扩展蛋白与果实衰老的关系

A Role for Expansins in Fruit Softing and Mealiness

扩展蛋白(expansins)是近年来发现的植物细胞壁中特有的一类蛋白,它们的基础作用是缓释细胞壁结构网中的张力,使细胞壁变得松弛,在果实的生长发育中,起着极为重要的作用。叙述了扩展蛋白的特性,基因家族,作用机制,生理功能,其中重点论述了扩展蛋白与果实软化絮败的关系。

Expansins is a special group proteins of plant cell wall discovered in recent years.Their basic action is relaxing the stress of the matrix to loose the cell wall.They also play an important role in fruit growing.The authors expound the characteristic,gene family,model of action and physiological function.The emphasis is the relation of expansins and fruit softing and mealiness.