Results 51 to 60 of about 932 (123)

Large Filamentous Bacteria Isolated From Sulphidic Sediments Reveal Novel Species and Distinct Energy and Defence Mechanisms for Survival

Environmental Microbiology, Volume 27, Issue 3, March 2025.
In this study, we used micromanipulation and omics to analyse 15 large filamentous bacteria collected from sulphidic sediments off Chile. We discovered novel species from various phyla, and diverse metabolic pathways and defence mechanisms were identified, highlighting their adaptability to the sediment–water interface and resilience against phage ...
Alexis Fonseca, Thomas Ishoey, Carola Espinoza, Ian P. G. Marshall, Lars Peter Nielsen, Victor Ariel Gallardo   +5 more
wiley   +1 more source

Evidence for corrin biosynthesis in the last universal common ancestor

The FEBS Journal, Volume 292, Issue 4, Page 827-850, February 2025.
Cobalamin biosynthesis can be traced back to the last universal common ancestor. After a stage of chemical evolution of the acetyl‐CoA pathway, the enzymatic synthesis of cobalamin evolved, allowing life to be independent of the insoluble solid‐state catalysts that tethered primordial CO2 assimilation to the Earth's crust, suggesting a role for corrin ...
Luca D. Modjewski, Val Karavaeva, Natalia Mrnjavac, Michael Knopp, William F. Martin, Filipa L. Sousa   +5 more
wiley   +1 more source

Deciphering microbial communities involved in marine steel corrosion using high‐throughput amplicon sequencing

Environmental Microbiology Reports, Volume 16, Issue 4, August 2024.
Aggressive forms of intertidal steel corrosion are shown to involve complex microbial consortia including sulfate‐reducing, sulfide‐oxidizing and iron‐oxidizing bacteria along with others including electroactive microbes. Statistical analysis shows the populations are derived from local bed sediment, indicating sediment anoxia as a risk factor for ...
Biji Shibulal, Martin Peter Smith, Ian Cooper, Heidi Marie Burgess, Norman Moles, Alison Willows   +5 more
wiley   +1 more source

Influence of minor hydrocarbon seepage on sulfur cycling in marine subsurface sediments [PDF]

Biogeosciences
All hydrocarbon (HC) reservoirs leak to some extent. When small quantities of HCs escape offshore reservoirs and migrate through overlying organic-poor marine sediments towards the surface, these HCs are often completely metabolized by microorganisms ...
E. Schnabel, A. Vuillemin, C. C. Laczny, B. J. Kunath, A. R. Soares, A. J. Probst, R. Di Primio, J. Kallmeyer   +7 more
doaj   +1 more source

A cascade of sulfur transferases delivers sulfur to the sulfur‐oxidizing heterodisulfide reductase‐like complex

Protein Science, Volume 33, Issue 6, June 2024.
Abstract A heterodisulfide reductase‐like complex (sHdr) and novel lipoate‐binding proteins (LbpAs) are central players of a wide‐spread pathway of dissimilatory sulfur oxidation. Bioinformatic analysis demonstrate that the cytoplasmic sHdr–LbpA systems are always accompanied by sets of sulfur transferases (DsrE proteins, TusA, and rhodaneses).
Tomohisa Sebastian Tanabe, Elena Bach, Giulia D'Ermo, Marc Gregor Mohr, Natalie Hager, Niklas Pfeiffer, Marianne Guiral, Christiane Dahl   +7 more
wiley   +1 more source

Thiocapsa, Lutimaribacter, and Delftia Are Major Bacterial Taxa Facilitating the Coupling of Sulfur Oxidation and Nutrient Recycling in the Sulfide-Rich Isinuka Spring in South Africa

Biology
Sulfur cycling is a fundamental biogeochemical process, yet its microbial underpinnings in environments like the Isinuka sulfur pool remain poorly understood.
Henry Joseph Oduor Ogola, Ramganesh Selvarajan, Somandla Ncube, Lawrence Madikizela   +3 more
doaj   +1 more source

Comparative genomics of a vertically transmitted thiotrophic bacterial ectosymbiont and its close free‐living relative

Molecular Ecology Resources, Volume 24, Issue 1, January 2024.
Abstract Thiotrophic symbioses between sulphur‐oxidizing bacteria and various unicellular and metazoan eukaryotes are widespread in reducing marine environments. The giant colonial ciliate Zoothamnium niveum, however, is the only host of thioautotrophic symbionts that has been cultivated along with its symbiont, the vertically transmitted ectosymbiont ...
Salvador Espada‐Hinojosa, Clarissa Karthäuser, Abhishek Srivastava, Lukas Schuster, Teresa Winter, André Luiz de Oliveira, Frederik Schulz, Matthias Horn, Stefan Sievert, Monika Bright   +9 more
wiley   +1 more source

Bacterial community composition and function in different habitats in Antarctic Fildes region revealed by high-throughput sequencing

Frontiers in Microbiology
IntroductionPristine soil, ornithogenic soil, intertidal sediment, and marine sediment represent four of typical habitats in the Fildes region, maritime Antarctica.
Yi-He Zhang, Yi-He Zhang, Yong-Qiang Hu, Yin-Xin Zeng, Yin-Xin Zeng, Yin-Xin Zeng, Yin-Xin Zeng, Yin-Xin Zeng, Ting Hu, Wei Han, Yu Du, Zhong Hu, Shan-Shan Meng   +12 more
doaj   +1 more source

Erratum: The Iron-Sulfur Flavoprotein DsrL as NAD(P)H:Acceptor Oxidoreductase in Oxidative and Reductive Dissimilatory Sulfur Metabolism

Frontiers in Microbiology, 2021
Frontiers Production Office
doaj   +1 more source

Experimental study on in-situ inhibition mechanism of epigenetic biogenic H2S in coal seam

Meitan xuebao
During coalbed methane (CBM) drainage and production processes, both high-sulfur coal and high-sulfate coal seam water are prone to generate epigenetic biogenic H2S.
Yixuan ZHOU, Wenjie ZHAO, Mengjiao QI, Can LÜ   +3 more
doaj   +1 more source