AI Article Synopsis
- Plants exhibit phenotypic plasticity, allowing them to adapt their structure and development to varying environmental conditions, particularly through a process called thermomorphogenesis in response to higher temperatures.
- In Arabidopsis thaliana, the transcription factor PIF4 plays a crucial role in coordinating these morphological changes, influenced by different thermosensing mechanisms and regulators.
- The review discusses recent discoveries regarding the factors that modulate PIF4 expression and activity, and emphasizes the importance of organ- and tissue-specific responses in regulating thermomorphogenesis.
Article Abstract
Plants show remarkable phenotypic plasticity and are able to adjust their morphology and development to diverse environmental stimuli. Morphological acclimation responses to elevated ambient temperatures are collectively termed thermomorphogenesis. In Arabidopsis thaliana, morphological changes are coordinated to a large extent by the transcription factor PHYTOCHROME-INTERACTING FACTOR 4 (PIF4), which in turn is regulated by several thermosensing mechanisms and modulators. Here, we review recent advances in the identification of factors that regulate thermomorphogenesis of Arabidopsis seedlings by affecting PIF4 expression and PIF4 activity. We summarize newly identified thermosensing mechanisms and highlight work on the emerging topic of organ- and tissue-specificity in the regulation of thermomorphogenesis.
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| http://dx.doi.org/10.1016/j.pbi.2022.102231 | DOI Listing |
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