Microbial Community Structure Along a Horizontal Oxygen Gradient in a Costa Rican Volcanic Influenced Acid Rock Drainage System.
Arce-Rodríguez et al.pdf
Cast your vote
You can rate an item by clicking the amount of stars they wish to award to this item.
When enough users have cast their vote on this item, the average rating will also be shown.
Your vote was cast
Thank you for your feedback
Thank you for your feedback
Pieper, Dietmar H
MetadataShow full item record
AbstractWe describe the geochemistry and microbial diversity of a pristine environment that resembles an acid rock drainage (ARD) but it is actually the result of hydrothermal and volcanic influences. We designate this environment, and other comparable sites, as volcanic influenced acid rock drainage (VARD) systems. The metal content and sulfuric acid in this ecosystem stem from the volcanic milieu and not from the product of pyrite oxidation. Based on the analysis of 16S rRNA gene amplicons, we report the microbial community structure in the pristine San Cayetano Costa Rican VARD environment (pH = 2.94-3.06, sulfate ~ 0.87-1.19 g L-1, iron ~ 35-61 mg L-1 (waters), and ~ 8-293 g kg-1 (sediments)). San Cayetano was found to be dominated by microorganisms involved in the geochemical cycling of iron, sulfur, and nitrogen; however, the identity and abundance of the species changed with the oxygen content (0.40-6.06 mg L-1) along the river course. The hypoxic source of San Cayetano is dominated by a putative anaerobic sulfate-reducing Deltaproteobacterium. Sulfur-oxidizing bacteria such as Acidithiobacillus or Sulfobacillus are found in smaller proportions with respect to typical ARD. In the oxic downstream, we identified aerobic iron-oxidizers (Leptospirillum, Acidithrix, Ferrovum) and heterotrophic bacteria (Burkholderiaceae bacterium, Trichococcus, Acidocella). Thermoplasmatales archaea closely related to environmental phylotypes found in other ARD niches were also observed throughout the entire ecosystem. Overall, our study shows the differences and similarities in the diversity and distribution of the microbial communities between an ARD and a VARD system at the source and along the oxygen gradient that establishes on the course of the river.
CitationMicrob Ecol. 2020;10.1007/s00248-020-01530-9. doi:10.1007/s00248-020-01530-9.
AffiliationHZI,Helmholtz-Zentrum für Infektionsforschung GmbH, Inhoffenstr. 7,38124 Braunschweig, Germany.
The following license files are associated with this item:
- Creative Commons
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-ShareAlike 4.0 International
- Analysis of the microbial community in moderately acidic drainage from the Yanahara pyrite mine in Japan.
- Authors: Wang Y, Yasuda T, Sharmin S, Kanao T, Kamimura K
- Issue date: 2014
- Thermoplasmatales and sulfur-oxidizing bacteria dominate the microbial community at the surface water of a CO<sub>2</sub>-rich hydrothermal spring located in Tenorio Volcano National Park, Costa Rica.
- Authors: Arce-Rodríguez A, Puente-Sánchez F, Avendaño R, Martínez-Cruz M, de Moor JM, Pieper DH, Chavarría M
- Issue date: 2019 Mar
- Microbial diversity in anaerobic sediments at Rio Tinto, a naturally acidic environment with a high heavy metal content.
- Authors: Sánchez-Andrea I, Rodríguez N, Amils R, Sanz JL
- Issue date: 2011 Sep
- Pristine but metal-rich Río Sucio (Dirty River) is dominated by Gallionella and other iron-sulfur oxidizing microbes.
- Authors: Arce-Rodríguez A, Puente-Sánchez F, Avendaño R, Libby E, Rojas L, Cambronero JC, Pieper DH, Timmis KN, Chavarría M
- Issue date: 2017 Mar
- Biodiversity and geochemistry of an extremely acidic, low-temperature subterranean environment sustained by chemolithotrophy.
- Authors: Kimura S, Bryan CG, Hallberg KB, Johnson DB
- Issue date: 2011 Aug