Project description:We performed a microbial community analysis of biofilms inhabiting thermal (35 to 50 degrees C) waters more than 60 m below the ground surface near Acquasanta Terme, Italy. The groundwater hosting the biofilms has 400 to 830 microM sulfide, <10 microM O(2), pH of 6.3 to 6.7, and specific conductivity of 8,500 to 10,500 microS/cm. Based on the results of 16S rRNA gene cloning and fluorescent in situ hybridization (FISH), the biofilms have low species richness, and lithoautotrophic (or possibly mixotrophic) Gamma- and Epsilonproteobacteria are the principle biofilm architects. Deltaproteobacteria sequences retrieved from the biofilms have <90% 16S rRNA similarity to their closest relatives in public databases and may represent novel sulfate-reducing bacteria. The Acquasanta biofilms share few species in common with Frasassi cave biofilms (13 degrees C, 80 km distant) but have a similar community structure, with representatives in the same major clades. The ecological success of Sulfurovumales-group Epsilonproteobacteria in the Acquasanta biofilms is consistent with previous observations of their dominance in sulfidic cave waters with turbulent water flow and high dissolved sulfide/oxygen ratios.

| S-EPMC2935061 | biostudies-literature

alcoholic fermentative material

Project description:alcoholic fermentative material high-throughput sequencing

| PRJNA804647 | ENA

novel PRB material

Project description:novel PRB material Raw sequence reads

| PRJNA624830 | ENA

Coptotermes spp. nest material

Project description:Coptotermes spp. nest material Metagenome

| PRJNA657759 | ENA

Methanotrophic community microarray

Project description:Transcriptional profiling of methanotrophic bacteria (pmoA gene) in methane oxidation biocover soil by depth Three-different depth condition in methane oxidation biocover soil: top, middle and botton layer soil: genomic DNA extract. Three replicate per array.

2013-09-28 | E-GEOD-51235 | biostudies-arrayexpress

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