Photoreceptor - mediated kin recognition in plants

Although cooperative interactions among kin have been established in a variety of biological systems, their occurrence in plants remains controversial. Plants of Arabidopsis thaliana were grown in rows of either a single or multiple accessions. Plants recognized kin neighbours and horizontally reori...

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Detalles Bibliográficos
Autor principal: Crepy, María A.
Otros Autores: Casal, Jorge José
Formato: Artículo
Lenguaje:Inglés
Materias:
SHADE AVOIDANCE
PHYTOCHROME
PHOTOTROPIN
KIN
FITNESS
CRYPTOCHROME
COMPETITION
Acceso en línea:http://ri.agro.uba.ar/files/intranet/articulo/2015crepy.pdf
LINK AL EDITOR
Aporte de:Registro referencial: Solicitar el recurso aquí
Biblioteca Central (FAUBA) de Universidad de Buenos Aires
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245 0 0 |a Photoreceptor - mediated kin recognition in plants 
520 |a Although cooperative interactions among kin have been established in a variety of biological systems, their occurrence in plants remains controversial. Plants of Arabidopsis thaliana were grown in rows of either a single or multiple accessions. Plants recognized kin neighbours and horizontally reoriented leaf growth, a response not observed when plants were grown with nonkin. Plant kin recognition involved the perception of the vertical red-far-red light and blue light profiles. Disruption of the light profiles, mutations at the PHYTOCHROME B, CRYPTOCHROME 1 or 2, or PHOTOTROPIN 1 or 2 photoreceptor genes or mutations at the TRYPTOPHAN AMINOTRANSFERASE OF ARABIDOPSIS1 gene required for auxin [growth hormone] synthesis impaired the response. The leaf - position response increases plant self - shading, decreases mutual shading between neighbours and increases fitness. Light signals from neighbours are known to shape a more competitive plant body. Here we show that photosensory receptors mediate cooperative rather than competitive interactions among kin neighbours by reducing the competition for local pools of resources. 
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653 0 |a SHADE AVOIDANCE 
653 0 |a PHYTOCHROME 
653 0 |a PHOTOTROPIN 
653 0 |a KIN 
653 0 |a FITNESS 
653 0 |a CRYPTOCHROME 
653 0 |a COMPETITION 
700 1 |9 792  |a Casal, Jorge José 
773 |t New Phytologist  |g Vol.205, no.1 (2015), p.329-338, grafs., fot. 
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