Cell wall composition strongly influences mesophyll conductance in gymnosperms
14 Pág.
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| Language: | English |
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Blackwell Publishing
2020-05-11
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| Subjects: | Cell wall composition, Cell wall thickness, Cellulose, Hemicellulose, Leaf anatomy, Mesophyll conductance, Pectin, Photosynthesis, |
| Online Access: | http://hdl.handle.net/10261/339341 http://dx.doi.org/10.13039/501100003329 http://dx.doi.org/10.13039/501100000780 https://api.elsevier.com/content/abstract/scopus_id/85085893406 |
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dig-inia-es-10261-3393412024-05-16T20:37:23Z Cell wall composition strongly influences mesophyll conductance in gymnosperms Carriquí, Marc Nadal, Miquel Clemente-Moreno, María José Gago, Jorge Miedes, Eva Flexas, Jaume Ministerio de Economía y Competitividad (España) European Commission Govern de les Illes Balears Carriquí, Marc [0000-0002-0153-2602] Nadal, Miquel [0000-0002-5434-7953] Clemente-Moreno, María José [0000-0003-3288-6312] Gago, Jorge [0000-0002-4293-0105] Miedes, Eva [0000-0003-2899-1494] Flexas, Jaume [0000-0002-3069-175X] Cell wall composition Cell wall thickness Cellulose Hemicellulose Leaf anatomy Mesophyll conductance Pectin Photosynthesis 14 Pág. Cell wall thickness is widely recognized as one of the main determinants of mesophyll conductance to CO2 (gm). However, little is known about the components that regulate effective CO2 diffusivity in the cell wall (i.e. the ratio between actual porosity and tortuosity, the other two biophysical diffusion properties of cell walls). The aim of this study was to assess, at the interspecific level, potential relationships between cell wall composition, cell wall thickness (Tcw) and gm. Gymnosperms constitute an ideal group to deepen these relationships, as they present, on average, the thickest cell walls within spermatophytes. We characterized the foliar gas exchange, the morphoanatomical traits related with gm, the leaf fraction constituted by cell walls and three main components of primary cell walls (hemicelluloses, cellulose and pectins) in seven gymnosperm species. We found that, although the relatively low gm of gymnosperms was mainly determined by their elevated Tcw, gm was also strongly correlated with cell wall composition, which presumably sets the final effective CO2 diffusivity. The data presented here suggest that (i) differences in gm are strongly correlated to the pectins to hemicelluloses and cellulose ratio in gymnosperms, and (ii) variations in cell wall composition may modify effective CO2 diffusivity in the cell wall to compensate the negative impact of thickened walls. We speculate that higher relative pectin content allows higher gm because pectins increase cell wall hydrophilicity and CO2 molecules cross the wall dissolved in water. This work was supported by the project CTM2014-53902-C2-1-P from the Ministerio de Economía y Competitividad (MINECO, Spain) and the ERDF (FEDER). MC acknowledges the predoctoral fellowship FPI/1700/2014 by Conselleria d’Educació, Cultura i Universitats (Govern de les Illes Balears) and European Social Fund, and MN acknowledges predoctoral fellowship BES-2015-072578 by Ministerio de Economía y Competitividad (MINECO, Spain) and European Social Fund. Peer reviewed 2023-11-21T11:59:33Z 2023-11-21T11:59:33Z 2020-05-11 artículo http://purl.org/coar/resource_type/c_6501 Plant Journal 103(4): 1372-1385 (2020) 0960-7412 http://hdl.handle.net/10261/339341 10.1111/tpj.14806 1365-313X http://dx.doi.org/10.13039/501100003329 http://dx.doi.org/10.13039/501100000780 32390169 2-s2.0-85085893406 https://api.elsevier.com/content/abstract/scopus_id/85085893406 en #PLACEHOLDER_PARENT_METADATA_VALUE# #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/MINECO//CTM2014-53902-C2-1-P/ES/BASES MECANICISTAS PARA EL TRADE-OFF ENTRE LA FOTOSINTESIS Y LA TOLERANCIA AL ESTRES: LLENAR LAS LAGUNAS DE LA BIOLOGIA EVOLUTIVA Y LA BIOTECNOLOGIA DE PLANTAS/ info:eu-repo/grantAgreement/MINECO//BES-2015-072578/ES/BES-2015-072578/ Centro de Biotecnología y Genómica de Plantas (CBGP) Publisher's version https://doi.org/10.1111/tpj.14806 Sí open Blackwell Publishing |
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Cell wall composition Cell wall thickness Cellulose Hemicellulose Leaf anatomy Mesophyll conductance Pectin Photosynthesis Cell wall composition Cell wall thickness Cellulose Hemicellulose Leaf anatomy Mesophyll conductance Pectin Photosynthesis |
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Cell wall composition Cell wall thickness Cellulose Hemicellulose Leaf anatomy Mesophyll conductance Pectin Photosynthesis Cell wall composition Cell wall thickness Cellulose Hemicellulose Leaf anatomy Mesophyll conductance Pectin Photosynthesis Carriquí, Marc Nadal, Miquel Clemente-Moreno, María José Gago, Jorge Miedes, Eva Flexas, Jaume Cell wall composition strongly influences mesophyll conductance in gymnosperms |
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14 Pág. |
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Ministerio de Economía y Competitividad (España) |
| author_facet |
Ministerio de Economía y Competitividad (España) Carriquí, Marc Nadal, Miquel Clemente-Moreno, María José Gago, Jorge Miedes, Eva Flexas, Jaume |
| format |
artículo |
| topic_facet |
Cell wall composition Cell wall thickness Cellulose Hemicellulose Leaf anatomy Mesophyll conductance Pectin Photosynthesis |
| author |
Carriquí, Marc Nadal, Miquel Clemente-Moreno, María José Gago, Jorge Miedes, Eva Flexas, Jaume |
| author_sort |
Carriquí, Marc |
| title |
Cell wall composition strongly influences mesophyll conductance in gymnosperms |
| title_short |
Cell wall composition strongly influences mesophyll conductance in gymnosperms |
| title_full |
Cell wall composition strongly influences mesophyll conductance in gymnosperms |
| title_fullStr |
Cell wall composition strongly influences mesophyll conductance in gymnosperms |
| title_full_unstemmed |
Cell wall composition strongly influences mesophyll conductance in gymnosperms |
| title_sort |
cell wall composition strongly influences mesophyll conductance in gymnosperms |
| publisher |
Blackwell Publishing |
| publishDate |
2020-05-11 |
| url |
http://hdl.handle.net/10261/339341 http://dx.doi.org/10.13039/501100003329 http://dx.doi.org/10.13039/501100000780 https://api.elsevier.com/content/abstract/scopus_id/85085893406 |
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