responses to bacterial pathogens... - Sub1A is an ethylene-response-factor-like gene that confers submergence tolerance to riceKenong Xu
Department of Plant Pathology, University of California, Davis, California 95616, USA
Nature 442:705-8. 2006..Cultivation of this variety is expected to provide protection against damaging floods and increase crop security for farmers... - From the Academy: Colloquium review. Unique characteristics of Xanthomonas oryzae pv. oryzae AvrXa21 and implications for plant innate immunitySang-Won Lee
Department of Plant Pathology, University of California, One Shields Avenue, Davis, CA 95616, USA
Proc Natl Acad Sci U S A 103:18395-400. 2006..These results from our studies of the XA21/AvrXa21 interaction call for some modifications in the way we think about innate immunity strategies... - Yeast two-hybrid approaches to dissecting the plant defense responseMawsheng Chern
Department of Plant Pathology, University of California, Davis, USA
Methods Mol Biol 354:79-83. 2007..We have successfully used it not only to isolate Arabidopsis NPR1-interactors from rice but also to pull out the rice NPR1 ortholog using one of the interactors as bait... - A variable cluster of ethylene response factor-like genes regulates metabolic and developmental acclimation responses to submergence in riceTakeshi Fukao
Department of Botany and Plant Sciences, Center for Plant Cell Biology, University of California, Riverside, California 92521, USA
Plant Cell 18:2021-34. 2006.... - Towards a better bowl of rice: assigning function to tens of thousands of rice genesKi Hong Jung
Department of Plant Pathology, 1 Shields Avenue, UC Davis, Davis, California 95616, USA
Nat Rev Genet 9:91-101. 2008..Such discoveries have broad practical implications for understanding the biological processes of rice and other economically important grasses such as cereals and bioenergy crops... - Rice XA21 binding protein 3 is a ubiquitin ligase required for full Xa21-mediated disease resistanceYong Sheng Wang
Department of Plant Pathology, University of Florida, Gainesville, Florida 32611, USA
Plant Cell 18:3635-46. 2006..oryzae pv oryzae. Furthermore, reduced levels of Xb3 lead to decreased levels of the XA21 protein. These results indicate that Xb3 is necessary for full accumulation of the XA21 protein and for Xa21-mediated resistance... - Rice NRR, a negative regulator of disease resistance, interacts with Arabidopsis NPR1 and rice NH1Mawsheng Chern
Department of Plant Pathology, University of California, Davis, CA 95616, USA
Plant J 43:623-35. 2005..The fact that NRR compromises Xa21-mediated resistance indicates cross-talk or overlap between NH1- and Xa21-mediated pathways... - Biochemical characterization of the kinase domain of the rice disease resistance receptor-like kinase XA21Guo-Zhen Liu
Department of Plant Pathology, University of Florida, Gainesville, Florida 32611, USA
J Biol Chem 277:20264-9. 2002.... - Overexpression of (At)NPR1 in rice leads to a BTH- and environment-induced lesion-mimic/cell death phenotypeHeather A Fitzgerald
Department of Plant Pathology, University of California, Davis 95616, USA
Mol Plant Microbe Interact 17:140-51. 2004.... - Use of Nipponbare BAC clones for physical mapping of an R gene locus in riceJong Seong Jeon
Graduate School of Biotechnology and Plant Metabolism Research Center, Kyung Hee University, Yongin, Korea
Methods Mol Biol 354:45-56. 2007..This advanced strategy should be useful for the efficient identification of agronomic important R genes from many resistant rice genotypes, including wild rice species... - Marker-exchange mutagenesis and complementation strategies for the Gram-negative bacteria Xanthomonas oryzae pv. oryzaeSang Won Lee
Department of Plant Pathology, University of California, Davis, USA
Methods Mol Biol 354:11-8. 2007..oryzae. We have used these methods to demonstrate that type I secretion and modification systems are involved in avrXa21 activity of X. oryzae pv. oryzae... - Engineering pathogen resistance in crop plantsMatthew A Campbell
Department of Plant Pathology, University of California at Davis, Davis, CA 95616, USA
Transgenic Res 11:599-613. 2002..Many of these strategies show great promise, some limitations, and exciting opportunities to develop many new tools for combating plant pests...
Research Grants
- KINASE MEDIATED SIGNALING IN THE RICE DEFENSE RESPONSEPamela Ronald; Fiscal Year: 2009..Characterize the cellular interactions of XA2jl and Xbs and identify new components in the in vivo complexes. ..
- KINASE MEDIATED SIGNALING IN THE RICE DEFENSE RESPONSEPamela Ronald; Fiscal Year: 2006..Characterize the cellular interactions of XA2jl and Xbs and identify new components in the in vivo complexes. ..
- KINASE MEDIATED SIGNALING IN THE RICE DEFENSE RESPONSEPamela Ronald; Fiscal Year: 2003..Accomplishments of the proposed objectives will, for the first time, lead to the establishment of the causal connection between a plant receptor kinase and the associated downstream response. ..
- Receptor Kinase-Mediated Signaling in the Innate Immune ResponsePamela C Ronald; Fiscal Year: 2010..Abnormal regulation can lead to a variety of diseases and it is therefore important to understand how RK specificity and function are controlled. ..