Author(s)
Tim N. Enke
Published 4 Projects
Microbiology Co Evolution Activated Granular Sludge Accumulibac Ter
Otto Cordero
Published 11 Projects
Microbiology Key Words Co Evolution Activated Granular Sludge Accumulibac
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Video Abstract (AI generated) (01:31) Paper Preprint Environmental MicrobiologyMarine microorganisms play a fundamental role in the global carbon cycle by mediating the sequestration of organic matter in ocean waters and sediments. A better understanding of how biological factors, such as microbial community composition, influence the lability and fate of organic matter is needed. Here, we explored the extent to which organic matter remineralization is influenced by species-specific metabolic capabilities. We carried out aerobic time-series incubations of Guaymas basin sediments to quantify the dynamics of carbon utilization by two different heterotrophic marine isolates. Continuous measurement of respiratory CO2 production and its carbon isotopic compositions (13C and 14C) shows species-specific differences in the rate, quantity, and type of organic matter remineralized. Each species was incubated with hydrothermally-influenced vs. unimpacted sediments, resulting in a ~3-fold difference in respiratory CO2 yield across the experiments. Genomic analysis indicated that the observed carbon utilization patterns may be attributed in part to the number of gene copies encoding for extracellular hydrolytic enzymes. Our results demonstrate that the lability and remineralization of organic matter in marine environments is not only a function of chemical composition and/or environmental conditions, but also a function of the microorganisms that are present and active.
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Otto Cordero. (2021, Oct 29).Illuminating microbial species-specific effects on organic matter remineralization in marine sediments[Video]. Scitok. https://scitok.com/project/p/773993ea
Mahmoudi Nagissa. "Illuminating microbial species-specific effects on organic matter remineralization in marine sediments" Scitok, uploaded by Cordero Otto, 29 Oct, 2021, https://scitok.com/project/p773993ea
Otto Cordero. "Illuminating microbial species-specific effects on organic matter remineralization in marine sediments" Scitok. (Oct 29, 2021). https://scitok.com/project/p/773993ea
Otto Cordero (Oct 29, 2021). Illuminating microbial species-specific effects on organic matter remineralization in marine sediments Scitok. https://scitok.com/project/p/773993ea
Otto Cordero. Illuminating microbial species-specific effects on organic matter remineralization in marine sediments[video]. 2021 Oct 29. https://scitok.com/project/p/773993ea
@online{al2006link, title={ Illuminating microbial species-specific effects on organic matter remineralization in marine sediments }, author={ Cordero, Otto }, organization={Scitok}, month={ Oct }, day={ 29 }, year={ 2021 }, url = {https://scitok.com/project/p/773993ea}, }