Perception and signalling of light and temperature cues in plants

Light and temperature patterns are often correlated under natural plant growth conditions. In this review, we analyse the perception and signalling mechanisms shared by both these environmental cues and discuss the functional implications of their convergence to control plant growth. The first point...

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Otros Autores: Legris, Martina, Nieto, Cristina, Sellaro, Romina, Prat, Salomé, Casal, Jorge José
Formato: Artículo
Lenguaje:Inglés
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Acceso en línea:http://ri.agro.uba.ar/files/intranet/articulo/2017legris.pdf
LINK AL EDITOR
Aporte de:Registro referencial: Solicitar el recurso aquí
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245 1 0 |a Perception and signalling of light and temperature cues in plants 
520 |a Light and temperature patterns are often correlated under natural plant growth conditions. In this review, we analyse the perception and signalling mechanisms shared by both these environmental cues and discuss the functional implications of their convergence to control plant growth. The first point of integration is the phytochrome B (phyB) receptor, which senses light and temperature. Downstream of phyB, the signalling core comprises two branches, one involving PHYTOCHROME INTERACTING FACTOR 4 (PIF4) and the other CONSTITUTIVE PHOTOMORPHOGENIC 1 (COP1) and ELONGATED HYPOCOTYL 5 (HY5). The dynamics of accumulation and/or localization of each of these core signalling components depend on light and temperature conditions. These pathways are connected through COP1, which enhances the activity of PIF4. The circadian clock modulates this circuit, since EARLY FLOWERING 3 (ELF3), an essential component of the evening complex (EC), represses expression of the PIF4 gene and PIF4 transcriptional activity. Phytochromes are probably not the only entry point of temperature into this network, but other sensors remain to be established. The sharing of mechanisms of action for two distinct environmental cues is to some extent unexpected, as it renders these responses mutually dependent. There are nonetheless many ecological contexts in which such a mutual influence could be beneficial. 
650 |2 Agrovoc  |9 26 
653 |a PHYTOCHROME B 
653 |a PHYTOCHROME INTERACTING FACTOR 4 
653 |a EARLY FLOWERING 3 
653 |a CONSTITUTIVE PHOTOMORPHOGENIC 1 
653 |a DE-ETIOLATED1 
653 |a ELONGATED HYPOCOTYL 5 
700 1 |a Legris, Martina  |u Fundación Instituto Leloir, Instituto de Investigaciones Bioquímicas de Buenos Aires–CONICET, 1405 Buenos Aires, Argentina  |9 67326 
700 1 |a Nieto, Cristina  |u Departamento de Genética Molecular de Plantas, Centro Nacional de Biotecnología (CNB-CSIC), Campus de Cantoblanco, Darwin 3, 28049 Madrid, Spain  |9 67327 
700 1 |a Sellaro, Romina  |u IFEVA, Facultad de Agronomía, Universidad de Buenos Aires and CONICET, Av. San Martín 4453, 1417 Buenos Aires, Argentina  |9 67310 
700 1 |a Prat, Salomé  |u Departamento de Genética Molecular de Plantas, Centro Nacional de Biotecnología (CNB-CSIC), Campus de Cantoblanco, Darwin 3, 28049 Madrid, Spain  |9 67328 
700 1 |a Casal, Jorge José  |u IFEVA, Facultad de Agronomía, Universidad de Buenos Aires and CONICET, Av. San Martín 4453, 1417 Buenos Aires, Argentina. E-mail: casal@ifeva.edu.ar  |9 792 
773 |t The Plant Journal  |a Society for Experimental Biology  |g Vol.90, no.4 (2017), p.683-697, grafs., il. 
856 |f 2017legris  |i en reservorio  |q application/pdf  |u http://ri.agro.uba.ar/files/intranet/articulo/2017legris.pdf  |x ARTI201806 
856 |z LINK AL EDITOR  |u http://www.wiley.com 
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