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Article

The cysteine protease PAI1 acts as a quantitative metabolic coordinator of amino acid flux for pollen maturation and anther dehiscence in rice.

Plant physiology - 1 Sept 2026

Tian Jingfei, He Juan, Xu Yibo, Bao Jinlin, Wei Jianxin, Zhao Wenfeng, Shen Zejun, Wei Zihan, Wu Minghang, Wang Pengpeng, Mo Jun, Luo Jijing, Qin Baoxiang

Abstract excerpt

The coordination of pollen maturation and anther dehiscence is essential for cereal fertility, yet the metabolic mechanisms linking these processes remain poorly understood. Here, we demonstrate that the rice cysteine protease PAI1 (Pollen Anther Integrator 1) functions as a quantitative metabolic coordinator during rice male reproduction. Unlike canonical cysteine protease mutants that exhibit complete male...

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Topics

Oryza
Pollen
Amino Acids
Plant Proteins
Gene Expression Regulation, Plant
Cysteine Proteases

Methodology Data sources Editorial policy Privacy Delete account & data About Contact Helena Bioinformatics

Flowers

Mutation

Endoplasmic Reticulum

Source

Identifiers

PMID: 42664490
DOI: 10.1093/plphys/kiag638

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 20 Oct 2026.

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