@article{Pei2026, 
author = {Mengtian Pei and Fan Yang and Xihong Li and Rongbin Zhao and Xinyue Liu and Huidi Liu and Guo-dong Lu},
title = {OsBSR1 increases rice blast immunity by suppressing the enzymatic activity of the sulfite oxidase OsSO1},
year = {2026},
journal = {The Crop Journal},
volume = {14},
number = {4},
pages = {1158-1167},
keywords = {Oryza sativa, Receptor-like cytoplasmic kinase, Sulfite oxidase, Immunity, Magnaporthe oryzae},
url = {https://www.sciopen.com/article/10.1016/j.cj.2026.02.018},
doi = {10.1016/j.cj.2026.02.018},
abstract = {The objective of this study was to determine how the rice receptor-like cytoplasmic kinase OsBSR1 positively regulates broad-spectrum disease resistance. Our results showed that OsBSR1 is induced upon infection by Magnaporthe oryzae and enhances rice immunity by negatively regulating the enzymatic activity of the sulfite oxidase OsSO1, while also affecting its stability. In agreement with this finding, overexpression of OsSO1 suppressed the reactive oxygen species burst, callose deposition, and defense gene expression, resulting in reduced resistance to M. oryzae. These results uncover a novel kinase–oxidase regulatory module underlying the coordination of immune responses and redox homeostasis in rice.}
}