Results 71 to 80 of about 3,847 (199)

Metagenomic analysis of nitrogen and methane cycling in the Arabian Sea oxygen minimum zone [PDF]

, 2016
Oxygen minimum zones (OMZ) are areas in the global ocean where oxygen concentrations drop to below one percent. Low oxygen concentrations allow alternative respiration with nitrate and nitrite as electron acceptor to become prevalent in these areas ...
Jetten, M.S.M., Kox, M.A.R., Lüke, C., Speth, D.R., Villanueva, L.   +4 more
core   +3 more sources

Methane‐Driven Arsenic Biogeochemical Cycling in Deep‐Sea Cold Seeps: Implications for Oceanic Arsenic Geochemistry

Geophysical Research Letters, Volume 52, Issue 16, 28 August 2025.
Abstract Arsenic accumulation in seafloor cold seeps is poorly understood. Here, we investigate the interplay between arsenic and methane biogeochemical cycles at the Haima cold seep, South China Sea. Geochemical analyses showed elevated arsenic levels in seep sediments, primarily as sulfide‐bound forms, with strong correlations between dissolved ...
Jiwei Li, Xiyang Dong, Shuangquan Liu, Wanli Chen, Jin Liao, Chuwen Zhang, Shijie Bai, Hengchao Xu, Jian Zhang, Shun Chen, Kaiwen Ta, Shamik Dasgupta, Xiaotong Peng   +12 more
wiley   +1 more source

Visible-Light Photochromic Properties of an Inorganic-Organic Phosphomolybdic Acid/Polythiophene Hybrid Thin Film

Chemistry
A visible-light photochromic hybrid film was synthesized based on combining phosphomolybdic acid (PMoA) with the polythiophene (PTh) matrix. The microstructure and photochromic properties of the materials were analyzed through atomic force microscopy ...
Wanqing Zhao, Hongmei Zhao, Wei Feng, Honggang Zhao   +3 more
doaj   +1 more source

Aquatic plant surface as a niche for methanotrophs

Frontiers in Microbiology, 2014
This study investigated the potential local CH4 sink in various plant parts as a boundary environment of CH4 emission and consumption. By comparing CH4 consumption activities in cultures inoculated with parts from 39 plant species, we observed ...
Naoko eYoshida, Naoko eYoshida, Hiroyuki eIguchi, Hiroya eYurimoto, Akio eMurakami, Akio eMurakami, Yasuyoshi eSakai, Yasuyoshi eSakai   +7 more
doaj   +1 more source

Community analysis of betaproteobacterial ammonia-oxidizing bacteria using the amoCAB operon [PDF]

, 2009
The genes and intergenic regions of the amoCAB operon were analyzed to establish their potential as molecular markers for analyzing ammonia-oxidizing betaproteobacterial (beta-AOB) communities.
Johannes F. Imhoff, Karl-Paul Witzel, Ok-Sun Kim, Pilar Junier, Tae-Seok Ahn, Thomas Junier   +5 more
core   +4 more sources

Sustained Green Manure‐Rice Rotations Can Mitigate Methane Emissions by Enhancing Microbial Methane Oxidation in Southern China

Earth's Future, Volume 13, Issue 8, August 2025.
Abstract Green manure (GM) enhances the ecological services in agricultural ecosystems, including soil health and carbon sequestration. However, its effect on regional methane (CH4) emissions from paddy fields is unclear. Here we clarify the impacts of GM rotation by combining process‐based modeling with microbial gene abundance information and ...
Hao Liang, Jin Fu, Guopeng Zhou, Jiguang Feng, Qiuan Zhu, Pete Smith, Benoît Gabrielle, Tao Li, Susanne Schmidt, Changxu Xu, Jia Liu, Jun Nie, Ji Wu, Mingjian Geng, Fei Wang, Yuting Liang, Weidong Cao, Feng Zhou   +17 more
wiley   +1 more source

Biogeographic Patterns and Ecological Roles of Microorganisms in Sediments Along an Estuarine Salinity Gradient

Environmental Microbiology Reports, Volume 17, Issue 4, August 2025.
From the river coastal to the adjacent sea waters, the diversity characteristics, community assembly processes, functional potential and community compositions of sedimentary microbial communities exhibit significant changes with increasing salinity levels.
Zongxiao Zhang, Guo Yuan, Xakila Turgun, Zulpinur Turgun, Lijun Hou, Mao Ye, Yonghui Wang, Xingbin Xu   +7 more
wiley   +1 more source

Novel methanotroph diversity evidenced by molecular characterization of particulate methane monooxygenase A (pmoA) genes in a biogas reactor

Microbiological Research, 2009
The present study for the first time investigated the diversity of methanotrophs in a biogas reactor running on cattle dung by sequence analysis of the "functional" gene, particulate methane monooxygenase A (pmoA). Community structure was determined by operational taxonomic unit (OTU) phylogenetic analyses of 396 clones belonging to pmoA library.
Rastogi, Gurdeep, Ranade, Dilip R., Yeole, Tulshiram Y., Gupta, Arvind K., Patole, Milind S., Shouche, Yogesh S.   +5 more
openaire   +2 more sources

Marine organic aerosol at Mace Head: effects from phytoplankton and source region variability [PDF]

Atmospheric Chemistry and Physics
Organic aerosol (OA) is recognized as a significant component of particulate matter (PM), yet their specific composition and sources, especially over remote areas, remain elusive due to the overall scarcity of high-resolution online data.
E. Chevassus, K. N. Fossum, D. Ceburnis, L. Lei, C. Lin, C. Lin, W. Xu, W. Xu, C. O'Dowd, J. Ovadnevaite   +9 more
doaj   +1 more source

Current advances in molecular methods for detection of nitrite-dependent anaerobic methane oxidizing bacteria in natural environments [PDF]

, 2016
Nitrite-dependent anaerobic methane oxidation (n-damo) process uniquely links microbial nitrogen and carbon cycles. Research on n-damo bacteria progresses quickly with experimental evidences through enrichment cultures.
Chen, Jing, Dick, Richard, Gu, Ji-Dong, Lin, Jih-Gaw   +3 more
core   +1 more source