论文部分内容阅读
水稻灌浆是关系到品质和产量的重要生物学过程,其颖果形态变化和蕴含的生理生化过程受到了广泛的关注和详细的研究。然而,这些形态、生理生化过程背后的分子机制特别是对形成颖果最关键的原料蔗糖的运输过程还有很多问题需要回答。最近一些研究显示运输寡糖的SWEET蛋白和蔗糖-质子同向运输蛋白SUT一起在水稻颖果灌浆过程中的蔗糖运输环节发挥了重要作用,特别是它们在母体与子代细胞之间的蔗糖传递方面有不可替代的功能。这些研究为彻底阐明水稻颖果形成中的同化物运输途径和机制提供了关键证据,同时也为将来利用相关基因并调控其表达以提高水稻产量和品质奠定了分子基础。
Rice grain filling is an important biological process that is related to quality and yield. Caryopsis morphology and physiological and biochemical processes have received extensive attention and detailed research. However, there are still many problems to be answered in the molecular mechanism behind these morphological, physiological and biochemical processes, especially in the transportation of sucrose, the most crucial raw material for caryopsis. Recent studies have shown that the SWEET protein of transport oligosaccharides and the sucrose-proton symporter SUT play an important role in the transport of sucrose during rice grain filling, in particular their sucrose transfer between maternal and progeny cells There are irreplaceable functions. These studies provide key evidence for the thorough elucidation of assimilate transport pathways and mechanisms in the formation of rice clumps and provide the molecular basis for the future use of related genes and their regulation to improve rice yield and quality.