摘要
自体吞噬是一种细胞内自我降解系统,它能将植物细胞内溶物运输至液泡并降解。自体吞噬可划分为内溶物的包裹、运输至液泡、内溶物的降解和降解产物的重新利用几个连续步骤。关于细胞自体吞噬的认识主要来源于酵母、人类、小鼠、果蝇和线虫等生物,以拟南芥等为代表的植物细胞自体吞噬的研究虽然刚刚开始,但也取得了一些标志性的成果,且近十几年来已迅速成为植物研究领域的热点之一。自体吞噬在植物体内具有多种生理和病理作用,如对饥饿的适应、细胞内蛋白质和细胞器的清除、种子中贮藏蛋白的积累、抵制微生物、细胞死亡和胁迫响应等。本文在介绍自体吞噬形成过程的基础上,着重探讨了自体吞噬在植物生长发育中的功能,并对植物中自体吞噬的研究方向进行了展望。
Autophagy is an intracellular degradation system in which cytoplasmic components are taken up into the vacuole for degradation in plants.The process of autophagy consists of several sequential steps：sequestration,transport to vacuole,degradation,and utilization of degradation products.Most of autophagy research focused on yeast,human,mouse,drosophila and nematode.While the research of autophagy in higher plants,such as Arabidopsis,just began,some significant results have been achieved,and rapidly become one of the hot research fields of plant over the last decade.Autophagy has a greater variety of physiological and pathophysiological roles in plants,such as starvation adaptation,intracellular protein and organelle clearance,deposition of seed storage proteins,rejection of microorganisms,cell death,and stress responses.In this review,based on the introduction of the process of autophagy,we focused on the roles of autophagy in plants growth and development,and put forward some suggestion for future research.
出处
《西北植物学报》
CAS
CSCD
北大核心
2010年第10期2141-2149,共9页
Acta Botanica Boreali-Occidentalia Sinica
基金
国家自然科学基金(30800593
31072072)
兰州大学中央高校基本科研业务费专项资金(lzujbky-2009-4)
国家基础研究发展计划(2007CB108904)资助
