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Rice UDP-glucose pyrophosphorylase1 is essential for pollen callose deposition and its cosuppression results in a new type of thermosensitive genic male sterility.

The Plant cell - 1 Mar 2007

Chen Rongzhi, Zhao Xiao, Shao Zhe, Wei Zhe, Wang Yuanyuan, Zhu Lili, Zhao Jie, Sun Mengxiang, He Ruifeng, He Guangcun

Abstract excerpt

UDP-glucose pyrophosphorylase (UGPase) catalyzes the reversible production of glucose-1-phosphate and UTP to UDP-glucose and pyrophosphate. The rice (Oryza sativa) genome contains two homologous UGPase genes, Ugp1 and Ugp2. We report a functional characterization of rice Ugp1, which is expressed throughout the plant, with highest expression in florets, especially in pollen during anther development. Ugp1...

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Identifiers

PMID: 17400897
DOI: 10.1105/tpc.106.044123
PMCID: PMC1867369

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-07.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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