Variability of nitrifying communities in surface coastal waters of the Eastern South Pacific (similar to 36 degrees S)

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dc.contributor.authorLevipan, Hector A.
dc.contributor.authorMolina, Veronica
dc.contributor.authorAnguita, Cristobal
dc.contributor.authorRain Franco, Angel
dc.contributor.authorBelmar, Lucy
dc.contributor.authorFernandez, Camila
dc.date.accessioned2024-01-10T13:09:54Z
dc.date.available2024-01-10T13:09:54Z
dc.date.issued2016
dc.description.abstractWe report the seasonal and single-diurnal variability of potentially active members of the prokaryote community in coastal surface waters off central Chile and the relationship between nitrifiers and solar radiation by combining 16S cDNA-based pyrosequencing, RTqPCR of specific gene markers for nitrifiers (amoA, for general AOA, AOA-A, AOA-B, Nitrosopumilus maritimus and beta-AOB; and 16S rRNA gene for Nitrospina- like NOB), and solar irradiance measurements. We also evaluated the effects of artificial UVA-PAR and PAR spectra on nitrifiers by RT-qPCR. All nitrifiers (except AOA-B ecotype) were detected via RTqPCR but AOA was the only group detected by pyrosequencing. Results showed high variability in their transcriptional levels during the day which could be associated to sunlight intensity thresholds in winter although AOA and Nitrospina-like NOB transcript number were also potentially related with environmental substrate availability. Only N. maritimus amoA transcripts showed a significant negative correlation with solar irradiances in both periods. During springsummer, Nitrospina transcripts decreased at higher sunlight intensities, whereas the opposite was found during winter under natural (in situ) and artificial light experiments. In summary, a nitrifying community with variable tolerance to solar radiation is responsible for daily nitrification, and was particularly diverse during winter in the study area.
dc.description.funderFONDECYT
dc.description.funderFONDAP-INCAR center
dc.description.funderCOPAS SA
dc.description.funderCONICYT
dc.description.funderFrench embassy in Chile
dc.fechaingreso.objetodigital2024-05-28
dc.format.extent14 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1111/1758-2229.12448
dc.identifier.issn1758-2229
dc.identifier.pubmedidMEDLINE:27487247
dc.identifier.urihttps://doi.org/10.1111/1758-2229.12448
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/77707
dc.identifier.wosidWOS:000395002300040
dc.information.autorucCiencias Biológicas;Belmar L;S/I;237772
dc.issue.numero5
dc.language.isoen
dc.nota.accesocontenido parcial
dc.pagina.final864
dc.pagina.inicio851
dc.publisherWILEY
dc.revistaENVIRONMENTAL MICROBIOLOGY REPORTS
dc.rightsacceso restringido
dc.subjectHUMBOLDT CURRENT SYSTEM
dc.subjectOXYGEN MINIMUM ZONE
dc.subjectAMMONIA-OXIDIZING ARCHAEA
dc.subjectUPWELLING AREA
dc.subjectCENTRAL CHILE
dc.subjectTEMPORAL VARIABILITY
dc.subjectNITRITE OXIDATION
dc.subjectDIFFERENTIAL PHOTOINHIBITION
dc.subjectCOMPLETE NITRIFICATION
dc.subjectEUPHOTIC ZONE
dc.subject.ods13 Climate Action
dc.subject.ods14 Life Below Water
dc.subject.odspa13 Acción por el clima
dc.subject.odspa14 Vida submarina
dc.titleVariability of nitrifying communities in surface coastal waters of the Eastern South Pacific (similar to 36 degrees S)
dc.typeartículo
dc.volumen8
sipa.codpersvinculados237772
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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