Chloroplasts Modulate Elongation Responses to Canopy Shade by Retrograde Pathways Involving HY5 and Abscisic Acid
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Título
Chloroplasts Modulate Elongation Responses to Canopy Shade by Retrograde Pathways Involving HY5 and Abscisic AcidAutoría
Fecha de publicación
2019-02Editor
American Society of Plant BiologistsISSN
1532-298X; 1040-4651Cita bibliográfica
ORTIZ-ALCAIDE, Miriam, et al. Chloroplasts modulate elongation responses to canopy shade by retrograde pathways involving HY5 and abscisic acid. The Plant Cell, 2019, vol. 31, no 2, p. 384-398.Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
http://www.plantcell.org/content/31/2/384Versión
info:eu-repo/semantics/acceptedVersionResumen
Plants use light as energy for photosynthesis but also as a signal of competing vegetation. Using different concentrations of norflurazon and lincomycin, we found that the response to canopy shade in Arabidopsis ... [+]
Plants use light as energy for photosynthesis but also as a signal of competing vegetation. Using different concentrations of norflurazon and lincomycin, we found that the response to canopy shade in Arabidopsis (Arabidopsis thaliana) was repressed even when inhibitors only caused a modest reduction in the level of photosynthetic pigments. High inhibitor concentrations resulted in albino seedlings that were unable to elongate when exposed to shade, in part due to attenuated light perception and signaling via phytochrome B and phytochrome-interacting factors. The response to shade was further repressed by a retrograde network with two separate nodes represented by the transcription factor LONG HYPOCOTYL 5 and the carotenoid-derived hormone abscisic acid. The unveiled connection among chloroplast status, light (shade) signaling, and developmental responses should contribute to achieve optimal photosynthetic performance under light-changing conditions. [-]
Publicado en
The Plant Cell, 2019, 31 (2)Proyecto de investigación
This work was supported by the Spanish Ministry of Science, Innovation, and Universities (MICINN grants BIO2014‐59895‐P, BIO2014-59092-P, BIO2015-71703-REDT, BIO2017-90877-REDT, BIO2017-85316-R, and BIO2017-84041-P), the Generalitat de Catalunya (grants 2017SGR-1211 to J.F.M.G. and 2017SGR-710 to M.R.C.), the Generalitat de Catalunya CERCA Programme (to the Centre for Research in Agricultural Genomics), the Japan Society for the Promotion of Science (KAKENHI grant JP-15H04389 to A.N.), the Spanish Ministry of Economy and Finance Severo Ochoa Programme for Centres of Excellence in R&D 2016–2019 (grant SEV‐2015‐0533), Spanish Ministry of Economy and Finance (MINECO PhD fellowship BES-2012-052597 to M.O.A.), and Mexican Consejo Nacional de Ciencia y Tecnología (MINECO PhD fellowship 421688 and SEP “Beca Complemento” to E.L.).Derechos de acceso
http://rightsstatements.org/vocab/CNE/1.0/
info:eu-repo/semantics/openAccess
info:eu-repo/semantics/openAccess
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