An S-locus receptor-like kinase plays a role as a negative regulation in plant defense responses
- Authors
- Kim, Ho Soo; Jung, Mi Soon; Lee, Sang Min; Kim, Kyung Eun; Byun, Hyejin; Choi, Man Soo; Park, Hyeong Cheol; Cho, Moo Je; Chung, Woo Sik
- Issue Date
- 10-Apr-2009
- Publisher
- ACADEMIC PRESS INC ELSEVIER SCIENCE
- Keywords
- Arabidopsis; Plant defense responses; PR1; Receptor-like protein kinase
- Citation
- BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS, v.381, no.3, pp.424 - 428
- Indexed
- SCIE
SCOPUS
- Journal Title
- BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
- Volume
- 381
- Number
- 3
- Start Page
- 424
- End Page
- 428
- URI
- https://scholarworks.bwise.kr/gnu/handle/sw.gnu/26322
- DOI
- 10.1016/j.bbrc.2009.02.050
- ISSN
- 0006-291X
- Abstract
- Plant cells often use cell surface receptors to sense environmental changes and then transduce external signals via activated signaling pathways to trigger adaptive responses. In Arabidopsis, the receptor-like protein kinase (RLK) gene family contains more than 600 members, and some of these are induced by pathogen infection, Suggesting a possible role in plant defense responses. We previously characterized an S-locus RLK (CBRLK1) at the biochemical level. In this study, we examined the physiological function of CBRLK1 in defense responses. CBRLK1 mutant and CBRLK1-overexpressing transgenic plants showed enhanced and reduced resistance against a virulent bacterial pathogen, respectively. The altered pathogen resistances of the mutant and overexpressing transgenic plants were associated with increased and reduced induction of the pathogenesis-related gene PR1, respectively. These results suggest that CBRLK1 plays a negative role in the disease resistance signaling pathway in Arabidopsis. (C) 2009 Elsevier Inc. All rights reserved.
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