dc.contributor.author | Morelli, Luca | |
dc.contributor.author | Paulišić, Sandi | |
dc.contributor.author | Qin, Wenting | |
dc.contributor.author | Iglesias-Sanchez, Ariadna | |
dc.contributor.author | Roig-Villanova, Irma | |
dc.contributor.author | Florez-Sarasa, Igor | |
dc.contributor.author | Rodriguez-Concepcion, Manuel | |
dc.contributor.author | Martinez-Garcia, Jaime F. | |
dc.contributor.other | Producció Vegetal | ca |
dc.date.accessioned | 2021-11-23T09:44:12Z | |
dc.date.available | 2021-11-23T09:44:12Z | |
dc.date.issued | 2021-05-07 | |
dc.identifier.citation | Morelli, Luca, Sandi Paulišić, Wenting Qin, Ariadna Iglesias-Sanchez, Irma Roig-Villanova, Igor Florez-Sarasa, Manuel Rodriguez-Concepcion, and Jaime F Martinez-Garcia. 2021. "Light Signals Generated By Vegetation Shade Facilitate Acclimation To Low Light In Shade-Avoider Plants". Plant Physiology 186 (4): 2137-2151. doi:10.1093/plphys/kiab206. | ca |
dc.identifier.issn | 0032-0889 | ca |
dc.identifier.uri | http://hdl.handle.net/20.500.12327/1410 | |
dc.description.abstract | When growing in search for light, plants can experience continuous or occasional shading by other plants. Plant proximity causes a decrease in the ratio of R to far-red light (low R:FR) due to the preferential absorbance of R light and reflection of FR light by photosynthetic tissues of neighboring plants. This signal is often perceived before actual shading causes a reduction in photosynthetically active radiation (low PAR). Here, we investigated how several Brassicaceae species from different habitats respond to low R:FR and low PAR in terms of elongation, photosynthesis, and photoacclimation. Shade-tolerant plants such as hairy bittercress (Cardamine hirsuta) displayed a good adaptation to low PAR but a poor or null response to low R:FR exposure. In contrast, shade-avoider species, such as Arabidopsis (Arabidopsis thaliana), showed a weak photosynthetic performance under low PAR but they strongly elongated when exposed to low R:FR. These responses could be genetically uncoupled. Most interestingly, exposure to low R:FR of shade-avoider (but not shade-tolerant) plants improved their photoacclimation to low PAR by triggering changes in photosynthesis-related gene expression, pigment accumulation, and chloroplast ultrastructure. These results indicate that low R:FR signaling unleashes molecular, metabolic, and developmental responses that allow shade-avoider plants (including most crops) to adjust their photosynthetic capacity in anticipation of eventual shading by nearby plants. | ca |
dc.format.extent | 1 | ca |
dc.language.iso | eng | ca |
dc.publisher | American Society of Plant Biologists | ca |
dc.relation.ispartof | Plant Physiology | ca |
dc.rights | Copyright © 2020 American Society of Plant Biologists. All rights reserved | ca |
dc.title | Light signals generated by vegetation shade facilitate acclimation to low light in shade-avoider plants | ca |
dc.type | info:eu-repo/semantics/article | ca |
dc.description.version | info:eu-repo/semantics/acceptedVersion | ca |
dc.rights.accessLevel | info:eu-repo/semantics/openAccess | |
dc.embargo.terms | cap | ca |
dc.subject.udc | 633 | ca |
dc.identifier.doi | https://doi.org/10.1093/plphys/kiab206 | ca |
dc.contributor.group | Genòmica i Biotecnologia | ca |