کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1933472 | 1050614 | 2009 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: An S-locus receptor-like kinase plays a role as a negative regulator in plant defense responses An S-locus receptor-like kinase plays a role as a negative regulator in plant defense responses](/preview/png/1933472.png)
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.
Journal: Biochemical and Biophysical Research Communications - Volume 381, Issue 3, 10 April 2009, Pages 424–428