Results 81 to 90 of about 2,518,592 (205)

Archaeal Tetraether Lipids as Tracers for Past Marine Environmental Change

Paleoceanography and Paleoclimatology, Volume 41, Issue 7, July 2026.
Abstract Archaea are single‐celled microorganisms that are abundant in marine environments and play a key role in the carbon and nitrogen cycles. Archaea can biosynthesize a wide variety of isoprenoid membrane lipids, including isoprenoid glycerol dibiphytanyl glycerol tetraethers (isoGDGTs).
Felix J. Elling, Gordon N. Inglis, Nina Davtian, Sarah J. Hurley, B. David A. Naafs, Lauren K. O'Connor, Richard D. Pancost, Francien Peterse, Ronnakrit Rattanasriampaipong, Addison Rice, Florence Schubotz, Jaap S. Sinninghe Damsté, Lars Wörmer, Alexandra Auderset, Kevin W. Becker, Melissa A. Berke, Peter K. Bijl, Cindy De Jonge, Liang Dong, Bella J. Duncan, Tom Dunkley Jones, Pierrick Fenies, Susanne Fietz, Sze Ling Ho, Arnaud Huguet, Carme Huguet, Jérôme Kaiser, Xiao‐Lei Liu, Gesine Mollenhauer, Sebastian Naeher, Ann Pearson, Kasia K. Śliwińska, Appy Sluijs, Claudia Sosa‐Montes de Oca, Qian Tian, Jessica E. Tierney, Devika Varma, Wenjie Xiao, Yi Ge Zhang, Xiaoxiao Zhao   +39 more
wiley   +1 more source

Water Pulses and Greenhouse Gas Emissions During Summer Fallow in a Semiarid Environment

European Journal of Soil Science, Volume 77, Issue 4, July/August 2026.
ABSTRACT Rainfall‐driven pulses of greenhouse gas (GHG) emissions are key but often overlooked components of the annual carbon and nitrogen budgets. This study aimed to quantify the effect of three barley‐based production systems on soil carbon and nitrogen dynamics during the summer fallow, with particular emphasis on the impact of rainfall events on ...
Francisco Cafaro La Menza, Adrián Aladrén Pérez, Laura B. Martínez‐García, Victoria Lafuente Rosales, Ana C. Bielsa, Fernando Gomez, Cesar Romano, Jorge Álvaro‐Fuentes   +7 more
wiley   +1 more source

Predominance of ammonia-oxidizing archaea and nirK-gene-bearing denitrifiers among ammonia-oxidizing and denitrifying populations in sediments of a large urban eutrophic lake (Lake Donghu)

, 2013
The coupled nitrification-denitrification process plays a pivotal role in cycling and removal of nitrogen in aquatic ecosystems. In the present study, the communities of ammonia oxidizers and denitrifiers in the sediments of 2 basins (Guozhenghu Basin ...
Song, Chunlei, Zhou, Yiyong, Zhou, YY (reprint author), Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, 7 Donghu South Rd, Wuhan, Hubei, Peoples R China., Cao, Xiuyun, Hou, Jie   +4 more
core   +1 more source

Short-Term Effect of Elevated Temperature on the Abundance and Diversity of Bacterial and Archaeal amoA Genes in Antarctic Soils

Journal of Microbiology and Biotechnology, 2013
Global warming will have far-reaching effects on our ecosystem. However, its effects on Antarctic soils have been poorly explored. To assess the effects of warming on microbial abundance and community composition, we sampled Antarctic soils from the King George Island in the Antarctic Peninsula and incubated these soils at elevated temperatures of 5°C ...
Jiwon, Han, Jaejoon, Jung, Minsuk, Park, Seunghun, Hyun, Woojun, Park   +4 more
openaire   +2 more sources

Diversity and Abundance of Ammonia-Oxidizing Bacteria and Archaea in a Freshwater Recirculating Aquaculture System

Hayati Journal of Biosciences, 2018
The role of ammonia-oxidizing bacteria and archaea was evaluated using amoA gene in a freshwater recirculating system. Broken earthen pot pieces (BEP) were used as filter bed material.
Cherita Devi Khangembam, Jai Gopal Sharma, Rina Chakrabarti   +2 more
doaj   +1 more source

Temperature‐Dependent Effects of Laboratory‐Heated Dissolved Organic Matter on Aquatic Microbiome Composition and Nitrogen Cycling Dynamics

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 6, June 2026.
Abstract Wildfires generate partially combusted biomass that mobilizes to aquatic ecosystems as dissolved pyrogenic organic matter (dPyOM) in runoff, where it can impact surface water quality. However, the influence of dPyOM on aquatic microbiome composition, functional gene distribution, and biogeochemical processes remains poorly understood, with ...
Saraf Islam Promi, Nichole M. Grey, Bailley Hardage, Courtney M. Gardner   +3 more
wiley   +1 more source

Genetic and transcriptional profiles of ammonia oxidizing communities in Bohai sediments: abundance, activity, and environmental correlations

Frontiers in Microbiology
Ammonia oxidation, a crucial part in nitrogen cycle, is thought to be jointly driven by ammonia-oxidizing archaea (AOA), ammonia-oxidizing bacteria (AOB), and complete ammonia oxidation (comammox) in the ocean.
Yining Jiang, Xue Lou, Mingyang Wang, Minggang Zheng, Zhiyao Wang, Hui Chen   +5 more
doaj   +1 more source

Marine Microbial Gene Abundance and Community Composition in Response to Ocean Acidification and Elevated Temperature in Two Contrasting Coastal Marine Sediments

Frontiers in Microbiology, 2017
Marine ecosystems are exposed to a range of human-induced climate stressors, in particular changing carbonate chemistry and elevated sea surface temperatures as a consequence of climate change. More research effort is needed to reduce uncertainties about
Ashleigh R. Currie, Karen Tait, Helen Parry, Beatriz de Francisco-Mora, Natalie Hicks, A. Mark Osborn, A. Mark Osborn, Steve Widdicombe, Henrik Stahl, Henrik Stahl   +9 more
doaj   +1 more source

Elucidating the Functional and Taxonomic Diversity of Soil Microbial Communities From Three Commercial Soybean Farms in South Africa

Environmental Microbiology Reports, Volume 18, Issue 3, June 2026.
Prior to inoculation of soybeans, South African soils contain no Bradyhizobia that nodulate and fix nitrogen in soybeans. Soybean cultivation with prolonged inoculation resulted in the establishment and dominance of Bradyrhizobia in three soybean farms in South Africa as revealed by a microbial community study using shotgun metagenomics. ABSTRACT Prior
Khumbudzo Ndhlovu, Adeola Salawu‐Rotimi, Francina L. Bopape, Prudence N. Mtsweni, Olubukola Oluranti Babalola, Ahmed Idris Hassen   +5 more
wiley   +1 more source

Abundances of archaeal and bacterial amoA genes in the surface sediment samples treated with different temperatures.

, 2014
Data are shown as Means±SD (n = 3). Different uppercase (archaeal amoA gene) and lowercase letters (bacterial amoA gene) refer to significant differences between different temperature treatments ...
Dayong Zhao (588198), Zhongbo Yu (156081), Rui Huang (141490), Qinglong L. Wu (176518), Jin Zeng (196246)   +4 more
core   +1 more source