Arabidopsis thaliana interaction with Ensifer meliloti can support plant growth under N-deficiency

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dc.catalogadoraba
dc.contributor.authorGrace Armijo
dc.contributor.authorTatiana Kraiser
dc.contributor.authorMaría P. Medina
dc.contributor.authorDiana E. Gras
dc.contributor.authorAna Zúñiga
dc.contributor.authorBernardo González
dc.contributor.authorRodrigo A. Gutiérrez
dc.date.accessioned2024-03-04T15:19:44Z
dc.date.available2024-03-04T15:19:44Z
dc.date.issued2020
dc.description.abstractNitrogen (N) is an essential macronutrient for plants. Some plant species obtain this nutrient by interacting with N-fixing bacteria. These beneficial interactions are well described in legumes but have also been observed in non-legume plant species that are unable to form root nodules. We studied the expanding role of beneficial plant-bacteria interactions for N-nutrition in the widely used model plant Arabidopsis thaliana. We found that the bacteria Ensifer meliloti enhanced A. thaliana growth under severe N-deficiency conditions, allowing plants to complete their life cycle. Our results showed that bacteria colonize the rhizosphere associated with the epidermis of the plant root. We also demonstrated that A. thaliana possesses genes that are critical for this beneficial interaction and are required for plant-growth promotion by E. meliloti under N-deficiency. This work shows association between A. thaliana and E. meliloti for plant nutrition under severe N-deficiency, and suggests that plants have conserved-molecular mechanisms to interact with N-fixing bacteria to procure N and escape adverse conditions. Under these circumstances, the supply of N via N-fixation is critical for survival, allowing the plant to complete its life cycle. Our findings provide a new framework and an experimental model system that expand our understanding of plant-rhizobia interactions for plant N-nutrition.
dc.fechaingreso.objetodigital2024-02-26
dc.format.extent30 páginas
dc.fuente.origenORCID
dc.identifier.doi10.1101/2020.07.25.221283
dc.identifier.urihttps://doi.org/10.1101/2020.07.25.221283
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/82479
dc.language.isoen
dc.nota.accesoContenido completo
dc.pagina.final30
dc.pagina.inicio1
dc.revistabioRxiv
dc.rightsacceso abierto
dc.rights.licenseCC BY-NC-ND 4.0 DEED Attribution-NonCommercial-NoDerivs 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectNitrogen fixation
dc.subjectArabidopsis thaliana
dc.subjectEnsifer meliloti
dc.subject.ddc570
dc.subject.deweyBiologíaes_ES
dc.titleArabidopsis thaliana interaction with Ensifer meliloti can support plant growth under N-deficiency
dc.typepreprint
sipa.codpersvinculados86782
sipa.trazabilidadORCID;2024-01-15
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