Benthic bacterial diversity from freshwater tufas of the Iberian Range (Spain)
Por:
Beraldi-Campesi H., Arenas-Abad C., Garcia-Pichel F., Arellano-Aguilar O., Auqué L., Vázquez-Urbez M., Sancho C., Osácar C., Ruiz-Velasco S.
Publicada:
1 may 2012
Resumen:
Aiming to characterize the bacterial diversity of modern tufa systems of the Iberian Range (Spain), we surveyed the 16S rRNA gene sequence diversity from 24 sites within three rivers (Anamaza, Mesa and Piedra). These tufas record substantial calcareous growth under different physicochemical conditions and are part of an important, regional landscape-building system. The bacterial community structure and composition, richness and diversity were quantified from denaturing gradient gel electrophoresis fingerprints. Retrieved DNA sequences could be assigned to 10 bacterial phyla and included a variety of phototrophic and heterotrophic groups. Cyanobacteria, mainly filamentous taxa, constituted 43% of all the retrieved sequences, followed by Firmicutes (11%), Gammaproteobacteria (10%), Alphaproteobacteria (7%), Acidobacteria (6%), Bacteroidetes (5%), Betaproteobacteria (4%), Planctomycetes (4%), Actinobacteria (3%) and Deltaproteobacteria (2%). Diatom and Xanthophyceae chloroplast sequences
Filiaciones:
Beraldi-Campesi H.:
Univ Nacl Autonoma Mexico, Inst Geol, Mexico City 04510, DF, Mexico
Arenas-Abad C.:
Department of Earth Sciences, University of Zaragoza, Zaragoza, Spain
Garcia-Pichel F.:
School of Life Sciences, Arizona State University, Tempe, AZ, United States
Arellano-Aguilar O.:
Univ Nacl Autonoma Mexico, Inst Biomed Res, Mexico City 04510, DF, Mexico
Auqué L.:
Department of Earth Sciences, University of Zaragoza, Zaragoza, Spain
Vázquez-Urbez M.:
Department of Earth Sciences, University of Zaragoza, Zaragoza, Spain
Sancho C.:
Department of Earth Sciences, University of Zaragoza, Zaragoza, Spain
Osácar C.:
Department of Earth Sciences, University of Zaragoza, Zaragoza, Spain
Ruiz-Velasco S.:
Univ Nacl Autonoma Mexico, Inst Appl Math & Syst, Mexico City 04510, DF, Mexico
All Open Access, Bronze
|