期刊
FEBS LETTERS
卷 580, 期 17, 页码 4236-4241出版社
WILEY
DOI: 10.1016/j.febslet.2006.06.077
关键词
plant disease resistance; Cf-9; thioredoxin; kinase
Tomato Cf-9, a receptor-like protein (RLP), confers resistance to races of the fungal pathogen Cladosporium fulvum that express the Avr9 avirulence gene. CITRX (Cf-9-interacting thioredoxin) was previously identified in a yeast two-hybrid screen as a protein interacting with the cytoplasmic domain of Cf-9 and shown to be a negative regulator of the cell death induced after Cf-9/Avr9 interaction. ACIK1 is a Ser/Thr protein kinase that is specifically required for the Cf-9 and Cf-4 dependent defence response in tomato. In this paper we present data suggesting that CITRX may act as an adaptor recruiting the ACIK1 kinase to the cytoplasmic domain of Cf-9 upon elicitation with the Avr9 peptide. Interestingly, the catalytic activities of both CITRX and ACIK1 are not required for their interaction. (c) 2006 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.
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