期刊
SCIENCE
卷 323, 期 5910, 页码 95-101出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1164627
关键词
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资金
- NIH National Research Service Award-Kirschstein Postdoctoral Fellowship [R37-GM48707]
- NSF [IOS-0718733, DBI-0500550, MCB-0519898]
- Direct For Biological Sciences
- Division Of Integrative Organismal Systems [929226] Funding Source: National Science Foundation
The perception of pathogen or microbe- associated molecular pattern molecules by plants triggers a basal defense response analogous to animal innate immunity and is defined partly by the deposition of the glucan polymer callose at the cell wall at the site of pathogen contact. Transcriptional and metabolic profiling in Arabidopsis mutants, coupled with the monitoring of pathogen- triggered callose deposition, have identified major roles in pathogen response for the plant hormone ethylene and the secondary metabolite 4- methoxy- indol- 3- ylmethylglucosinolate. Two genes, PEN2 and PEN3, are also necessary for resistance to pathogens and are required for both callose deposition and glucosinolate activation, suggesting that the pathogen- triggered callose response is required for resistance to microbial pathogens. Our study shows that well-studied plant metabolites, previously identified as important in avoiding damage by herbivores, are also required as a component of the plant defense response against microbial pathogens.
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