Differential effect of free-air CO2 enrichment (FACE) in different organs and growth stages of two cultivars of durum wheat

Gámez Guzmán, Angie Lorena; Han, Xue; Aranjuelo Michelena, Iker

Publication:
Differential effect of free-air CO2 enrichment (FACE) in different organs and growth stages of two cultivars of durum wheat

dc.contributor.author	Gámez Guzmán, Angie Lorena
dc.contributor.author	Han, Xue
dc.contributor.author	Aranjuelo Michelena, Iker
dc.contributor.department	Agronomía, Biotecnología y Alimentación	es_ES
dc.contributor.department	Agronomia, Bioteknologia eta Elikadura	eu
dc.contributor.department	Ciencias	es_ES
dc.contributor.department	Zientziak	eu
dc.date.accessioned	2023-08-01T18:31:33Z
dc.date.available	2023-08-01T18:31:33Z
dc.date.issued	2023
dc.date.updated	2023-08-01T18:25:59Z
dc.description.abstract	Wheat is a target crop within the food security context. The responses of wheat plants under elevated concentrations of CO2 (e[CO2]) have been previously studied; however, few of these studies have evaluated several organs at different phenological stages simultaneously under free-air CO2 enrichment (FACE) conditions. The main objective of this study was to evaluate the effect of e[CO2] in two cultivars of wheat (Triumph and Norin), analyzed at three phenological stages (elongation, anthesis, and maturation) and in different organs at each stage, under FACE conditions. Agronomic, biomass, physiological, and carbon (C) and nitrogen (N) dynamics were examined in both ambient CO2 (a[CO2]) fixed at 415 µmol mol−1 CO2 and e[CO2] at 550 µmol mol−1 CO2. We found minimal effect of e[CO2] compared to a[CO2] on agronomic and biomass parameters. Also, while exposure to 550 µmol mol−1 CO2 increased the photosynthetic rate of CO2 assimilation (An), the current study showed a diminishment in the maximum carboxylation (Vc,max) and maximum electron transport (Jmax) under e[CO2] conditions compared to a[CO2] at physiological level in both cultivars. However, even if no significant differences were detected between cultivars on photosynthetic machinery, differential responses between cultivars were detected in C and N dynamics at e[CO2]. Triumph showed starch accumulation in most organs during anthesis and maturation, but a decline in N content was observed. Contrastingly, in Norin, a decrease in starch content during the three stages and an increase in N content was observed. The amino acid content decreased in grain and shells at maturation in both cultivars, which might indicate a minimal translocation from source to sink organs. These results suggest a greater acclimation to e[CO2] enrichment in Triumph than Norin, because both the elongation stage and e[CO2] modified the source–sink relationship. According to the differences between cultivars, future studies should be performed to test genetic variation under FACE technology and explore the potential of cultivars to cope with projected climate scenarios.	en
dc.description.sponsorship	This work was supported by the National Key Research and Development Project (2019YFA0607403) and the Marie Skłodowska-Curie actions funded by the European Commission (CropYQualT-CEC). The Agricultural Science and Technology Innovation Program of the Chinese Academy of Agricultural Sciences also supported this study.	en
dc.format.mimetype	application/pdf	en
dc.identifier.citation	Gámez, A. L., Han, X., Aranjuelo, I. (2023) Differential effect of free-air CO2 enrichment (FACE) in different organs and growth stages of two cultivars of durum wheat. Plants, 12(3), 1-11. https://doi.org/10.3390/plants12030686.	en
dc.identifier.doi	10.3390/plants12030686
dc.identifier.issn	2223-7747
dc.identifier.uri	https://academica-e.unavarra.es/handle/2454/45816
dc.language.iso	eng	en
dc.publisher	MDPI	en
dc.relation.ispartof	Plants 2023, 12(3), 686	en
dc.relation.publisherversion	https://doi.org/10.3390/plants12030686
dc.rights	© 2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license.	en
dc.rights.accessRights	Acceso abierto / Sarbide irekia	es
dc.rights.accessRights	info:eu-repo/semantics/openAccess	en
dc.rights.uri	http://creativecommons.org/licenses/by/4.0/
dc.subject	Free-air CO2 enrichment (FACE)	en
dc.subject	Phenology	en
dc.subject	Plant acclimation	en
dc.subject	Sink	en
dc.subject	Source	en
dc.subject	Wheat	en
dc.title	Differential effect of free-air CO2 enrichment (FACE) in different organs and growth stages of two cultivars of durum wheat	en
dc.type	Artículo / Artikulua	es
dc.type	info:eu-repo/semantics/article	en
dc.type.version	Versión publicada / Argitaratu den bertsioa	es
dc.type.version	info:eu-repo/semantics/publishedVersion	en
dspace.entity.type	Publication
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