Advances in programmed cell death in cereal aleurone

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 following 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 monoxide（CO）on delaying the process of aleurone cell death．