Suppression of bacterial infection in rice by treatment with a sulfated peptide.
Suppression of bacterial infection in rice by treatment with a sulfated peptide.
复制标题
通过硫酸化肽处理抑制水稻细菌感染。
DOI：
10.1111/mpp.12368
复制
发表时间：
2016
影响因子：
4.9
通讯作者：
Ronald,PamelaC
中科院分区：
文献类型：
--
作者：
Wei,Tong;Chern,Mawsheng;Liu,Furong;Ronald,PamelaC
The rice XA21 receptor kinase confers robust resistance to bacterial blight disease caused byXanthomonas oryzaepv.oryzae(Xoo). A tyrosine‐sulfated peptide fromXoo, called RaxX, triggers XA21‐mediated immune responses, including the production of ethylene and reactive oxygen species and the induction of defence gene expression. It has not been tested previously whether these responses confer effective resistance toXoo. Here, we describe a newly established post‐inoculation treatment assay that facilitates investigations into the effect of the sulfated RaxX peptidein planta. In this assay, rice plants were inoculated with a virulent strain ofXooand then treated with the RaxX peptide 2 days after inoculation. We found that post‐inoculation treatment of XA21 plants with the sulfated RaxX peptide suppresses the development ofXooinfection in XA21 rice plants. The treated plants display restricted lesion development and reduced bacterial growth. Our findings demonstrate that exogenous application of sulfated RaxX activates XA21‐mediated immunityin planta, and provides a potential strategy for the control of bacterial disease in the field.
