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Effect of increasing trimethylamine and organic matter concentration on stable carbon isotopes of methane produced in hypersaline, substrate limited environments
(University of Missouri--Columbia, 2013)
Substrate limitation has been proposed as an explanation for 13C enriched methane production from endoevaporite microbial communities in hypersaline environments. To test this possibility, methane production rates and ...
Dominant substrates used by methanogens in hypersaline environments
(University of Missouri--Columbia, 2010)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] The central goal of this study was to determine the dominant substrates used by methanogens in the salt ponds of Elkhorn Slough, the Don Edwards ...
Changes in stable carbon isotopes of methane along a salinity gradient in a hypersaline microbial mat system
(University of Missouri--Columbia, 2007)
The purpose of this study was to examine how the stable carbon isotopes of methane and possible methanogenic substrates change in microbial mat communities as a function of salinity. Microbial mats were sampled from four ...
Organic matter remineralization in the sediment of two acid mine drainage lakes
(University of Missouri--Columbia, 2013)
Acid mine drainage is a significant environmental problem throughout the world. At Rocky Forks Conservation Area near Columbia, MO numerous lakes have formed from old coal mining pits. Most of these lakes have a pH near ...
Use of stable carbon isotopes to assess anaerobic and aerobic methane oxidation in hypersaline ponds
(University of Missouri--Columbia, 2015)
Methane oxidation is known to play a significant role in reducing methane (CH4) concentrations in sediments and water columns in a variety of aqueous environments. In marine systems, for example, it is thought that more ...
Organic sulfur metabolisms in Eastern Lau Spreading Center hydrothermal vents
(University of Missouri--Columbia, 2012)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Sulfur is a central element in deep-sea hydrothermal vent systems, and many thermophiles isolated from these environments have sulfur-based metabolisms. ...