期刊
MOLECULAR PLANT PATHOLOGY
卷 6, 期 1, 页码 79-83出版社
WILEY
DOI: 10.1111/j.1364-3703.2004.00265.x
关键词
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The phytotoxin coronatine is a jasmonate mimic produced by Pseudomonas syringae pv. tomato (Pst). Coronatine acts as a virulence factor in Arabidopsis and mutants insensitive to coronatine are resistant to Pst and have higher levels of salicylic acid (SA). In this work we used the SA-deficient lines NahG and sid22 to determine if coronatine acts directly as a virulence factor or indirectly by SA suppression. Using coronatine-deficient Pstmutants we demonstrated that the lack of coronatine compromises Pst virulence in both wild-type and SA-deficient Arabidopsis. Thus, the action of coronatine is not due to SA suppression. Rather, SA-independent jasmonate-responses are the most likely mechanism for its action.
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