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The Pentatricopeptide Repeat Protein OsPPR7 Confers Cold Tolerance at the Booting Stage in Rice by Regulating ABA and

Changsheng Liu1, Jingwen Li1, Yantao Li1

  • 1Key Laboratory of Germplasm Enhancement, Physiology and Ecology of Food Crops in Cold Region, Ministry of Education, Northeast Agricultural University, Harbin, 150030, China.

Rice (New York, N.Y.)
|May 10, 2026
PubMed
Summary

We identified OsPPR7 as a key gene for rice cold tolerance. Its mutation causes pollen defects under cold stress, while its proper function ensures reproductive success and climate resilience.

Keywords:
OsPPR7ABA signalingBooting stageCold tolerancePollen fertility

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