Rich bacterial assemblages from Maritime Antarctica (Potter Cove, South Shetlands) reveal several kinds of endemic and undescribed phylotypes / Una rica colección de bacterias marinas antárticas (Caleta Potter, islas Shetlands del Sur) revela diversos filotipos endémicos y previamente no descritos
Rev. argent. microbiol
;
46(3): 218-230, oct. 2014. ilus, tab
Article
Dans Anglais
| LILACS
| ID: lil-734583
RESUMEN
.
ABSTRACT
Bacterial richness in maritime Antarctica has been poorly described to date. Phylogenetic affiliation of seawater free-living microbial assemblages was studied from three locations near the Argentinean Jubany Station during two Antarctic summers. Sixty 16S RNA cloned sequences were phylogenetically affiliated to Alphaproteobacteria (30/60 clones), Gammaproteobacteria(19/60 clones), Betaproteobacteria and Cytophaga-Flavobacteriia- Bacteroides (CFB), which were (2/60) and (3/60) respectively. Furthermore, six out of 60 clones could not be classified. Both, Alphaproteobacteria and Gammaproteobacteria, showed several endemic and previously undescribed sequences. Moreover, the absence of Cyanobacteria sequences in our samples is remarkable. In conclusion, we are reporting a rich sequence assemblage composed of widely divergent isolates among themselves and distant from the most closely related sequences currently deposited in data banks.
Texte intégral:
Disponible
Indice:
LILAS (Amériques)
Sujet Principal:
Eau de mer
/
Bactéries
langue:
Anglais
Texte intégral:
Rev. argent. microbiol
Thème du journal:
Microbiologie
Année:
2014
Type:
Article
Pays d'affiliation:
Argentine
Institution/Pays d'affiliation:
Universidad de Buenos Aires/AR
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