Titre
Shade avoidance in the context of climate change.
Type
article
Institution
UNIL/CHUV/Unisanté + institutions partenaires
Périodique
Auteur(s)
Casal, J.J.
Auteure/Auteur
Fankhauser, C.
Auteure/Auteur
Liens vers les personnes
Liens vers les unités
ISSN
1532-2548
Statut éditorial
Publié
Date de publication
2023-03-17
Volume
191
Numéro
3
Première page
1475
Dernière page/numéro d’article
1491
Peer-reviewed
Oui
Langue
anglais
Notes
Publication types: Journal Article
Publication Status: ppublish
Publication Status: ppublish
Résumé
When exposed to changes in the light environment caused by neighboring vegetation, shade-avoiding plants modify their growth and/or developmental patterns to access more sunlight. In Arabidopsis (Arabidopsis thaliana), neighbor cues reduce the activity of the photosensory receptors phytochrome B (phyB) and cryptochrome 1, releasing photoreceptor repression imposed on PHYTOCHROME INTERACTING FACTORs (PIFs) and leading to transcriptional reprogramming. The phyB-PIF hub is at the core of all shade-avoidance responses, whilst other photosensory receptors and transcription factors contribute in a context-specific manner. CONSTITUTIVELY PHOTOMORPHOGENIC1 is a master regulator of this hub, indirectly stabilizing PIFs and targeting negative regulators of shade avoidance for degradation. Warm temperatures reduce the activity of phyB, which operates as a temperature sensor and further increases the activities of PIF4 and PIF7 by independent temperature sensing mechanisms. The signaling network controlling shade avoidance is not buffered against climate change; rather, it integrates information about shade, temperature, salinity, drought, and likely flooding. We, therefore, predict that climate change will exacerbate shade-induced growth responses in some regions of the planet while limiting the growth potential in others.
PID Serval
serval:BIB_2DBCEA48BEE3
PMID
Open Access
Oui
Date de création
2023-01-17T07:45:14.981Z
Date de création dans IRIS
2025-05-20T20:41:43Z
Fichier(s)![Vignette d'image]()
En cours de chargement...
Nom
Casal-Fankhauser.pdf
Version du manuscrit
preprint
Licence
https://creativecommons.org/licenses/by/4.0
Taille
921.85 KB
Format
Adobe PDF
PID Serval
serval:BIB_2DBCEA48BEE3.P001
Somme de contrôle
(MD5):e7c4abad146c967a1ded2a98ea64c795