A
Alan Collmer
Researcher at Cornell University
Publications - 172
Citations - 18990
Alan Collmer is an academic researcher from Cornell University. The author has contributed to research in topics: Pseudomonas syringae & Effector. The author has an hindex of 74, co-authored 171 publications receiving 18155 citations. Previous affiliations of Alan Collmer include University of Maryland, College Park & Washington State University.
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Pseudomonas syringae pv. syringae harpinPss: A protein that is secreted via the hrp pathway and elicits the hypersensitive response in plants
TL;DR: The ability of P. syringae to elicit the hypersensitive response in nonhost plants or pathogenesis in hosts is controlled by hrp genes, which encodes harpinPss, a 34.7 kd extracellular protein that elicits hypersensitive necrosis in tobacco and other plants.
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The Pseudomonas syringae Hrp pathogenicity island has a tripartite mosaic structure composed of a cluster of type III secretion genes bounded by exchangeable effector and conserved effector loci that contribute to parasitic fitness and pathogenicity in plants
James R. Alfano,Amy O. Charkowski,Amy O. Charkowski,Wen Ling Deng,Jorge L. Badel,Tanja Petnicki-Ocwieja,Karin V. van Dijk,Alan Collmer +7 more
TL;DR: DNA sequence analysis of the hrp/hrc regions in Psy 61, Psy B728a, and Pto DC3000 has revealed a Hrp pathogenicity island (Pai) with a tripartite mosaic structure, and deletion of a large portion of the CEL strongly reduces growth and abolishes pathogenicicity in tomato.
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An nptI-sacB-sacR cartridge for constructing directed, unmarked mutations in Gram-negative bacteria by marker exchange-eviction mutagenesis
Jeffrey L. Ried,Alan Collmer +1 more
TL;DR: The technique permits the construction of complex strains with many directed mutations without the introduction of a corresponding number of antibiotic resistance markers and should prove useful, for example, in exploring the role of the multiple pel genes in E. chrysanthemi.
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Bacterial Pathogens in Plants: Life up against the Wall.
James R. Alfano,Alan Collmer +1 more
TL;DR: A model for bacterial plant pathogenesis is developed based on the very recent third development-the discovery that the hrp genes encode a protein secretion system that has the potential to transfer virulence proteins into eukaryotic host cells.
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Whole-Genome Sequence Analysis of Pseudomonas syringae pv. phaseolicola 1448A Reveals Divergence among Pathovars in Genes Involved in Virulence and Transposition
Vinita Joardar,Magdalen Lindeberg,Robert W. Jackson,Jeremy D. Selengut,Robert J. Dodson,Lauren M. Brinkac,Sean C. Daugherty,Robert T. DeBoy,A. Scott Durkin,Michelle G. Giglio,Ramana Madupu,William C. Nelson,M. J. Rosovitz,Steven A. Sullivan,Jonathan Crabtree,Todd Creasy,Tanja M. Davidsen,Daniel H. Haft,Nikhat Zafar,Liwei Zhou,Rebecca A. Halpin,Tara Holley,Hoda Khouri,Tamara Feldblyum,Owen White,Claire M. Fraser,Arun K. Chatterjee,Sam Cartinhour,David J. Schneider,John W. Mansfield,Alan Collmer,C. Robin Buell +31 more
TL;DR: Examination of the complement of ORFs encoding virulence, fitness, and survival factors revealed a substantial, but not complete, overlap between these two pathovars.