Surface runoff alters cave microbial community structure and function

Caves formed by sulfuric acid dissolution have been identified worldwide. These caves can host diverse microbial communities that are responsible for speleogenesis and speleothem formation. It is not well understood how microbial communities change in response to surface water entering caves. Illumi...

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Veröffentlicht in:PloS one 2020-05, Vol.15 (5), p.e0232742
Hauptverfasser: Davis, Madison C, Messina, Maria A, Nicolosi, Giuseppe, Petralia, Salvatore, Baker, 4th, Melvin D, Mayne, Christiana K S, Dinon, Chelsea M, Moss, Christina J, Onac, Bogdan P, Garey, James R
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container_title PloS one
container_volume 15
creator Davis, Madison C
Messina, Maria A
Nicolosi, Giuseppe
Petralia, Salvatore
Baker, 4th, Melvin D
Mayne, Christiana K S
Dinon, Chelsea M
Moss, Christina J
Onac, Bogdan P
Garey, James R
description Caves formed by sulfuric acid dissolution have been identified worldwide. These caves can host diverse microbial communities that are responsible for speleogenesis and speleothem formation. It is not well understood how microbial communities change in response to surface water entering caves. Illumina 16S rRNA sequencing and bioinformatic tools were used to determine the impact of surface water on the microbial community diversity and function within a spring pool found deep in the Monte Conca Cave system in Sicily, Italy. Sulfur oxidizers comprised more than 90% of the microbial community during the dry season and were replaced by potential anthropogenic contaminants such as Escherichia and Lysinibacillus species after heavy rains. One sampling date appeared to show a transition between the wet and dry seasons when potential anthropogenic contaminants (67.3%), sulfur-oxidizing bacteria (13.6%), and nitrogen-fixing bacteria (6.5%) were all present within the spring pool.
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These caves can host diverse microbial communities that are responsible for speleogenesis and speleothem formation. It is not well understood how microbial communities change in response to surface water entering caves. Illumina 16S rRNA sequencing and bioinformatic tools were used to determine the impact of surface water on the microbial community diversity and function within a spring pool found deep in the Monte Conca Cave system in Sicily, Italy. Sulfur oxidizers comprised more than 90% of the microbial community during the dry season and were replaced by potential anthropogenic contaminants such as Escherichia and Lysinibacillus species after heavy rains. 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subjects Acid dissolution
Anthropogenic factors
Bacteria
Biological research
Biology and Life Sciences
Carbon
Caves
Chemical properties
Community structure
Contaminants
Deoxyribonucleic acid
Dissolution
DNA
Dry season
Earth Sciences
Environmental aspects
Genetic testing
Heavy rainfall
Human influences
Methylene blue
Microbial activity
Microbial colonies
Microbiomes
Microorganisms
Molecular biology
Natural history
Nitrogen fixation
Nitrogen-fixing bacteria
Nitrogenation
Oxidation
Oxidizing agents
Physical Sciences
Rainy season
Research and Analysis Methods
RNA
rRNA 16S
Runoff
Seasons
Speleology
Structure (Literature)
Structure-function relationships
Sulfur
Sulfur compounds
Sulfuric acid
Surface runoff
Surface water
Water
Water resources
Water wells
title Surface runoff alters cave microbial community structure and function
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