Nitrospina bacteria in a rocky intertidal habitat (Quintay Bay, central Chile)

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dc.contributor.authorYepsen, Daniela V.
dc.contributor.authorLevipan, Héctor A.
dc.contributor.authorMolina, Verónica
dc.date.accessioned2023-08-08T16:57:19Z
dc.date.available2023-08-08T16:57:19Z
dc.date.issued2019-03
dc.descriptionIndexación Scopuses
dc.description.abstractNitrospina bacteria are among the most important nitrite oxidizers in coastal and open-ocean environments, but the relevance of the genus contrasts with the scarceness of information on their ecophysiology and habitat range. Thus far, Nitrospina bacteria have been the only nitrite oxidizers detected at high abundance in Chilean coastal waters. These levels are often higher than at other latitudes. In this study, the abundance of 16S-rRNA gene transcripts of Nitrospina (hereafter just transcripts) was measured by reverse transcription quantitative PCR in a rocky intertidal gradient and compared with the nearshore counterpart off central Chile (~33°S). Rocky pond transcripts were also compared with the taxonomic composition of the macrobiota and bacterioplankton (by 16S-rRNA gene-based T-RFLP) in the intertidal gradient. Transcripts increased from warmer, saltier, and low-nitrite ponds in the upper intertidal zone (19.5 ± 1.6°C, 39.0 ± 1.0 psu, 0.98 ± 0.17 μmol/L) toward cooler, less salty, and high-nitrite ponds (17.8 ± 2.6°C, 37.7 ± 0.82 psu, 1.23 ± 0.21 μmol/L) from middle and low zones. These varied from ~1,000 up to 62,800 transcripts. This increasing trend in the number of transcripts toward the lower zone was positively associated with the Shannon's diversity index for the macrobiota (r =.81, p [removed]es
dc.identifier.citationMicrobiology AccessVolume 8, Issue 3 March 2019 Article number e00646es
dc.identifier.doi10.1002/mbo3.646en
dc.identifier.issn20458827
dc.identifier.urihttps://repositorio.unab.cl/xmlui/handle/ria/52311
dc.language.isoenes
dc.publisherMicrobiologyes
dc.subject16S-rRNA gene transcriptes
dc.subjectintertidal bacteriaes
dc.subjectnitrite oxidationes
dc.subjectNitrospinaes
dc.subjectrocky intertidal habitates
dc.subjectstress tolerancees
dc.titleNitrospina bacteria in a rocky intertidal habitat (Quintay Bay, central Chile)es
dc.typeArtículoes
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