[Tuan-hua David Ho] Mitochondrial AOX1a and an H2O2 Feed-Forward Signalling Loop Regulate Flooding Tolerance in Rice

Academician Tuan-hua David Ho and his team discovered that, under flooding stress, rice AOX1a in mitochondria promotes the conversion of deleterious reactive oxygen species (ROS) into H2O2. AOX1a and H2O2 form a mutually reinforcing feed-forward signalling loop that enhances root development and photosynthetic performance, thereby improving grain yield. These breakthrough findings have important implications for both basic research and agricultural biotechnology. The study was published in Plant Biotechnology Journal (Nguyen et al., 2025).

Article source: https://onlinelibrary.wiley.com/doi/full/10.1111/pbi.14504