Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/187387
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | Chloride as a macronutrient increases water-use efficiency by anatomically driven reduced stomatal conductance and increased mesophyll diffusion to CO2 |
Autor: | Franco-Navarro, Juan D. CSIC ORCID CVN; Rosales Villegas, Miguel Á. CSIC ORCID ; Cubero Font, Paloma CSIC ORCID; Calvo, Purificación; Álvarez, Rosario; Díaz-Espejo, Antonio CSIC ORCID ; Colmenero Flores, José M. CSIC ORCID | Palabras clave: | Beneficial macronutrient Chloride nutrition Chloroplast Mesophyll diffusion conductance to CO2 Nicotiana tabacum Nitrate Photosynthesis Stomatal conductance Stomatal density Water-use efficiency |
Fecha de publicación: | 31-may-2019 | Editor: | Wiley-Blackwell | Citación: | Plant Journal 99(5): 815-831 (2019) | Resumen: | Chloride (Cl−) has been recently described as a beneficial macronutrient, playing specific roles in promoting plant growth and water-use efficiency (WUE). However, it is still unclear how Cl− could be beneficial, especially in comparison with nitrate (NO3−), an essential source of nitrogen that shares with Cl− similar physical and osmotic properties, as well as common transport mechanisms. In tobacco plants, macronutrient levels of Cl− specifically reduce stomatal conductance (gs) without a concomitant reduction in the net photosynthesis rate (AN). As stomata-mediated water loss through transpiration is inherent in the need of C3 plants to capture CO2, simultaneous increase in photosynthesis and WUE is of great relevance to achieve a sustainable increase in C3 crop productivity. Our results showed that Cl−-mediated stimulation of larger leaf cells leads to a reduction in stomatal density, which in turn reduces gs and water consumption. Conversely, Cl− improves mesophyll diffusion conductance to CO2 (gm) and photosynthetic performance due to a higher surface area of chloroplasts exposed to the intercellular airspace of mesophyll cells, possibly as a consequence of the stimulation of chloroplast biogenesis. A key finding of this study is the simultaneous improvement of AN and WUE due to macronutrient Cl− nutrition. This work identifies relevant and specific functions in which Cl− participates as a beneficial macronutrient for higher plants, uncovering a sustainable approach to improve crop yield. © 2019 The Authors The Plant Journal © 2019 John Wiley & Sons Ltd | Descripción: | 17 págins.- 8 figuras.- 113 referencias.- Additional Supporting Information may be found in the online version of this articlen https://doi.org/10.1111/tpj.14423 | Versión del editor: | http://dx.doi.org/10.1111/tpj.14423 | URI: | http://hdl.handle.net/10261/187387 | DOI: | 10.1111/tpj.14423 | ISSN: | 0960-7412 |
Aparece en las colecciones: | (IRNAS) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
Chloride_macronutrient_increases_water_use_(2019)_Postprint.pdf | 1,61 MB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
57
checked on 16-mar-2024
WEB OF SCIENCETM
Citations
48
checked on 27-feb-2024
Page view(s)
477
checked on 28-mar-2024
Download(s)
140
checked on 28-mar-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.