Molecular and genetic control of plant thermomorphogenesis

Marcel Quint, Carolin Delker, Keara A Franklin, Philip Wigge, Karen Halliday, Martijn van Zanten

Research output: Contribution to journalArticle (Academic Journal)

138 Citations (Scopus)
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Abstract

Temperature is a major factor governing the distribution and seasonal behaviour of plants. Being sessile, plants are highly responsive to small differences in temperature and adjust their growth and development accordingly. The suite of morphological and architectural changes induced by high ambient temperatures, below the heat-stress range, is collectively called thermomorphogenesis. Understanding the molecular genetic circuitries underlying thermomorphogenesis is particularly relevant in the context of climate change, as this knowledge will be key to rational breeding for thermo-tolerant crop varieties. Until recently, the fundamental mechanisms of temperature perception and signalling remained unknown. Our understanding of temperature signalling is now progressing, mainly by exploiting the model plant Arabidopsis thaliana. The transcription factor PHYTOCHROME INTERACTING FACTOR 4 (PIF4) has emerged as a critical player in regulating phytohormone levels and their activity. To control thermomorphogenesis, multiple regulatory circuits are in place to modulate PIF4 levels, activity and downstream mechanisms. Thermomorphogenesis is integrally governed by various light signalling pathways, the circadian clock, epigenetic mechanisms and chromatin-level regulation. In this Review, we summarize recent progress in the field and discuss how the emerging knowledge in Arabidopsis may be transferred to relevant crop systems.
Original languageEnglish
Article number15190
Number of pages9
JournalNature Plants
Volume2
DOIs
Publication statusPublished - 6 Jan 2016

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    Quint, M., Delker, C., Franklin, K. A., Wigge, P., Halliday, K., & van Zanten, M. (2016). Molecular and genetic control of plant thermomorphogenesis. Nature Plants, 2, [15190]. https://doi.org/10.1038/nplants.2015.190