禾谷类作物种子糊粉层细胞程序性死亡

Advances in programmed cell death in cereal aleurone

细胞程序性死亡(PCD)是一种由特定基因控制的、主动的、有序的细胞自发死亡过程。通过研究禾谷类作物糊粉层在种子萌发过程中的变化,可以证明糊粉层PCD是禾谷类种子萌发过程的一个关键性事件。本文从禾谷类作物糊粉层PCD的特征、植物激素与禾谷类作物糊粉层PCD的关系、活性氧协同激素在糊粉层PCD过程中的作用及NO、CO气体信号分子对延迟糊粉层细胞死亡的效应等方面对禾谷类作物糊粉层PCD的研究进展进行综述。

Programmed cell death（PCD）is an active and ordered death process regulated by specific genes and commonly presents in normal growth and development of plants. Recent reports suggest that PCD plays a key role in the germination of cereal crops. The aleurone layer of cereal grains undergoes PCD fol- lowing germination. This article summarized research progress in the characters of cereal aleurone PCD,the relationship between hormone and cereal aleurone cell death, the cooperation of reactive oxygen species （ROS）with plant hormone in cereal aleurone cell death and the effects of nitric oxide（NO）,carbon monox- ide（CO）on delaying the process of aleurone cell death.