The SnRK1A Protein Kinase Plays a Key Role in Sugar Signaling during Germination and Seedling Growth of Rice W
نویسندگان
چکیده
Chung-An Lu,a,1 Chih-Cheng Lin,b,1 Kuo-Wei Lee,b Jyh-Long Chen,b Li-Fen Huang,b Shin-Lon Ho,c Hsin-Ju Liu,b Yue-Ie Hsing,d and Su-May Yub,2 a Department of Life Sciences, National Central University, Jhongli City, Taoyuan County 320, Taiwan, Republic of China b Institute of Molecular Biology, Academia Sinica, Nankang, Taipei 115, Taiwan, Republic of China c Department of Agronomy, National Cha-Yi University, Cha-Yi City 600, Taiwan, Republic of China d Institute of Plant and Microbial Biology, Academia Sinica, Nankang, Taipei 115, Taiwan, Republic of China
منابع مشابه
The SnRK1A protein kinase plays a key role in sugar signaling during germination and seedling growth of rice.
Sugars repress alpha-amylase expression in germinating embryos and cell cultures of rice (Oryza sativa) through a sugar response complex (SRC) in alpha-amylase gene promoters and its interacting transcription factor MYBS1. The Snf1 protein kinase is required for the derepression of glucose-repressible genes in yeast. In this study, we explored the role of the yeast Snf1 ortholog in rice, SnRK1,...
متن کاملSnRK1A-interacting negative regulators modulate the nutrient starvation signaling sensor SnRK1 in source-sink communication in cereal seedlings under abiotic stress.
In plants, source-sink communication plays a pivotal role in crop productivity, yet the underlying regulatory mechanisms are largely unknown. The SnRK1A protein kinase and transcription factor MYBS1 regulate the sugar starvation signaling pathway during seedling growth in cereals. Here, we identified plant-specific SnRK1A-interacting negative regulators (SKINs). SKINs antagonize the function of...
متن کاملInterference with oxidative phosphorylation enhances anoxic expression of rice α-amylase genes through abolishing sugar regulation
Rice has the unique ability to express alpha-amylase under anoxic conditions, a feature that is critical for successful anaerobic germination and growth. Previously, anaerobic conditions were shown to up-regulate the expression of Amy3 subfamily genes (Amy3B/C, 3D, and 3E) in rice embryos. These genes are known to be feedback regulated by the hydrolytic products of starchy endosperm such as the...
متن کاملGPT2: a glucose 6-phosphate/phosphate translocator with a novel role in the regulation of sugar signalling during seedling development
BACKGROUND AND AIMS GPT2, a glucose 6-phosphate/phosphate translocator, plays an important role in environmental sensing in mature leaves of Arabidopsis thaliana. Its expression has also been detected in arabidopsis seeds and seedlings. In order to examine the role of this protein early in development, germination and seedling growth were studied. METHODS Germination, greening and establishme...
متن کاملBiochemical Aspects of Protein Changes in Seed Physiology and Germination
Seed storage proteins are synthesized as sources of carbon, nitrogen and sulfur for the next generation of plants. Reactive oxygen species serve as second messengers for signal transduction; however, molecular targets of oxidant signaling have not been defined. Here, many researchers showes that ligand–receptor mediated signaling promotes reactive oxygen species– dependent protein carbonylation...
متن کامل