Mechanisms involved in drought stress tolerance triggered by rhizobia strains in wheat

Barquero, Marcia; Poveda Arias, Jorge; Laureano Marín, Ana M.; Ortiz Liébana, Noemí; Brañas, Javier; González Andrés, Fernando

Publication:
Mechanisms involved in drought stress tolerance triggered by rhizobia strains in wheat

dc.contributor.author	Barquero, Marcia
dc.contributor.author	Poveda Arias, Jorge
dc.contributor.author	Laureano Marín, Ana M.
dc.contributor.author	Ortiz Liébana, Noemí
dc.contributor.author	Brañas, Javier
dc.contributor.author	González Andrés, Fernando
dc.contributor.department	Institute for Multidisciplinary Research in Applied Biology - IMAB	en
dc.date.accessioned	2023-04-03T07:07:50Z
dc.date.available	2023-04-03T07:07:50Z
dc.date.issued	2022
dc.date.updated	2023-04-03T06:50:05Z
dc.description.abstract	Rhizobium spp. is a well-known microbial plant biostimulant in non-legume crops, but little is known about the mechanisms by which rhizobia enhance crop productivity under drought stress. This work analyzed the mechanisms involved in drought stress alleviation exerted by Rhizobium leguminosarum strains in wheat plants under water shortage conditions. Two (LBM1210 and LET4910) of the four R. leguminosarum strains significantly improved the growth parameters (fresh and dry aerial weight, FW and DW, respectively), chlorophyll content, and relative water content (RWC) compared to a non-inoculated control under water stress, providing values similar to or even higher for FW (+4%) and RWC (+2.3%) than the non-inoculated and non-stressed control. Some other biochemical parameters and gene expression explain the observed drought stress alleviation, namely the reduction of MDA, H2O2 (stronger when inoculating with LET4910), and ABA content (stronger when inoculating with LBM1210). In agreement with these results, inoculation with LET4910 downregulated DREB2 and CAT1 genes in plants under water deficiency and upregulated the CYP707A1 gene, while inoculation with LBM1210 strongly upregulated the CYP707A1 gene, which encodes an ABA catabolic enzyme. Conversely, from our results, ethylene metabolism did not seem to be involved in the alleviation of drought stress exerted by the two strains, as the expression of the CTR1 gene was very similar in all treatments and controls. The obtained results regarding the effect of the analyzed strains in alleviating drought stress are very relevant in the present situation of climate change, which negatively influences agricultural production.	en
dc.description.sponsorship	This project has been financially supported by European Commission - BBI JU project “Bio-based FERtilising products as the best practice for agricultural management SusTainability (BFERST)”. H2020-BBI-JTI-2018, Grant agreement ID: 837583. NO-L was granted a fellowship from the FPU program by the Spanish Ministry of Education with code (FPU 17/04201).	en
dc.format.mimetype	application/pdf	en
dc.format.mimetype	application/zip	en
dc.identifier.citation	Barquero, M., Poveda, J., Laureano-Marín, A. M., Ortiz-Liébana, N., Brañas, J., & González-Andrés, F. (2022). Mechanisms involved in drought stress tolerance triggered by rhizobia strains in wheat. Frontiers in Plant Science, 13, 1036973. https://doi.org/10.3389/fpls.2022.1036973	en
dc.identifier.doi	10.3389/fpls.2022.1036973
dc.identifier.issn	1664-462X
dc.identifier.uri	https://academica-e.unavarra.es/handle/2454/45013
dc.language.iso	eng	en
dc.publisher	Frontiers Media	en
dc.relation.ispartof	Frontiers in Plant Science, 13, 1-14	en
dc.relation.projectID	info:eu-repo/grantAgreement/European Commission/Horizon 2020 Framework Programme/837583	en
dc.relation.projectID	info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/FPU 17%2F04201	en
dc.relation.publisherversion	https://doi.org/10.3389/fpls.2022.1036973
dc.rights	© 2022 Barquero, Poveda, Laureano-Marín, Ortiz-Liébana, Brañas and González-Andrés. This is an openaccess article distributed under the terms of the Creative Commons Attribution License (CC BY).	en
dc.rights.accessRights	info:eu-repo/semantics/openAccess
dc.rights.uri	http://creativecommons.org/licenses/by/4.0/
dc.subject	Abiotic stress	en
dc.subject	Drought	en
dc.subject	Gene expression	en
dc.subject	PGPR	en
dc.subject	Rhizobium	en
dc.title	Mechanisms involved in drought stress tolerance triggered by rhizobia strains in wheat	en
dc.type	info:eu-repo/semantics/article
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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relation.isAuthorOfPublication.latestForDiscovery	85d07390-8e9d-444e-a969-87fff3f1497e