Results 221 to 230 of about 10,170 (250)

Spontaneous Protoplast Formation by Methanosarcina barkeri

Microbiology, 1985
Methanosarcina barkeri strain FR-19 lysed spontaneously in substrate-depleted cultures. The addition of 0.3 M-sucrose prevented complete lysis and resulted in the formation of osmotically sensitive UV-fluorescent spheres. Electron microscopic examination showed that complete degradation of the cell wall occurred before the release of true protoplasts ...
T. L. R. P. DAVIS, J. E. HARRIS
openaire   +1 more source

F0F1-ATPase Genes from an Archaebacterium,Methanosarcina barkeri

Biochemical and Biophysical Research Communications, 1997
It has been known that an archaebacterium Methanosarcina barkeri strain MS (DSM 800) has a V-type ATPase (Inatomi, K., et al. (1989) J. Biol. Chem. 264, 10954-10959). Here, we report cloning of a cluster of F0F1-ATPase genes from the same organism, the first ever found in archaebacteria. The cluster and encoded subunits exhibit several unusual features
M, Sumi, M, Yohda, Y, Koga, M, Yoshida
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Riboflavin-Functionalized Conductive Material Enhances a Pilot-Scaled Anaerobic Digester Fed with Cattle Manure Wastewater: Synergies on Methanogenesis and Methanosarcina barkeri Enrichment

Water
Anaerobic digestion (AD) technology is universally acknowledged as the most economically viable and efficient approach for energy recovery from livestock manure. To validate the efficacy of riboflavin-functionalized carbon-based conductive materials (CCM-
Guangdong Sun, Yiwei Zeng, Qingtao Deng, Jianyong Ma, He Dong, Haowen Zhang, Hao He, Haiyu Xu, Hongbin Wu, Yan Dang   +9 more
semanticscholar   +1 more source

Precipitation of low-temperature disordered dolomite induced by extracellular polymeric substances of methanogenic Archaea Methanosarcina barkeri: Implications for sedimentary dolomite formation

American Mineralogist, 2020
A correlation between methanogenesis and dolomite formation has been reported; however, the mechanism underlying this association is not fully understood.
Fangfu Zhang, Huifang Xu, E. Shelobolina, H. Konishi, E. Roden   +4 more
semanticscholar   +1 more source

Corrinoids from Methanosarcina barkeri: Structure of the α-ligand

Biochemical and Biophysical Research Communications, 1982
Abstract 5-Hydroxybenzimidazole is the only base detected in cobamide compounds from methanol-grown Methanosarcina barkeri. 5-Hydroxybenzimidazolylcobamide accounted for about 83 and 90% of the total corrinoids of whole cells and cell-free extracts, respectively. Probably, the rest of the corrinoids are base-less.
A, Pol, C, van der Drift, G D, Vogels
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Carbonic anhydrase activity in acetate grown Methanosarcina barkeri

Archives of Microbiology, 1989
Cell extracts (27000xg supernatant) of acetate grown Methanosarcina barkeri were found to have carbonic anhydrase activity (0.41 U/mg protein), which was lost upon heating or incubation with proteinase K. The activity was inhibited by Diamox (apparent K i=0.5 mM), by azide (apparent K i=1 mM), and by cyanide (apparent K i=0.02 mM).
Marion Karrasch, Michael Bott, Rudolf K. Thauer   +2 more
openaire   +1 more source

Effect of microwave irradiated Methanosarcina barkeri DSM-804 on biomethanation

Bioresource Technology, 2006
Methanosarcina barkeri DSM-804, a methanogenic bacterium, when exposed to microwave radiation of frequencies ranging from 13.5 to 36.5 GHz, showed faster growth in comparison to the unirradiated bacterial culture. Methane concentration in the biogas generated from the irradiated culture was higher than that from unirradiated one, which was to 76.3% on ...
S, Banik, S, Bandyopadhyay, S, Ganguly, D, Dan   +3 more
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Nitrogen fixation in Methanosarcina barkeri strain 227

1990
The ability of methanogenic archaebacteria to fix N2 was independently reported by four laboratories in 1984–85. Murray and Zinder (9) and Belay, Sparling and Daniels (2) published concurrent papers describing diazotrophy in Methanosarcina barkeri strain 227 and Methanococcus thermolithotrophicus respectively, followed soon afterward by the report by ...
S. H. Zinder, A. L. Lobo
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Lack of peptidoglycan in the cell walls of Methanosarcina barkeri

Archives of Microbiology, 1977
Neither muramic acid and glucosamine nor D-glutamic acid or other amino acids typical of peptidoglycan were found in cell walls of two strains of Methanosarcina barkeri. The main components are galactosamine, neutral sugars and uronic acids. Therefore, the structural component of the cell wall most likely consists of an acid heteropolysaccharide ...
O, Kandler, H, Hippe
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Methanol: coenzyme M methyltransferase from Methanosarcina barkeri

1997
In Methanosarcina barkeri, methanogenesis from methanol is initiated by the formation of methyl-coenzyme M from methanol and coenzyme M. This methyl transfer reaction is catalyzed by two enzymes, designated MT1 and MT2. Transferase MT1 is a corrinoid protein.
Sauer, K., Harms, U., Thauer, R. ; https://orcid.org/0000-0003-0714-0148   +2 more
openaire   +3 more sources