OsSERK1 regulates rice development but not immunity to Xanthomonas oryzae pv. oryzae or Magnaporthe oryzae

被引：0

作者：

Shimin Zuo ^{[1
,2
,3
,4
]}

Xiaogang Zhou ^{[5
]}

Mawsheng Chen ^{[1
]}

Shilu Zhang ^{[1
]}

Benjamin Schwessinger ^{[1
,2
]}

Deling Ruan ^{[1
,2
]}

Can Yuan ^{[5
]}

Jing Wang ^{[5
]}

Xuewei Chen ^{[5
]}

Pamela CRonald ^{[1
,2
]}

机构：

[1] Department of Plant Pathology and the Genome Center, University of California

[2] Joint Bioenergy Institute,Emeryville, California , USA

[3] Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, College of Agriculture, Yangzhou University

[4] Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Agriculture, Yangzhou University

[5] Rice Research Institute, Sichuan Agricultural University at Wenjiang

来源：

Journal of Integrative Plant Biology | 2014年 / 56卷 / 12期

关键词：

Oryza sativa; OsSERK1; somatic embryogenesis receptor kinase; Xanthomonas oryzae pv.Oryzae; Magnaporthe oryzae;

D O I：

暂无

中图分类号：

S435.111.4 [侵（传）染性病害];

学科分类号：

090401 ; 090402 ;

摘要：

Somatic embryogenesis receptor kinase(SERK)proteins play pivotal roles in regulation of plant development and immunity. The rice genome contains two SERK genes,OsSerk1 and OsSerk2. We previously demonstrated that OsSerk2 is required for rice Xa21-mediated resistance to Xanthomonas oryzae pv. oryzae(Xoo) and for normal development. Here we report the molecular characterization of OsSerk1. Overexpression of OsSerk1 results in a semi-dwarf phenotype whereas silencing of OsSerk1 results in a reduced angle of the lamina joint. OsSerk1 is not required for rice resistance to Xoo or Magnaporthe oryzae. Overexpression of Os Serk1 in OsSerk2-silenced lines complements phenotypes associated with brassinosteroid(BR) signaling defects, but not the disease resistance phenotype mediated by Xa21. In yeast, OsSERK1 interacts with itself forming homodimers, and also interacts with the kinase domains of OsSERK2 and BRI1, respectively.OsSERK1 is a functional protein kinase capable of auto-phosphorylation in vitro. We conclude that, whereas OsSERK2 regulates both rice development and immunity, OsSERK1 functions in rice development but not immunity to Xoo and M. oryzae.

引用

页码：1179 / 1192

页数：14

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