PIF4转录因子调控植物热形态建成研究进展

Research progress of PIF4 transcription factors participating in plant thermomorphogenesis

热形态建成是植物在长期进化中产生的适应性性状。叶柄和节间伸长、叶片偏上生长有助于增强蒸腾作用,提高植物对高温的适应性。研究表明,光敏色素互作因子PIF4通过整合光照、昼夜节律和激素信号调控植物热形态建成。本文从这三方面介绍了近年来国内外对于PIF4在热形态建成方面的研究进展,旨在为后续工作提供一些提供参考。此外,本文也提出了本领域需要进一步研究的科学问题,试图为解释PIF4调控热形态建成的分子机理提供新的研究信息。

Thermomorphogenesis is an adaptive trait produced by plants during long term evolution.Elongation of petioles and internodes and upward growth of leaves can enhance transpiration and improve the adaptability of plants to high ambient temperature.Phytochrome interacting factor 4(PIF4)regulates plant thermomorphogenesis by integrating light,circadian rhythm and hormone signals.This article introduced research progress of PIF4 in thermomorphogenesis from three aspects,in order to provide reference for cultivate heat resistant varieties by molecular method.In addition,we proposed some scientific issues required for further investigations in this field to provide a research clue for understanding the molecular mechanisms of thermomorphogenesis regulated by PIF4.