REVEILLE2 thermosensitive splicing a molecular basis for the integration of nocturnal temperature information by the Arabidopsis circadian clock

REVEILLE2 thermosensitive splicing : a molecular basis for the integration of nocturnal temperature information by the Arabidopsis circadian clock

© 2023 The Authors New Phytologist © 2023 New Phytologist Foundation.

Bibliographische Detailangaben
Veröffentlicht in:The New phytologist. - 1979. - 241(2023), 1 vom: 30. Jan., Seite 283-297
1. Verfasser: James, Allan B (VerfasserIn)
Weitere Verfasser: Sharples, Chantal, Laird, Janet, Armstrong, Emily May, Guo, Wenbin, Tzioutziou, Nikoleta, Zhang, Runxuan, Brown, John W S, Nimmo, Hugh G, Jones, Matthew A
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2024
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article Arabidopsis alternative splicing chilling circadian isoform switch signaling temperature Arabidopsis Proteins CIR1 protein, Arabidopsis
Beschreibung
Zusammenfassung:© 2023 The Authors New Phytologist © 2023 New Phytologist Foundation.
Cold stress is one of the major environmental factors that limit growth and yield of plants. However, it is still not fully understood how plants account for daily temperature fluctuations, nor how these temperature changes are integrated with other regulatory systems such as the circadian clock. We demonstrate that REVEILLE2 undergoes alternative splicing after chilling that increases accumulation of a transcript isoform encoding a MYB-like transcription factor. We explore the biological function of REVEILLE2 in Arabidopsis thaliana using a combination of molecular genetics, transcriptomics, and physiology. Disruption of REVEILLE2 alternative splicing alters regulatory gene expression, impairs circadian timing, and improves photosynthetic capacity. Changes in nuclear gene expression are particularly apparent in the initial hours following chilling, with chloroplast gene expression subsequently upregulated. The response of REVEILLE2 to chilling extends our understanding of plants immediate response to cooling. We propose that the circadian component REVEILLE2 restricts plants responses to nocturnal reductions in temperature, thereby enabling appropriate responses to daily environmental changes
Beschreibung:Date Completed 16.12.2023
Date Revised 16.12.2023
published: Print-Electronic
Citation Status MEDLINE
ISSN:1469-8137
DOI:10.1111/nph.19339