论文部分内容阅读
海藻糖代谢和海藻糖-6-磷酸(T6P)信号途径在植物生长和发育过程中具有重要的调控作用。T6P是海藻糖的代谢前体,是植物响应碳元素可用性、调控生长发育的关键信号分子。植物体中除了自身的海藻糖合成途径外,由病原菌产生的海藻糖或T6P能够导致植物代谢和发育的重新编程。植物不同阶段的生长发育,包括胚胎发育、幼苗生长、成花诱导及叶片衰老等,都受T6P的调控。T6P信号的一个关键互作因子是蔗糖非发酵相关激酶1(SnRK1),T6P能够抑制SnRK1的催化活性,进而调控植物的生长和发育过程。
Trehalose metabolism and the trehalose-6-phosphate (T6P) signaling pathway play an important regulatory role in plant growth and development. T6P is the metabolic precursor of trehalose, which is the key signal molecule that plants respond to the availability of carbon and regulate the growth and development. In plants, in addition to its own trehalose synthesis pathway, trehalose or T6P produced by pathogenic bacteria can lead to reprogramming of plant metabolism and development. Plant growth and development at different stages, including embryonic development, seedling growth, flower induction and leaf senescence, are regulated by T6P. A key interaction factor of T6P signal is sucrose non-fermentative related kinase 1 (SnRK1). T6P can inhibit the catalytic activity of SnRK1 and then regulate plant growth and development.