The OsMYB103-OsGLOX5 module regulates tapetum degradation and male fertility in rice.

doi:10.1093/plphys/kiag608

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The OsMYB103-OsGLOX5 module regulates tapetum degradation and male fertility in rice.

Plant physiology - 4 Aug 2026

Liu Weichi, Yang Jie, Chen Yuan, Long Yongqiao, Lai Shuqing, Chen Kaiwen, Chen Yanlin, Rao Juan, Liang Junqiu, Yang Hongxia, Deng Yao, Wan Yingchun, Zhang Lin, He Guanghua, Jiang Yudong, Wang Nan, Shen Wenqiang, Feng Ping

Abstract excerpt

Anther tapetum degradation is essential for normal pollen formation in rice, yet the underlying regulatory network remains poorly understood. We isolated a novel male sterility rice mutant, osglox5, and confirmed that the target gene LOC_Os11g06870 encodes a glyoxal/galactose oxidase protein with both glyoxal oxidase (GLOX) and galactose oxidase (GAO) activities and is required for hydrogen peroxide (H2O2)...

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PMID: 42594180
DOI: 10.1093/plphys/kiag608

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