Extremophiles

pp 1–13

Bacterial diversity in fumarole environments of the Paricutín volcano, Michoacán (Mexico)

  • Miguel Medrano-Santillana
  • Elcia Margaret Souza-Brito
  • Robert Duran
  • Felix Gutierrez-Corona
  • Georgina Elena Reyna-López
Original Paper

DOI: 10.1007/s00792-017-0920-8

Cite this article as:
Medrano-Santillana, M., Souza-Brito, E.M., Duran, R. et al. Extremophiles (2017). doi:10.1007/s00792-017-0920-8

Abstract

Active volcanoes are among the most extreme environments on Earth. The extreme temperatures, presence of toxic heavy metals and low nutrient bioavailability favor the development of extremophiles. We characterized the physical–chemical parameters of and bacterial communities (T-RFLP and 16S rRNA gene libraries) inhabiting fumarole niches of the Paricutín volcano located in Michoacán (Mexico). This volcano, which surged in 1943, is one of the youngest volcanoes on Earth and the microbial diversity in this area is yet to be characterized. The sampling stations were characterized in a pH range from 5.34 to 7.89 and showed different temperatures (soil, 27–87 °C; air, 13.6–56 °C) with high concentrations of 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 Firmicutes and Proteobacteria phyla including sequences associated with thermophiles and sulfate reducing bacteria. Overall, the Paricutín volcano showed low bacterial diversity and its prokaryotic diversity was characterized by the impossibility of amplifying Archaea-related sequences.

Keywords

Extreme environments Bacterial communities T-RFLP 16S rRNA gene 

Supplementary material

792_2017_920_MOESM1_ESM.docx (718 kb)
Supplementary material 1 (DOCX 717 KB)

Copyright information

© Springer Japan 2017

Authors and Affiliations

  • Miguel Medrano-Santillana
    • 1
  • Elcia Margaret Souza-Brito
    • 2
  • Robert Duran
    • 3
  • Felix Gutierrez-Corona
    • 1
  • Georgina Elena Reyna-López
    • 1
  1. 1.Departamento de BiologíaUniversidad de GuanajuatoGuanajuatoMexico
  2. 2.Ingeniería Ambiental, División de IngenieríasUniversidad de GuanajuatoGuanajuatoMexico
  3. 3.Equipe Environnement et Microbiologie-MELODY group-UMR IPREM5254BP 1155 Université de Pau et des Pays de l‘AdourPau CedexFrance