逆境诱导植物开花的研究进展

Progress of stress-induced flowering in plants

摘要:

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。本文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。

Abstract:

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.