{"title":"Oxygen and redox regulation of plant thermomorphogenesis.","authors":"Michael J Considine, Christine H Foyer","doi":"10.1016/j.tplants.2026.09.006","DOIUrl":null,"url":null,"abstract":"<p><p>Plant thermomorphogenesis represents the adjustment of growth to warm ambient temperatures. The mechanism has long been organised around the transcription factor PHYTOCHROME-INTERACTING FACTOR 4 (PIF4) and the thermosensors that act upon it. Internal circadian control and external light intensity and quality have been the primary contexts that gate thermosensor-PIF signal transduction. Here, we argue that cellular oxygen and the reduction/oxidation (redox) state of the cell form additional layers that gate or calibrate thermosensing signal transduction. Current evidence points to discrete mechanisms across spatial or developmental contexts, through which oxygen availability or redox-dependent protein modifications control thermomorphogenic signalling, largely downstream of or independent of PIF4. Logical argument suggests that significant mechanisms and crosstalk between oxygen and redox signalling and thermosensing remain to be revealed.</p>","PeriodicalId":23264,"journal":{"name":"Trends in Plant Science","volume":" ","pages":""},"PeriodicalIF":21.2000,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Trends in Plant Science","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.1016/j.tplants.2026.09.006","RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"PLANT SCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
Plant thermomorphogenesis represents the adjustment of growth to warm ambient temperatures. The mechanism has long been organised around the transcription factor PHYTOCHROME-INTERACTING FACTOR 4 (PIF4) and the thermosensors that act upon it. Internal circadian control and external light intensity and quality have been the primary contexts that gate thermosensor-PIF signal transduction. Here, we argue that cellular oxygen and the reduction/oxidation (redox) state of the cell form additional layers that gate or calibrate thermosensing signal transduction. Current evidence points to discrete mechanisms across spatial or developmental contexts, through which oxygen availability or redox-dependent protein modifications control thermomorphogenic signalling, largely downstream of or independent of PIF4. Logical argument suggests that significant mechanisms and crosstalk between oxygen and redox signalling and thermosensing remain to be revealed.
期刊介绍：
Trends in Plant Science is the primary monthly review journal in plant science, encompassing a wide range from molecular biology to ecology. It offers concise and accessible reviews and opinions on fundamental plant science topics, providing quick insights into current thinking and developments in plant biology. Geared towards researchers, students, and teachers, the articles are authoritative, authored by both established leaders in the field and emerging talents.
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