Temporal and spatial frameworks supporting plant responses to vegetation proximity.

Autor:	Pastor-Andreu P; Centre for Research in Agricultural Genomics (CRAG), CSIC-IRTA-UAB-UB, Barcelona 08193, Spain., Moreno-Romero J; Centre for Research in Agricultural Genomics (CRAG), CSIC-IRTA-UAB-UB, Barcelona 08193, Spain.; Institute for Plant Molecular and Cell Biology (IBMCP), CSIC-UPV, València 46022, Spain.; Departament de Bioquimica I Biologia Molecular, Universitat Autònoma de Barcelona, Barcelona 08193, Spain., Urdin-Bravo M; Institute for Plant Molecular and Cell Biology (IBMCP), CSIC-UPV, València 46022, Spain., Palau-Rodriguez J; Institute for Plant Molecular and Cell Biology (IBMCP), CSIC-UPV, València 46022, Spain., Paulisic S; Centre for Research in Agricultural Genomics (CRAG), CSIC-IRTA-UAB-UB, Barcelona 08193, Spain., Kastanaki E; Group of Plant Vascular Development, Swiss Federal Institute of Technology (ETH) Zurich, Zurich CH-8092, Switzerland., Vives-Peris V; Departament de Biologia, Bioquimica I Ciències Naturals, Universitat Jaume I, Castelló de la Plana 12071, Spain., Gomez-Cadenas A; Departament de Biologia, Bioquimica I Ciències Naturals, Universitat Jaume I, Castelló de la Plana 12071, Spain., Esteve-Codina A; Functional Genomics Team, Centro Nacional de Análisis Genómico (CNAG), Universitat de Barcelona, Barcelona 08028, Spain., Martín-Mur B; Functional Genomics Team, Centro Nacional de Análisis Genómico (CNAG), Universitat de Barcelona, Barcelona 08028, Spain., Rodríguez-Villalón A; Group of Plant Vascular Development, Swiss Federal Institute of Technology (ETH) Zurich, Zurich CH-8092, Switzerland., Martínez-García JF; Centre for Research in Agricultural Genomics (CRAG), CSIC-IRTA-UAB-UB, Barcelona 08193, Spain.; Institute for Plant Molecular and Cell Biology (IBMCP), CSIC-UPV, València 46022, Spain.
Jazyk:	angličtina
Zdroj:	Plant physiology [Plant Physiol] 2024 Nov 04; Vol. 196 (3), pp. 2048-2063.
DOI:	10.1093/plphys/kiae417
Abstrakt:	After the perception of vegetation proximity by phytochrome photoreceptors, shade-avoider plants initiate a set of responses known as the shade avoidance syndrome (SAS). Shade perception by the phytochrome B (phyB) photoreceptor unleashes the PHYTOCHROME INTERACTING FACTORs and initiates SAS responses. In Arabidopsis (Arabidopsis thaliana) seedlings, shade perception involves rapid and massive changes in gene expression, increases auxin production, and promotes hypocotyl elongation. Other components, such as phyA and ELONGATED HYPOCOTYL 5, also participate in the shade regulation of the hypocotyl elongation response by repressing it. However, why and how so many regulators with either positive or negative activities modulate the same response remains unclear. Our physiological, genetic, cellular, and transcriptomic analyses showed that (i) these components are organized into 2 main branches or modules and (ii) the connection between them is dynamic and changes with the time of shade exposure. We propose a model for the regulation of shade-induced hypocotyl elongation in which the temporal and spatial functional importance of the various SAS regulators analyzed here helps to explain the coexistence of differentiated regulatory branches with overlapping activities. Competing Interests: Conflict of interest statement. None declared. (© The Author(s) 2024. Published by Oxford University Press on behalf of American Society of Plant Biologists.)
Databáze:	MEDLINE
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