Frontiers in Plant Science (Jun 2017)

OsBSK1-2, an Orthologous of AtBSK1, Is Involved in Rice Immunity

  • Jing Wang,
  • Hui Shi,
  • Lian Zhou,
  • Chunfang Peng,
  • Dingyou Liu,
  • Xiaogang Zhou,
  • Wenguan Wu,
  • Junjie Yin,
  • Hai Qin,
  • Weiwei Ma,
  • Min He,
  • Weitao Li,
  • Jichun Wang,
  • Shigui Li,
  • Xuewei Chen

DOI
https://doi.org/10.3389/fpls.2017.00908
Journal volume & issue
Vol. 8

Abstract

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The brassinosteroid-SIGNALING KINASE (BSK) belongs to the receptor-like cytoplasmic kinase XII subgroup. BSK1 regulates development and immunity in Arabidopsis. However, the function of rice (Oryza sativa) BSK1 is largely unknown. Here, we report that the expression level of OsBSK1-2 is induced after a chitin or fagellin22 (flg22) treatment. Silencing OsBSK1-2 in rice results in compromised responses to chitin- or flg22-triggered immunity and resistance to Magnaporthe oryzae, but does not alter the plant’s architecture nor reduce plant responses to brassinosteroid signaling. Our study reveals that OsBSK1-2 functions as a major regulator in rice plant immunity.

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