UV-B responses in the spotlight: Dynamic photoreceptor interplay and cell-type specificity.

Autor: Depaepe T; Laboratory of Functional Plant Biology, Department of Biology, Ghent University, Ghent, Belgium., Vanhaelewyn L; Laboratory of Functional Plant Biology, Department of Biology, Ghent University, Ghent, Belgium.; Department of Agricultural Economics, Ghent University, Coupure Links 653 B-9000, Ghent, Belgium., Van Der Straeten D; Laboratory of Functional Plant Biology, Department of Biology, Ghent University, Ghent, Belgium.
Jazyk: angličtina
Zdroj: Plant, cell & environment [Plant Cell Environ] 2023 Nov; Vol. 46 (11), pp. 3194-3205. Date of Electronic Publication: 2023 Aug 09.
DOI: 10.1111/pce.14680
Abstrakt: Plants are constantly exposed to a multitude of external signals, including light. The information contained within the full spectrum of light is perceived by a battery of photoreceptors, each with specific and shared signalling outputs. Recently, it has become clear that UV-B radiation is a vital component of the electromagnetic spectrum, guiding growth and being crucial for plant fitness. However, given the large overlap between UV-B specific signalling pathways and other photoreceptors, understanding how plants can distinguish UV-B specific signals from other light components deserves more scrutiny. With recent evidence, we propose that UV-B signalling and other light signalling pathways occur within distinct tissues and cell-types and that the contribution of each pathway depends on the type of response and the developmental stage of the plant. Elucidating the precise site(s) of action of each molecular player within these signalling pathways is key to fully understand how plants are able to orchestrate coordinated responses to light within the whole plant body. Focusing our efforts on the molecular study of light signal interactions to understand plant growth in natural environments in a cell-type specific manner will be a next step in the field of photobiology.
(© 2023 John Wiley & Sons Ltd.)
Databáze: MEDLINE
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