Results 31 to 40 of about 923 (125)

The water column of the Yamal tundra lakes as a microbial filter preventing methane emission [PDF]

Biogeosciences, 2021
Microbiological, molecular ecological, biogeochemical, and isotope geochemical research was carried out in four lakes of the central part of the Yamal Peninsula in the area of continuous permafrost. Two of them were large (73.6 and 118.6 ha) and deep (up
A. Savvichev, I. Rusanov, Y. Dvornikov, V. Kadnikov, A. Kallistova, E. Veslopolova, A. Chetverova, A. Chetverova, M. Leibman, P. A. Sigalevich, N. Pimenov, N. Ravin, A. Khomutov   +12 more
doaj   +1 more source

Active Methanotrophs and Their Response to Temperature in Marine Environments: An Experimental Study

Journal of Marine Science and Engineering, 2021
Aerobic methane (CH4) oxidation plays a significant role in marine CH4 consumption. Temperature changes resulting from, for example, global warming, have been suggested to be able to influence methanotrophic communities and their CH4 oxidation capacity ...
Jing Li, Xiaoqing Xu, Changling Liu, Nengyou Wu, Zhilei Sun, Xingliang He, Ye Chen   +6 more
doaj   +1 more source

Redox Zone and Trophic State as Drivers of Methane-Oxidizing Bacterial Abundance and Community Structure in Lake Sediments

Frontiers in Environmental Science, 2022
Eutrophication is expected to increase methane production in freshwater sediments worldwide over the coming decades. Methane-oxidizing bacteria (MOB) consume a significant fraction of this sedimentary methane, but the factors that control their ...
Sigrid van Grinsven, Dimitri V. Meier, Anja Michel, Xingguo Han, Carsten J. Schubert, Carsten J. Schubert, Mark A. Lever   +6 more
doaj   +1 more source

Biogeochemistry of an Iron- and Manganese-Rich Stratified Lake: Tasik Biru, Malaysia, as a Modern Model Habitat for the Ancient Ocean. [PDF]

Geobiology
ABSTRACT Tasik Biru is a ~70 m‐deep tropical lake in Malaysia, originating from a water‐filled open pit mine. We investigated the biogeochemistry and microbial community of the lake as a modern model habitat to the stratified ancient ocean. We found that a sharp redoxcline exists at around 50 m depth, related to the decrease of O2 and pH (7.2–6.8 ...
Mansor M, Kappler A, Rodríguez TIG, Lihan S, Katsev S.   +4 more
europepmc   +2 more sources

Impact of Concurrent aerobic-anaerobic Methanotrophy on Methane Emission from Marine Sediments in Gas Hydrate Area. [PDF]

Environ Sci Technol
Microbial methane oxidation has a significant impact on the methane flux from marine gas hydrate areas. However, the environmental fate of methane remains poorly constrained. We quantified the relative contributions of aerobic and anaerobic methanotrophs
Miyajima Y, Aoyagi T, Yoshioka H, Hori T, Takahashi HA, Tanaka M, Tsukasaki A, Goto S, Suzumura M.   +8 more
europepmc   +3 more sources

Microplastic polymer properties as deterministic factors driving terrestrial plastisphere microbiome assembly and succession in the field

Environmental Microbiology, Volume 25, Issue 12, Page 2681-2697, December 2023., 2023
Abstract Environmental microplastic (MP) is ubiquitous in aquatic and terrestrial ecosystems providing artificial habitats for microbes. Mechanisms of MP colonization, MP polymer impacts, and effects on soil microbiomes are largely unknown in terrestrial systems.
Stephan Rohrbach, Gerasimos Gkoutselis, Linda Hink, Alfons R. Weig, Martin Obst, Astrid Diekmann, Adrian Ho, Gerhard Rambold, Marcus A. Horn   +8 more
wiley   +1 more source

Journal of Biogeography / Abundance and biogeography of methanogenic and methanotrophic microorganisms across European streams [PDF]

, 2021
Aim: Although running waters are getting recognized as important methane sources, large‐scale geographical patterns of microorganisms controlling the net methane balance of streams are still unknown.
Klaus, M., Piano, E., Niedrist, G. H., Attermeyer, K., Praeg, N., Lamonica, D., Doyle, B., Catalán, N., Thuile Bistarelli, L., Mor, J.-R., Pilotto, F., Nagler, M., Machalett, B., Fuss, T., Romero, F., Kenderov, L., Roberts, C. G., Cauvy-Fraunié, S., Nydahl, A. C., Gilbert, P., Romero González-Quijano, C., Fenoglio, S., Colls, M., Bors, C., Bednařík, A.   +24 more
core   +2 more sources

Leveraging core enzyme structures for microbiota targeted functional regulation: Urease as an example. [PDF]

Imeta
We present an innovative methodology that integrates core enzyme identification, protein structural characterization, regulator virtual screening, and functional validation to achieve precise microbiome functional regulation. As a proof of concept, we focused on the regulation of urea decomposition by the rumen microbiota in ruminants. This methodology
Zhao S, Zhong H, He Y, Li X, Zhu L, Xiong Z, Zhang X, Zheng N, Morgavi DP, Wang J.   +9 more
europepmc   +2 more sources

Biogeography of microbial communities in high‐latitude ecosystems: Contrasting drivers for methanogens, methanotrophs and global prokaryotes

Environmental Microbiology, Volume 25, Issue 12, Page 3364-3386, December 2023., 2023
Methane cycle is crucial in high‐latitude ecosystems as global warming makes permafrost organic carbon increasingly available. An extensive dataset of methane‐linked microbial communities, physicochemical, climatic and geographic variables was investigated under a standardized methodology.
Christophe V. W. Seppey, Léa Cabrol, Frederic Thalasso, Laure Gandois, Céline Lavergne, Karla Martinez‐Cruz, Armando Sepulveda‐Jauregui, Polette Aguilar‐Muñoz, María Soledad Astorga‐España, Rolando Chamy, Bruna Martins Dellagnezze, Claudia Etchebehere, Gilberto J. Fochesatto, Oscar Gerardo‐Nieto, Andrés Mansilla, Alison Murray, Maxime Sweetlove, Nikita Tananaev, Roman Teisserenc, Alexander T. Tveit, Anton Van de Putte, Mette M. Svenning, Maialen Barret   +22 more
wiley   +1 more source

Identification of Novel Methane-, Ethane-, and Propane-Oxidizing Bacteria at Marine Hydrocarbon Seeps by Stable Isotope Probing [PDF]

, 2010
Marine hydrocarbon seeps supply oil and gas to microorganisms in sediments and overlying water. We used stable isotope probing (SIP) to identify aerobic bacteria oxidizing gaseous hydrocarbons in surface sediment from the Coal Oil Point seep field ...
Alex L. Sessions, Molly C. Redmond, David L. Valentine   +2 more
core   +2 more sources