Mostrar el registro sencillo del ítem

Artículo

dc.creatorGarcía Domínguez, Marioes
dc.creatorMuro Pastor, Alicia Maríaes
dc.creatorReyes Rosa, José Carloses
dc.creatorFlorencio Bellido, Francisco Javieres
dc.date.accessioned2017-07-24T10:56:52Z
dc.date.available2017-07-24T10:56:52Z
dc.date.issued2000-01
dc.identifier.citationGarcía Domínguez, M., Muro Pastor, A.M., Reyes Rosa, J.C. y Florencio Bellido, F.J. (2000). Light-dependent regulation of cyanobacterial phytochrome expression. Journal of Bacteriology, 182 (1), 38-44.
dc.identifier.issn0021-9193 (impreso)es
dc.identifier.issn1098-5530 (electronico)es
dc.identifier.urihttp://hdl.handle.net/11441/62999
dc.description.abstractA histidine kinase protein (Cph1) with sequence homology and spectral characteristics very similar to those of the plant phytochrome has been recently identified in the cyanobacterium Synechocystis sp. strain PCC 6803. Cph1 together with Rcp1 (a protein homologue to the response regulator CheY) forms a light-regulated two-component system whose function is presently unknown. Levels of cph1 rcp1 mRNA increase in the dark and decrease upon reillumination. A dark-mediated increase in cph1 rcp1 mRNA levels was inhibited by the presence of glucose, but not by inhibition of the photosynthetic electron flow. The half-life of cph1 rcp1 transcript in the light was about fourfold shorter than in the dark, indicating that control of cph1 rcp1 transcript stability is one of the mechanisms by which light regulates expression of the cyanobacterial phytochrome. After 15 min of darkness, 3-min pulses of red, blue, green, and far-red light were equally efficient in decreasing the cph1 rcp1 mRNA levels. Red light downregulation was not reversed by far-red light, suggesting that cph1 rcp1 mRNA levels are not controlled by a phytochrome-like photoreceptor. Furthermore, a Synechocystis strain containing an H538R Cph1 point mutation, unable to phosphorylate Rcp1, shows normal light-dark regulation of the cph1 rcp1 transcript levels. Our data suggest a role of cyanobacterial phytochrome in the control of processes required for adaptation in light-dark and dark-light transitions.es
dc.description.sponsorshipDGESID PB97-0732es
dc.description.sponsorshipJunta de Andalucía CV1-0112es
dc.formatapplication/pdfes
dc.language.isoenges
dc.publisherAmerican Society for Microbiologyes
dc.relation.ispartofJournal of Bacteriology, 182 (1), 38-44.
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.titleLight-dependent regulation of cyanobacterial phytochrome expressiones
dc.typeinfo:eu-repo/semantics/articlees
dcterms.identifierhttps://ror.org/03yxnpp24
dc.type.versioninfo:eu-repo/semantics/publishedVersiones
dc.rights.accessrightsinfo:eu-repo/semantics/openAccesses
dc.contributor.affiliationUniversidad de Sevilla. Departamento de Bioquímica Vegetal y Biología Moleculares
dc.relation.projectIDPB97-0732es
dc.relation.projectIDCV1-0112es
idus.format.extent7 p.es
dc.journaltitleJournal of Bacteriologyes
dc.publication.volumen182es
dc.publication.issue1es
dc.publication.initialPage38es
dc.publication.endPage44es
dc.contributor.funderJunta de Andalucía

FicherosTamañoFormatoVerDescripción
Light-Dependent.pdf1015.KbIcon   [PDF] Ver/Abrir  

Este registro aparece en las siguientes colecciones

Mostrar el registro sencillo del ítem

Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Excepto si se señala otra cosa, la licencia del ítem se describe como: Attribution-NonCommercial-NoDerivatives 4.0 Internacional