Navigating PIFs and phytochromes: Key players in plant development and resilience to drought and other abiotic stresses

IF 6.8 Q1 PLANT SCIENCES

Plant Stress Pub Date : 2025-09-28 DOI:10.1016/j.stress.2025.101061

Sameera Karumannil , Tanveer Alam Khan , Waqas Rahim , Jaseena Pullaniyil , Anuradha T , Sunil Mundra , Mayank Anand Gururani

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引用次数: 0

Abstract

Plants frequently encounter abiotic stresses, with drought being a major limitation growth and productivity. Phytochromes, the primary red/far-red light receptors, perceive environmental signals and initiate downstream responses. Phytochrome-Interacting Factors (PIFs) act as key regulators by linking light signaling with hormonal pathways, particularly abscisic acid (ABA), to control stomatal conductance, antioxidant activity, and osmotic balance. PIFs contribute to drought tolerance by modulating stress-responsive gene expression and coordinating growth with adaptation. Isoform-specific roles have been observed in different species; for instance, NtPIF1 negatively affects drought tolerance in tobacco, whereas MdPIF3 enhances drought resistance in apple and Arabidopsis. These contrasting functions highlight the complexity of PIF-mediated stress regulation. Crosstalk with other hormone such as ethylene, jasmonic acid, brassinosteroids, and salicylic acid further shapes PIF activity and drought responses. This review highlights the role of phytochromes and PIFs in drought responses, their integration with ABA and other hormonal pathways, and their potential as targets to enhance crop resilience under adverse environmental conditions.

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导航pif和光敏色素：植物发育和对干旱和其他非生物胁迫的恢复能力的关键参与者

植物经常遇到非生物胁迫，干旱是限制生长和生产力的主要因素。光敏色素是主要的红光/远红光受体，感知环境信号并启动下游反应。光敏色素相互作用因子（pif）通过连接光信号与激素通路，特别是脱落酸（ABA），来控制气孔导度、抗氧化活性和渗透平衡。pif通过调节应激响应基因表达和协调生长与适应来促进抗旱性。在不同的物种中观察到异构体特异性作用；例如，NtPIF1负性影响烟草的抗旱性，而MdPIF3增强苹果和拟南芥的抗旱性。这些不同的功能突出了pif介导的应激调节的复杂性。与其他激素如乙烯、茉莉酸、油菜素类固醇和水杨酸的串声进一步塑造PIF活性和干旱反应。本文综述了光敏色素和pif在干旱响应中的作用，它们与ABA和其他激素通路的整合，以及它们作为增强作物在不利环境条件下抗逆性的靶点的潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Plant Stress PLANT SCIENCES-

CiteScore

5.20

自引率

8.00%

发文量

审稿时长

63 days

期刊介绍： The journal Plant Stress deals with plant (or other photoautotrophs, such as algae, cyanobacteria and lichens) responses to abiotic and biotic stress factors that can result in limited growth and productivity. Such responses can be analyzed and described at a physiological, biochemical and molecular level. Experimental approaches/technologies aiming to improve growth and productivity with a potential for downstream validation under stress conditions will also be considered. Both fundamental and applied research manuscripts are welcome, provided that clear mechanistic hypotheses are made and descriptive approaches are avoided. In addition, high-quality review articles will also be considered, provided they follow a critical approach and stimulate thought for future research avenues. Plant Stress welcomes high-quality manuscripts related (but not limited) to interactions between plants and: Lack of water (drought) and excess (flooding), Salinity stress, Elevated temperature and/or low temperature (chilling and freezing), Hypoxia and/or anoxia, Mineral nutrient excess and/or deficiency, Heavy metals and/or metalloids, Plant priming (chemical, biological, physiological, nanomaterial, biostimulant) approaches for improved stress protection, Viral, phytoplasma, bacterial and fungal plant-pathogen interactions. The journal welcomes basic and applied research articles, as well as review articles and short communications. All submitted manuscripts will be subject to a thorough peer-reviewing process.