Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/84351
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | A fertilization-independent developmental program triggers partial fruit development and senescence processes in pistils of Arabidopsis |
Autor: | Carbonell-Bejerano, Pablo CSIC ORCID; Úrbez, Cristina CSIC ORCID; Carbonell-Gisbert, Juan CSIC ORCID; Granell, Antonio CSIC ORCID; Pérez-Amador, Miguel A. CSIC ORCID | Fecha de publicación: | 2010 | Editor: | American Society of Plant Biologists | Citación: | Plant Physiology 154(1): 163-172 (2010) | Resumen: | The pistil is the specialized plant organ that enables appropriate pollination and ovule fertilization, after which it undergoes growth and differentiation to become a fruit. However, in most species, if ovules are not fertilized around anthesis the pistil irreversibly loses its growth capacity. We used physiological, molecular, and transcriptomic tools to characterize the postanthesis development of the unfertilized Arabidopsis (Arabidopsis thaliana) pistil. Surprisingly, developmental processes that have been previously described in developing Arabidopsis fruits, such as the collapse of the adaxial epidermis, differentiation of a sclerenchyma layer in the adaxial subepidermis and the dehiscence zone, and valve dehiscence, were also observed in the unfertilized pistil. We determined that senescence is first established in the transmitting tract, stigma, and ovules immediately after anthesis, and that the timing of senescence in the stigma and ovules correlates with the loss of fruit-set responsiveness of the pistil to pollen and the hormone gibberellin (GA), respectively. Moreover, we showed that mutants with altered ovule development have impaired fruit-set response to the GA gibberellic acid, which further indicates that the presence of viable ovules is required for fruit-set responsiveness to GAs in the unfertilized pistil. Our data suggest that a fertilizationindependent developmental program controls many of the processes during post-anthesis development, both in unfertilized pistils and seeded fruits, and point to a key role of the ovule in the capacity of pistils to undergo fruit set in response to GA. © 2010 American Society of Plant Biologists. | Descripción: | Free via Open: Open Access articles can be viewed online without a subscription. | Versión del editor: | http://dx.doi.org/10.1104/pp.110.160044 | URI: | http://hdl.handle.net/10261/84351 | DOI: | 10.1104/pp.110.160044 | Identificadores: | doi: 10.1104/pp.110.160044 issn: 0032-0889 e-issn: 1532-2548 |
Aparece en las colecciones: | (IBMCP) Artículos (CNB) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
A fertilization-independent.pdf | 1,22 MB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
PubMed Central
Citations
25
checked on 11-abr-2024
SCOPUSTM
Citations
51
checked on 21-abr-2024
WEB OF SCIENCETM
Citations
49
checked on 25-feb-2024
Page view(s)
367
checked on 24-abr-2024
Download(s)
273
checked on 24-abr-2024
Google ScholarTM
Check
Altmetric
Altmetric
Artículos relacionados:
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.