Article
A glutamyl-tRNA reductase and its binding protein promote transitory starch biosynthesis and enhance grain quality and yield in rice.
Plant communications - 10 Nov 2025
Duan Yingqing, Li Xiaoxue, Ma Liuyang, Jiao Guiai, Cao Ruijie, Dong Nannan, Li Xinwei, Wang Zihang, Wang Ping, Tang Shaoqing, Wei Xiangjin, Hu Peisong
Abstract excerpt
Transitory starch in rice leaves is critical for temporary carbon storage, plant growth, and subsequent grain filling, yet the regulatory mechanisms underlying its biosynthesis remain poorly understood. Here, we found that Leaf Starch Deficiency 3 (LSD3), a rice glutamyl-tRNA reductase (GluTR), interacts with GluTR-binding protein (GluTRBP), which in turn associates with granule-bound starch synthase II (GBSSII),...
Topics
- Oryza
- Starch
- Plant Proteins
- Edible Grain
- Plant Leaves
- Starch Synthase
- Gene Expression Regulation, Plant
- Mutation