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dc.contributor.authorCasero, María Cristinaes_ES
dc.contributor.authorAscaso, Carmenes_ES
dc.contributor.authorQuesada, Antonioes_ES
dc.contributor.authorMazur-Marzec, Hannaes_ES
dc.contributor.authorWierzchos, Jacekes_ES
dc.date.accessioned2021-03-03T12:01:47Z-
dc.date.available2021-03-03T12:01:47Z-
dc.date.issued2021-01-18-
dc.identifier.citationFrontiers in Microbiology 11: 614875 (2021)es_ES
dc.identifier.urihttp://hdl.handle.net/10261/232436-
dc.description.abstractCyanobacteria exposed to high solar radiation make use of a series of defense mechanisms, including avoidance, antioxidant systems, and the production of photoprotective compounds such as scytonemin. Two cyanobacterial strains of the genus Chroococcidiopsis from the Atacama Desert – which has one of the highest solar radiation levels on Earth- were examined to determine their capacity to protect themselves from direct photosynthetically active (PAR) and ultraviolet radiation (UVR): the UAM813 strain, originally isolated from a cryptoendolithic microhabitat within halite (NaCl), and UAM816 strain originally isolated from a chasmoendolithic microhabitat within calcite (CaCO3). The oxidative stress induced by exposure to PAR or UVR C PAR was determined to observe their short-term response, as were the long-term scytonemin production, changes in metabolic activity and ultrastructural damage induced. Both strains showed oxidative stress to both types of light radiation. The UAM813 strain showed a lower acclimation capacity than the UAM816 strain, showing an ever-increasing accumulation of reactive oxygen species (ROS) and a smaller accumulation of scytonemin. This would appear to reflect differences in the adaptation strategies followed to meet the demands of their different microhabitats.es_ES
dc.description.sponsorshipThis study was supported by grant PGC2018-094076-B-I00 from MCIU/AEI (Spain) and FEDER (UE). MC was supported by grant BES 2014-069106 from the Spanish Ministry of Science and Innovation (MCINN).es_ES
dc.language.isoenges_ES
dc.publisherFrontiers Mediaes_ES
dc.relationMICIU/ICTI2017-2020/PGC2018-094076-B-I00es_ES
dc.relationMINECO/ICTI2013-2016/BES 2014-069106es_ES
dc.relation.isversionofPublisher's versiones_ES
dc.rightsopenAccesses_ES
dc.subjectChroococcidiopsises_ES
dc.subjectEndolithices_ES
dc.subjectAtacamaes_ES
dc.subjectLightes_ES
dc.subjectScytonemines_ES
dc.titleResponse of Endolithic Chroococcidiopsis Strains From the Polyextreme Atacama Desert to Light Radiationes_ES
dc.typeartículoes_ES
dc.description.peerreviewedPeer reviewedes_ES
dc.relation.publisherversionhttps://www.frontiersin.org/articles/10.3389/fmicb.2020.614875/fulles_ES
dc.identifier.e-issn1664-302X-
dc.contributor.funderMinisterio de Ciencia e Innovación (España)es_ES
dc.contributor.funderMinisterio de Economía y Competitividad (España)es_ES
dc.relation.csices_ES
oprm.item.hasRevisionno ko 0 false*
dc.identifier.funderhttp://dx.doi.org/10.13039/501100004837es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100003329es_ES
dc.type.coarhttp://purl.org/coar/resource_type/c_6501es_ES
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.grantfulltextopen-
item.openairetypeartículo-
item.fulltextWith Fulltext-
item.languageiso639-1en-
item.cerifentitytypePublications-
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