OsBGLU19 and OsBGLU23 regulate disease resistance to bacterial leaf streak in rice
OsBGLU19 and OsBGLU23 regulate disease resistance to bacterial leaf streak in rice
复制标题
OsBGLU19 和 OsBGLU23 调节水稻对细菌性叶斑病的抗病性
DOI：
10.1016/s2095-3119(18)62117-3
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发表时间：
2019-06-01
影响因子：
4.8
通讯作者：
Ding Xin-hua
中科院分区：
文献类型：
--
作者：
Li Bei-bei;Liu Ying-gao;Ding Xin-hua
beta-Glucosidase belongs to the glycoside hydrolase I family, which is widely present in multiple species and responds to various biotic and abiotic stresses. In rice, whether beta-glucosidase is involved in the interaction between plants and microorganisms is not clear. In this study, we found that the expression of several genes encoding beta-glucosidases, including OsBGLU19 and OsBGLU23, were upregulated after inoculation with Xanthomonas oryzae pv. oryzicola (Xoc) and downregulated after inoculation with X. oryzae pv. oryzae (Xoo). The respective insertion mutants of OsBGLU19 and OsBGLU23, bglu19 and bglu23, were more susceptible to Xoc infection. The expression of OsAOS2, a key gene in the jasmonic acid signal pathway, was dramatically downregulated after inoculation with Xoc in the bglu19 and bglu23 mutants. Simultaneously, the expression of downstream disease resistance-related genes, such as OsPR1a, OsPR5 and a key transcription factors OsWRKY72 were obviously downregulated. The resistance mediated by OsBGLU19 and OsBGLU23 to bacterial leaf streak is related to disease resistance-related genes above mentioned.
