Results 81 to 90 of about 10,170 (250)

Influence of soil management for soybean production under microbial diversity in amazon soils

Frontiers in Environmental Science, 2022
The tropical Amazon has a unique biodiversity that has been affected by the development of pastures and economically important crops, such as soybeans. In the Amazon soil, the communities of microorganisms are diverse and act in different biogeochemical ...
Oscar Victor Cardenas-Alegria, Carlos Willian Dias Dantas, Elaine Maria Silva Guedes Lobato, Sandro Patroca Da Silva, Cássia de Sousa Moraes, Ana Cecília Ribeiro Cruz, Rommel Thiago Jucá Ramos, Rommel Thiago Jucá Ramos, Adriana Ribeiro Carneiro   +8 more
doaj   +1 more source

Substrate-dependent incorporation of carbon and hydrogen for lipid biosynthesis by Methanosarcina barkeri.

Environmental Microbiology Reports, 2020
Dual stable isotope probing has been used to infer rates of microbial biomass production and modes of carbon fixation. In order to validate this approach for assessing archaeal production, the methanogenic archaeon Methanosarcina barkeri was grown either
Weichao Wu, T. Meador, M. Könneke, M. Elvert, G. Wegener, K. Hinrichs   +5 more
semanticscholar   +1 more source

Structural and Spectroscopic Insights into Catalytic Intermediates of a [NiFe]‐hydrogenase from Group 3

ChemBioChem, Volume 26, Issue 21, November 8, 2025.
Hydrogenases catalyze reversible H2 production and are potential models for renewable energy catalysts. Here, the full redox landscape of a group 3 [NiFe]‐hydrogenase from methanothermococcus thermolithotrophicus is elucidated, resembling group 1 enzymes.
Marion Jespersen, Christian Lorent, Olivier N. Lemaire, Ingo Zebger, Tristan Wagner   +4 more
wiley   +1 more source

Co-occurrence of Methanosarcina mazei and Geobacteraceae in an iron(III)-reducing enrichment culture

Frontiers in Microbiology, 2015
Methanosaeta harundinacea and Methanosarcina barkeri, known as classic acetoclastic methanogens, are capable of directly accepting electrons from Geobacter metallireducens for the reduction of carbon dioxide to methane, having been revealed as direct ...
Shiling eZheng, Hongxia eZhang, Hongxia eZhang, Ying eLi, Ying eLi, Hua eZhang, Oumei eWang, Jun eZhang, Fanghua eLiu   +8 more
doaj   +1 more source

Energy-converting [NiFe] hydrogenases in archaea and bacteria: insights into the energy-transducing mechanism [PDF]

, 2005
In recent years a group of multisubunit membrane-bound [NiFe] hydrogenases has been identified in a variety of anaerobic or facultative anaerobic microorganisms.
Forzi, Lucia, Hedderich, Reiner (Dr.)
core   +1 more source

Cobalamin‐Dependent Aryl Methyl Ether O‐Demethylases: Promising Enzymes for Biocatalytic Applications from Lignin Valorization to Organic Synthesis

ChemCatChem, Volume 17, Issue 21, November 10, 2025.
Cobalamin‐dependent aryl methyl ether O‐demethylases have high potential for biocatalytic applications, including lignin valorization and synthetic chemistry. In this review, we provide a detailed overview of such O‐demethylase systems identified to date from various microorganisms, including their mechanism, substrate scope and selectivity, and ...
Niels Krabbe Johnsen, Santipap Chaiyasarn, Zheng Guo, Jaehong Han, Bekir Engin Eser   +4 more
wiley   +1 more source

Purification and properties of 5,10-methenyltetrahydromethanopterin cyclohydrolase from Methanosarcina barkeri [PDF]

Journal of Bacteriology, 1990
The 5,10-methenyltetrahydromethanopterin cyclohydrolase from Methanosarcina barkeri was purified 313-fold to a specific activity of 470 mumol min-1 mg-1 at 37 degrees C and pH 7.8. At this stage, the enzyme was pure as judged from polyacrylamide gel electrophoresis.
B W, te Brömmelstroet, C M, Hensgens, W J, Geerts, J T, Keltjens, C, van der Drift, G D, Vogels   +5 more
openaire   +2 more sources

Formation of zero-valent iron in iron-reducing cultures of Methanosarcina barkeri.

Environmental Science and Technology, 2020
Methanogenic archaea have been shown to reduce iron from ferric [Fe(III)] to ferrous [Fe(II)] state, but minerals that form during iron reduction by different methanogens remain to be characterized.
Hai-Ying Shang, Mirna Daye, O. Sivan, C. Borlina, N. Tamura, B. Weiss, T. Bosak   +6 more
semanticscholar   +1 more source

Role of formate in methanogenesis from xylan by CELLULOMONAS sp. associated with methanogens and DESULFOVIBRIO VULGARIS : inhibition of the aceticlastic reaction [PDF]

, 1986
Different methanogenic defined mixed cultures, including CELLULOMONAS sp. strain ATCC21399 as a hydrolytic and fermentative bacterium, were used to show that methane production could proceed from larchwood xylan as well as from cellulose.
Guyot, Jean-Pierre
core   +1 more source

Current understanding of electroautotrophy and its relevance in astrobiology‐related research

mLife, Volume 4, Issue 5, Page 473-493, October 2025.
Abstract Electroautotrophy—the use of extracellular electrons as the primary energy source for autotrophic metabolism—remains understudied compared to photoautotrophy and chemoautotrophy. Its occurrence in deep‐earth and deep‐sea environments suggests profound implications for astrobiology, yet electroautotrophic microorganisms remain poorly explored ...
Quansheng Wang, Maggie C. Y. Lau Vetter
wiley   +1 more source