ENA0000GenomicsUniversidad de Guanajuatohttps://www.ebi.ac.uk/ena/browser/view/PRJEB6073Active volcanoes are among the most extreme environments on Earth; these ecosystems are quite interesting for many microbiological reasons, for example, abiotic factors like extreme temperatures and low bioavailability of nutrients that favor the existence of extremophiles. In this study, we characterized the physical-chemical parameters and the microbial communities (T-RFLP and 16S rRNA gene libraries) inhabiting the fumarolic niche of the Paricutin volcano located in Michoacan (Mexico), the youngest volcano in the world., The sampling sites were characterized as neutral (pH 5.34 to 7.89), hot (soil temperature 27ºC to 87ºC - air temperature 13.6ºC to 56ºC) and with a high concentration of heavy metals such as iron and arsenic. The most abundant bacterial populations confirmed by T-RFLP and 16S rRNA gene libraries were related to members of the Firmicutes and Proteobacteria phyla. Among them, sequences related to thermophiles and sulfate reducing bacteria were detected, bacteria which are already reported to have a high biotechnological potential. The low bacterial diversity and the impossibility to amplify Archaea sequences were indicative of Paricutin volcano youngness.ENAEnvironmental, Extremophile., Community Genomics, Genomics, Population, Population Genomics, Community, Environmental GenomicsBiological Diversity., Diversity, Biological0.00.00.00.00.00falsebacterial biodiversity from Paricutin volcanobacterial metagenomics of extremophiles2016-05-202014-06-08PRJEB6073