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dc.creatorGotor Martínez, Ceciliaes
dc.creatorLaureano Marín, Ana Maríaes
dc.creatorMoreno González, María Inmaculadaes
dc.creatorAroca Aguilar, Ángeleses
dc.creatorGarcía Fernández, Irenees
dc.creatorRomero González, Luis Carloses
dc.date.accessioned2017-11-02T17:56:26Z
dc.date.available2017-11-02T17:56:26Z
dc.date.issued2015
dc.identifier.citationGotor, C., Laureano Marín, A.M., Moreno, I., Aroca, Á., García, I. y Romero, L.C. (2015). Signaling in the plant cytosol: cysteine or sulfide?. Amino Acids, 47, 2155-2164.
dc.identifier.issn1438-2199es
dc.identifier.urihttp://hdl.handle.net/11441/65617
dc.description.abstractCysteine (Cys) is the first organic compound containing reduced sulfur that is synthesized in the last stage of plant photosynthetic assimilation of sulfate. It is a very important metabolite not only because it is crucial for the structure, function and regulation of proteins but also because it is the precursor molecule of an enormous number of sulfur-containing metabolites essential for plant health and development. The biosynthesis of Cys is accomplished by the sequential reaction of serine acetyltransferase (SAT) and O-acetylserine(thiol)synthase (OASTL). In Arabidopsis thaliana, the analysis of specific mutants of members of the SAT and OASTL families has demonstrated that the cytosol is the compartment where the bulk of Cys synthesis takes place and that the cytosolic OASTL enzyme OAS-A1 is the responsible enzyme. Another member of the OASTL family is DES1, a novel L-cysteine desulfhydrase that catalyzes the desulfuration of Cys to produce sulfide, thus acting in a manner opposite to that of OAS-A1. Detailed studies of the oas-a1 and des1 null mutants have revealed the involvement of the DES1 and OAS-A1 proteins in coordinate regulation of Cys homeostasis and the generation of sulfide in the cytosol for signaling purposes. Thus, the levels of Cys in the cytosol strongly affect plant responses to both abiotic and biotic stress conditions, while sulfide specifically generated from the degradation of Cys negatively regulates autophagy induced in different situations. In conclusion, modulation of the levels of Cys and sulfide is likely critical for plant performance.es
dc.formatapplication/pdfes
dc.language.isoenges
dc.publisherSpringeres
dc.relation.ispartofAmino Acids, 47, 2155-2164.
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectAbiotic stresses
dc.subjectArabidopsises
dc.subjectAutophagyes
dc.subjectBiotic stresses
dc.subjectSulfur metabolismes
dc.titleSignaling in the plant cytosol: cysteine or sulfide?es
dc.typeinfo:eu-repo/semantics/articlees
dcterms.identifierhttps://ror.org/03yxnpp24
dc.type.versioninfo:eu-repo/semantics/acceptedVersiones
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses
dc.relation.publisherversionhttp://dx.doi.org/10.1007/s00726-014-1786-zes
dc.identifier.doi10.1007/s00726-014-1786-zes
idus.format.extent26 p.es
dc.journaltitleAmino Acidses
dc.publication.volumen47es
dc.publication.initialPage2155es
dc.publication.endPage2164es

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