Between Dec 19, 2024 and Jan 2, 2025, datasets can be submitted to DRUM but will not be processed until after the break. Staff will not be available to answer email during this period, and will not be able to provide DOIs until after Jan 2. If you are in need of a DOI during this period, consider Dryad or OpenICPSR. Submission responses to the UDC may also be delayed during this time.
 

Sulfur bacteria promote dissolution of authigenic carbonates at marine methane seeps

Loading...
Thumbnail Image
Statistics
View Statistics

Collection period

2018-10-15
2018-10-15

Date completed

2021-01-26

Date updated

Time period coverage

Geographic coverage

Source information

Journal Title

Journal ISSN

Volume Title

Title

Sulfur bacteria promote dissolution of authigenic carbonates at marine methane seeps

Published Date

2021-01-27

Author Contact

Flood, Beverly E.
beflood@umn.edu

Type

Dataset
Genomics Data

Abstract

Carbonate rocks at marine methane seeps are commonly colonized by sulfur-oxidizing bacteria that co-occur with etch pits that suggest active dissolution. We show that sulfur-oxidizing bacteria are abundant on the surface of an exemplar seep carbonate collected from Del Mar East Methane Seep Field, USA. We then used bioreactors containing aragonite mineral coupons that simulate certain seep conditions to investigate plausible in situ rates of carbonate dissolution associated with sulfur-oxidizing bacteria. Bioreactors inoculated with a sulfur-oxidizing bacterial strain, Celeribacter baekdonensis LH4, growing on aragonite coupons induced dissolution rates in sulfidic, heterotrophic, and abiotic conditions of 1773.97 (±324.35), 152.81 (±123.27), and 272.99 (±249.96) Mol CaCO3  cm-2  yr-1, respectively. Steep gradients in pH were also measured within carbonate-attached biofilms using pH-sensitive fluorophores. Together, these results show that the production of acidic microenvironments in biofilms of sulfur-oxidizing bacteria are capable of dissolving carbonate rocks, even under well-buffered marine conditions. Our results support the hypothesis that authigenic carbonate rock dissolution driven by lithotrophic sulfur-oxidation constitutes a previously unknown carbon flux from the rock reservoir to the ocean and atmosphere.

Description

Assembled 16S rRNA gene iTag libraries of the microbial communities attached to a methane seep carbonate rock on the top surfaces vs. the bottom surface (in contact with sediments) subsampled 3 times.

Referenced by

Leprich, D. J., Flood, B. E., Schroedl, P. R., Ricci, E., Marlow, J. J., Girguis, P. R., & Bailey, J. V. (2021). Sulfur bacteria promote dissolution of authigenic carbonates at marine methane seeps. The ISME Journal, 1-14.
https://doi.org/10.1038/s41396-021-00903-3

Related to

Replaces

item.page.isreplacedby

Publisher

Funding information

NASA Exobiology (NNX-14AK20G)
NSF (OCE-0826254)
NASA (80NSSC18K1140)
NSF (1542506)

item.page.sponsorshipfunderid

item.page.sponsorshipfundingagency

item.page.sponsorshipgrant

Previously Published Citation

Other identifiers

Suggested citation

Leprich, Dalton J.; Flood, Beverly E.; Schroedl, Peter R.; Ricci, Elizabeth; Marlow, Jeffery J.; Girguis, Peter R.; Bailey, Jake V.. (2021). Sulfur bacteria promote dissolution of authigenic carbonates at marine methane seeps. Retrieved from the Data Repository for the University of Minnesota (DRUM), https://doi.org/10.13020/4j4t-e569.

Content distributed via the University Digital Conservancy may be subject to additional license and use restrictions applied by the depositor. By using these files, users agree to the Terms of Use. Materials in the UDC may contain content that is disturbing and/or harmful. For more information, please see our statement on harmful content in digital repositories.