Geothermal Gases Shape the Microbial Community of the Volcanic Soil of Pantelleria, Italy.

ABSTRACT: Volcanic and geothermal environments are characterized by low pH, high temperatures, and gas emissions consisting of mainly CO₂ and varied CH₄, H₂S, and H₂ contents which allow the formation of chemolithoautotrophic microbial communities. To determine the link between the emitted gases and the microbial community composition, geochemical and metagenomic analysis were performed. Soil samples of the geothermic region Favara Grande (Pantelleria, Italy) were taken at various depths (1 to 50 cm). Analysis of the gas composition revealed that CH₄ and H₂ have the potential to serve as the driving forces for the microbial community. Our metagenomic analysis revealed a high relative abundance of Bacteria in the top layer (1 to

SUBMITTER: Picone N 

PROVIDER: S-EPMC7646524 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature