Sulfur and methane oxidation by a single microorganism was written by Gwak, Joo-Han;Awala, Samuel Imisi;Nguyen, Ngoc-Loi;Yu, Woon-Jong;Yang, Hae-Young;von Bergen, Martin;Jehmlich, Nico;Kits, K. Dimitri;Loy, Alexander;Dunfield, Peter F.;Dahl, Christiane;Hyun, Jung-Ho;Rhee, Sung-Keun. And the article was included in Proceedings of the National Academy of Sciences of the United States of America in 2022.Recommanded Product: 1,2-Propanediol This article mentions the following:
Natural and anthropogenic wetlands are major sources of the atm. greenhouse gas methane. Methane emissions from wetlands are mitigated by methanotrophic bacteria at the oxic-anoxic interface, a zone of intense redox cycling of carbon, sulfur, and nitrogen compounds Here, we report on the isolation of an aerobic methanotrophic bacterium, ‘Methylovirgula thiovorans’ strain HY1, which possesses metabolic capabilities never before found in any methanotroph. Most notably, strain HY1 is the first bacterium shown to aerobically oxidize both methane and reduced sulfur compounds for growth. Genomic and proteomic analyses showed that soluble methane monooxygenase and XoxF-type alc. dehydrogenases are responsible for methane and methanol oxidation, resp. Various pathways for respiratory sulfur oxidation were present, including the Sox-rDsr pathway and the S4I system. Strain HY1 employed the Calvin-Benson-Bassham cycle for CO2 fixation during chemolithoautotrophic growth on reduced sulfur compounds Proteomic and microrespirometry analyses showed that the metabolic pathways for methane and thiosulfate oxidation were induced in the presence of the resp. substrates. Methane and thiosulfate could therefore be independently or simultaneously oxidized. The discovery of this versatile bacterium demonstrates that methanotrophy and thiotrophy are compatible in a single microorganism and underpins the intimate interactions of methane and sulfur cycles in oxic-anoxic interface environments. In the experiment, the researchers used many compounds, for example, 1,2-Propanediol (cas: 57-55-6Recommanded Product: 1,2-Propanediol).
1,2-Propanediol (cas: 57-55-6) belongs to alcohols. A strong base can deprotonate an alcohol to yield an alkoxide ion (R―O−). For example, sodamide (NaNH2), a very strong base, abstracts the hydrogen atom of an alcohol. Converting an alcohol to an alkene requires removal of the hydroxyl group and a hydrogen atom on the neighbouring carbon atom. Dehydrations are most commonly carried out by warming the alcohol in the presence of a strong dehydrating acid, such as concentrated sulfuric acid.Recommanded Product: 1,2-Propanediol
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