The grant details show the name of the PI, active dates of the project, the funding institute and the abstract of the grant. This abstract is what is used to create the Fingerprint of the grant. The source of grants for this application is NIH ExPORTER, so only NIH grants are included. More information is available at http://projectreporter.nih.gov/ExPORTER/default.aspx.
Stomate-based innate immunity against bacterial infection in Arabidopsis
1 April 2008 - 31 March 2013
NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES
Total Funding: $ 2,048,489
DESCRIPTION (provided by applicant): Innate immunity in animals and plants can be activated by highly conserved pathogen/microbe- associated molecular patterns (PAMPs/MAMPs), such as bacterial flagellin and lipopolysaccharides (LPSs). Recent studies provide evidence that plant stomata, pores in the epidermis of plants, function in innate immunity against the entry of bacteria into the plant. Specifically, stomata close in response to Escherichia coli O157:H7 and Pseudomonas syringae pv. tomato (Pst) DC3000 or bacterial PAMPs. Perception of PAMPs by guard cells, the pair of cells that forms the stomatal pore, requires a flagellin receptor as well as production and signaling of the plant hormones abscisic acid and salicylic acid. The virulent plant pathogen Pst DC3000 produces the phytotoxin coronatine (COR) to suppress stomatal closure as a virulence strategy. Collectively, these results suggest an important role of stomata in modulating the interactions of plants with plant and human pathogenic bacteria in the phyllosphere (the leaf surface). The long-term goal of this project is to elucidate the signal transduction pathway leading to stomate- based defense and to dissect the mechanism by which the bacterial toxin COR inhibits this novel host defense. The central hypotheses to be tested are that (i) stomate-based defense is an integral part of the plant's natural immune response to restrict the entry of bacteria, including human pathogenic bacteria, and (ii) to be successful, plant pathogens must rely on specific virulence factors or environmental conditions to suppress stomate-based defense. An integrative approach involving molecular genetics, microscopy, and biochemical and pathogenesis assays will be used. The proposed research will contribute to the fundamental knowledge of innate immunity and bacterial pathogenesis in plants and will increase our understanding of the molecular basis of plant-human pathogen interactions in the phyllosphere. Human pathogen contamination of fresh vegetables is a major public health concern and a potential bio-terrorist threat as a source of food poisoning. PUBLIC HEALTH RELEVANCE: This proposal describes basic research on the molecular basis of innate immunity of the model plant Arabidopsis to plant and human pathogenic bacteria. Food contamination with human pathogens is a major concern to public health. This research has the potential to provide a mechanistic understanding of plant defense and human pathogen contamination of fresh produce and to guide future development of appropriate prevention measures.
10 Resulting Publications
John Withers; Jian Yao; Christy Mecey; Gregg A Howe; Maeli Melotto; Sheng Yang HeProceedings of the National Academy of Sciences of the United States of America 2012;109(49):20148-53.
Xiao-Yu Zheng; Natalie Weaver Spivey; Weiqing Zeng; Po-Pu Liu; Zheng Qing Fu; Daniel F Klessig; Sheng Yang He; Xinnian DongCell host & microbe 2012;11(6):587-96.
Dong-Lei Yang; Jian Yao; Chuan-Sheng Mei; Xiao-Hong Tong; Long-Jun Zeng; Qun Li; Lang-Tao Xiao; Tai-ping Sun; Jigang Li; Xing-Wang Deng; et al.Proceedings of the National Academy of Sciences of the United States of America 2012;109(19):E1192-200.
Weiqing Zeng; Alexandre Brutus; James M Kremer; John C Withers; Xiaoli Gao; A Daniel Jones; Sheng Yang HePLoS pathogens 2011;7(10):e1002291.
Laura B Sheard; Xu Tan; Haibin Mao; John Withers; Gili Ben-Nissan; Thomas R Hinds; Yuichi Kobayashi; Fong-Fu Hsu; Michal Sharon; John Browse; et al.Nature 2010;468(7322):400-5.
Weiqing Zeng; Maeli Melotto; Sheng Yang HeCurrent opinion in biotechnology 2010;21(5):599-603.
Weiqing Zeng; Sheng Yang HePlant physiology 2010;153(3):1188-98.
Wei Zhang; Sheng Yang He; Sarah M AssmannThe Plant journal : for cell and molecular biology 2008;56(6):984-96.
Maeli Melotto; Christy Mecey; Yajie Niu; Hoo Sun Chung; Leron Katsir; Jian Yao; Weiqing Zeng; Bryan Thines; Paul Staswick; John Browse; et al.
A critical role of two positively charged amino acids in the Jas motif of Arabidopsis JAZ proteins in mediating coronatine- and jasmonoyl isoleucine-dependent interactions with the COI1 F-box protein.The Plant journal : for cell and molecular biology 2008;55(6):979-88.
Maeli Melotto; William Underwood; Sheng Yang HeAnnual review of phytopathology 2008;46():101-22.
This section shows information that has been computed by using the fingerprint of the grant, including related publications, related experts and related grants - all with fingerprints representing significant amounts of overlap between their fingerprint and this grant. The red dots indicate whether those experts or terms actually appear within this grant, showing potential and actual connections.
HOWE, GREGG A
1 September 1998 - 31 August 2013
NATIONAL INSTITUTE OF GENERAL MEDICAL SCIENCES
Total Funding: $ 3,124,196
YU, FU-SHIN X
1 December 2006 - 30 April 2016
NATIONAL EYE INSTITUTE
Total Funding: $ 1,873,881
He, Sheng Y
30 September 2004 - 31 August 2006
NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES
Total Funding: $ 377,500
Maeli Melotto; William Underwood; Jessica Koczan; Kinya Nomura; Sheng Yang HeCell 2006;126(5):969-80.
Roger Thilmony; William Underwood; Sheng Yang HeThe Plant journal : for cell and molecular biology 2006;46(1):34-53.
William Underwood; Maeli Melotto; Sheng Yang HeCellular microbiology 2007;9(7):1621-9.
Appears in this Publication
Author of this Publication