逆境诱导植物开花的研究进展

Progress of stress-induced flowering in plants

植物在长期的进化过程中形成了对环境改变的适应机制。在逆境条件下,例如干旱、高盐、低温、强光、弱光、紫外线等,植物会提前开花结实以尽早完成其生命周期,这种生物学现象被称为"逆境诱导的开花"。植物的这种避逆应激反应不但在进化上具有非常重要的生物学意义,而且对农业生产也具有重要的指导意义。逆境诱导植物开花与光周期、春化、环境温度、自主途径、赤霉素和年龄等开花途径的分子调控机制不同,有其自身的特点。文中对逆境诱导植物开花的研究历史、代谢调控以及分子机制等进行了阐述,并展望了未来的研究方向。

Plants tend to flower earlier if placed under stress conditions.Those stress factors include drought,high salinity,low temperature,high-or low-intensity light,and ultraviolet light.This phenomenon has been called stress-induced flowering.Stress-induced plant flowering might be helpful for species preservation.Thus,stress-induced flowering might have biological significance and should be considered as important as other plant flowering control strategy.Here,history of stress-induced flowering,metabolic regulation and molecular regulation mechanisms in plants were reviewed.Potential perspective was discussed.