Biotechnology Bulletin ›› 2022, Vol. 38 ›› Issue (10): 29-33.doi: 10.13560/j.cnki.biotech.bull.1985.2021-1475

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Phytochrome Interacting Factors Involving in Auxin-regulated Plant Growth and Development

QIAN Jing-jie(), LIN Su-meng, ZHANG Dong-ping, GAO Yong()   

  1. College of Bioscience and Biotechnology,Yangzhou University,Yangzhou 225009
  • Received:2021-11-25 Online:2022-10-26 Published:2022-11-11
  • Contact: GAO Yong E-mail:1483998555@qq.com;gaoyong@yzu.edu.cn

Abstract:

Phytochrome interacting factors(PIFs)belong to the basic helix-loop-helix(bHLH)transcription factor family,they interact specifically with the active conformer of phytochrome(PHYS)photoreceptors in the nucleus and are decomposed. PIFs participate in various signal transduction pathways to regulate plant growth and development,such as repressing seed germination,promoting seedling skotomorphogenesis and flowering time. As an important part of the regulation of intracellular signals,PIFs are widely involved in the signaling network mediated by external environmental factors(such as high temperature,light)and internal hormones(such as auxin,cytokinin,brassinolide,etc.). When the light signal and temperature change,PIFs are involved in auxin synthesis,transport and signaling to regulate plant growth and development. This review mainly introduces the advances of PIFs involving in auxin-regulated plant growth and development in recent years,and prospects the future research direction.

Key words: phytochrome interacting factors, auxin, light signal, growth and development