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The transcription factor OsPIL13 regulates leaf inclination in rice by modulating brassinosteroid homeostasis.

Plant physiology - 2 Mar 2026

Tao Wenqing, Gu Pengyuan, Wu Yaoyao, Wang Daojian, Gu Changxiao, Chang Yuyao, Zhang Jingwen, Xu Guohua, Zhang Yali

Abstract excerpt

A plant architecture with upright leaves promotes canopy photosynthesis, thus enhancing biomass production. Brassinosteroid (BR) biosynthesis has been positively linked with rice leaf angle; however, the underlying molecular mechanisms remain obscure. Here, we report that OsPIL13, a bHLH transcription factor, modulates rice (Oryza sativa L.) leaf angle by orchestrating BR biosynthesis. Phenotypic and cytological...

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PMID: 41623233
DOI: 10.1093/plphys/kiag024

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026.

Related research

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Research trail→

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The transcription factor OsPIL13 regulates leaf inclination in rice by modulating brassinosteroid homeostasis.PMID 41623233Read ↗

The basic helix-loop-helix transcription factor OsBLR1 regulates leaf angle in rice via brassinosteroid signalling.Semantic proximity Read ↗

Modulation of Rice Leaf Angle and Grain Size by Expressing OsBCL1 and OsBCL2 under the Control of OsBUL1 Promoter.Semantic proximity Read ↗

OsbHLH92, in the noncanonical brassinosteroid signaling pathway, positively regulates leaf angle and grain weight in rice.Semantic proximity Read ↗

A bHLH protein, OsBIM1, positively regulates rice leaf angle by promoting brassinosteroid signaling.Semantic proximity Read ↗

The rice R2R3 MYB transcription factor FOUR LIPS connects brassinosteroid signaling to lignin deposition and leaf angle.Semantic proximity Read ↗

The transcription factor OsWRKY36 regulates leaf angle in rice by modulating brassinosteroid signaling.Semantic proximity Read ↗

Genome-wide association studies reveal that members of bHLH subfamily 16 share a conserved function in regulating flag leaf angle in rice (Oryza sativa).Semantic proximity Read ↗

The auxin response factor OsARF12 modulates rice leaf angle via affecting shoot gravitropism.Semantic proximity Read ↗

Exploration of the signaling pathway involving OsCSN8 in regulating the leaf angle of rice.Semantic proximity Read ↗

BLA1 Affects Leaf Angles by Altering Brassinosteroid Biosynthesis in Rice (Oryza sativa L.).Semantic proximity Read ↗

Loose Plant Architecture1 (LPA1) determines lamina joint bending by suppressing auxin signalling that interacts with C-22-hydroxylated and 6-deoxo brassinosteroids in rice.Semantic proximity Read ↗

The auxin response factor, OsARF19, controls rice leaf angles through positively regulating OsGH3-5 and OsBRI1.Semantic proximity Read ↗

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