Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/63734
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | Mesophyll conductance to CO2 in Arabidopsis thaliana |
Autor: | Flexas, Jaume; Ortuño Gallud, M. Fernanda CSIC ORCID; Ribas-Carbó, Miquel; Díaz-Espejo, Antonio CSIC ORCID ; Flórez Sarasa, I. D. CSIC ORCID; Medrano Gil, Hipólito CSIC ORCID | Fecha de publicación: | 2007 | Editor: | Blackwell Publishing | Citación: | New Phytologist 175(3): 501-511 (2007) | Resumen: | The close rosette growth form, short petioles and small leaves of Arabidopsis thaliana make measurements with commercial gas exchange cuvettes difficult. This difficulty can be overcome by growing A. thaliana plants in 'ice-cream cone-like' soil pots. • This design permitted simultaneous gas exchange and chlorophyll fluorescence measurements from which the first estimates of mesophyll conductance to CO2 (gm) in Arabidopsis were obtained and used to determine photosynthetic limitations during plant ageing from c. 30-45 d. • Estimations of gm showed maximum values of 0.2 mol CO2 m-2 s-1 bar -1, lower than expected for a thin-leaved annual species. The parameterization of the response of net photosynthesis (AN) to chloroplast CO2 concentrations (Cc) yielded estimations of the maximum velocity of carboxylation (Vc,max_Cc) which were also lower than those reported for other annual species. As A. thaliana plants aged from 30 to 45 d, there was a 40% decline of AN that was entirely the result of increased diffusional limitations to CO2 transfer, with gm being the largest. • The results suggest that in A. thaliana AN is limited by low gm and low capacity for carboxylation. Decreased gm is the main factor involved in early age-induced photosynthetic decline. | URI: | http://hdl.handle.net/10261/63734 | DOI: | 10.1111/j.1469-8137.2007.02111.x | Identificadores: | doi: 10.1111/j.1469-8137.2007.02111.x issn: 0028-646X e-issn: 1469-8137 |
Aparece en las colecciones: | (IRNAS) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
accesoRestringido.pdf | 15,38 kB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
120
checked on 18-abr-2024
WEB OF SCIENCETM
Citations
113
checked on 24-feb-2024
Page view(s)
335
checked on 21-abr-2024
Download(s)
92
checked on 21-abr-2024
Google ScholarTM
Check
Altmetric
Altmetric
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.