Low fluence ultraviolet-B promotes ultraviolet resistance 8-modulated flowering in Arabidopsis

Zioutopoulou, A., Patitaki, E., O'Donnell, L. and Kaiserli, E. (2022) Low fluence ultraviolet-B promotes ultraviolet resistance 8-modulated flowering in Arabidopsis. Frontiers in Plant Science, 13, 840720. (doi: 10.3389/fpls.2022.840720) (PMID:35432431) (PMCID:PMC9009151)

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Publisher's URL: https://www.frontiersin.org/articles/10.3389/fpls.2022.840720/full


Ultraviolet-B (UV-B) irradiation (280–320 nm) is an integral part of sunlight and a pivotal environmental cue that triggers various plant responses, from photoprotection to photomorphogenesis and metabolic processes. UV-B is perceived by ULTRAVIOLET RESISTANCE 8 (UVR8), which orchestrates UV-B signal transduction and transcriptional control of UV-B-responsive genes. However, there is limited information on the molecular mechanism underlying the UV-B- and UVR8-dependent regulation of flowering time in plants. Here, we investigate the role of UV-B and UVR8 in photoperiodic flowering in Arabidopsis thaliana. Our findings suggest that UV-B controls photoperiodic flowering in an ecotype-specific manner and that UVR8 acts as a negative regulator of UV-B-induced flowering. Overall, our research shows that UV-B modulates flowering initiation through the action of UVR8 at the transcriptional level.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Patitaki, Ms Eirini and Zioutopoulou, Ms Anna and O'Donnell, Miss Liz and Kaiserli, Dr Eirini
Authors: Zioutopoulou, A., Patitaki, E., O'Donnell, L., and Kaiserli, E.
College/School:College of Medical Veterinary and Life Sciences > School of Life Sciences
College of Medical Veterinary and Life Sciences > School of Molecular Biosciences
Journal Name:Frontiers in Plant Science
Publisher:Frontiers Media
ISSN (Online):1664-462X
Copyright Holders:Copyright © 2022 Zioutopoulou, Patitaki, O’Donnell and Kaiserli
First Published:First published in Frontiers in Plant Science 13: 840720
Publisher Policy:Reproduced under a Creative Commons License

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
171989Transcriptional regulation of plant growth in nuclear microdomainsEirini KaiserliBiotechnology and Biological Sciences Research Council (BBSRC)BB/M023079/1Institute of Molecular, Cell & Systems Biology