Results 71 to 80 of about 6,257 (199)

The Effects of Microplastics and Additives on Ecosystem Function, Structure, and Signaling

Global Change Biology, Volume 32, Issue 8, August 2026.
Microplastics disrupt ecosystem signaling through olfactory traps, altering predator–prey signaling and disrupting microbial communication and quorum sensing. ABSTRACT Microplastics (MPs) and their associated chemical additives are pervasive contaminants whose ecological impacts extend beyond organismal toxicity to fundamentally alter ecosystem ...
Sally Gaw, Maia Raymundo, Ciemon F. Caballes   +2 more
wiley   +1 more source

Nucleotide alignment for the 370-sequence amoA tree

, 2015
Nucleotide alignment (codon positions 1 and 2) for the 370-sequence amoA ...
Kratsch, Christina, Christina Kratsch (429436), McHardy, Alice C., Williams, Tom A., T. Martin Embley (124611), Prosser, James I., Macqueen, Daniel J., Daniel J. Macqueen (39411), Alice C. McHardy (11363), James I. Prosser (194381), Embley, T. Martin, Gubry-Rangin, Cécile, Tom A. Williams (124587), Cécile Gubry-Rangin (3322182)   +13 more
core   +1 more source

Conversion of upland to paddy field specifically alters the community structure of archaeal ammonia oxidizers in an acid soil [PDF]

Biogeosciences, 2013
The function of ammonia-oxidizing archaea (AOA) and bacteria (AOB) depends on the major energy-generating compounds (i.e., ammonia and oxygen). The diversification of AOA and AOB communities along ecological gradients of substrate availability in a ...
M. S. Alam, G. D. Ren, L. Lu, Y. Zheng, X. H. Peng, Z. J. Jia   +5 more
doaj   +1 more source

Substrate‐driven enrichment and eDNA metabarcoding reveal indigenous microbiomes in mangrove sediments with potential for ammonia and nitrite transformation

Journal of the World Aquaculture Society, Volume 57, Issue 4, August 2026.
Abstract Effective management of ammonia and nitrite remains a major challenge in intensive shrimp aquaculture, where excessive nitrogen loading compromises water quality and animal health. Indigenous microbial communities inhabiting mangrove sediments are widely considered potential sources of ammonia‐ and nitrite‐transforming microorganisms; however,
Muhamad Amin, Hussein Taha, Norhayati Ahmad, Ledhyane Ika Harlyan, Agustina Agustina, Ren Fitriadi, Supono Supono, Takaomi Arai   +7 more
wiley   +1 more source

Diversity Analysis for Archaeal amoA Gene in Marine Sediment of Svalbard, Arctic Circle [PDF]

The Korean Journal of Microbiology, 2014
The ecosystem of the Arctic region has been increasingly affected by global warming. Archaeal ammonia monooxygenase alpha subunit coding gene (amoA) which is a key enzyme for nitrification was used to investigate the effect of runoff water of ice melt on microbial community of nitrogen cycle.
Soo-Je Park, Sung-Keun Rhee
openaire   +1 more source

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

Changes in N-transforming archaea and bacteria in soil during the establishment of bioenergy crops. [PDF]

PLoS ONE, 2011
Widespread adaptation of biomass production for bioenergy may influence important biogeochemical functions in the landscape, which are mainly carried out by soil microbes.
Yuejian Mao, Anthony C Yannarell, Roderick I Mackie   +2 more
doaj   +1 more source

Chemical Speciation Defines Archaeal Ammonia‐Oxidizer Distribution in Yellowstone Hot Springs

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 7, July 2026.
Abstract The hot springs of Yellowstone National Park (YNP) provide a natural laboratory for investigating the influence of chemical speciation and energy availability on the distribution of microbes. Among 133 inorganic chemotrophic energy supplies, total dissolved ammonia oxidation was consistently one of the highest across 63 YNP hot spring samples.
Katelyn Weeks, Elizabeth Trembath‐Reichert, Jordyn Robare, R. Vince Debes II, Alta E. G. Howells, Everett Shock   +5 more
wiley   +1 more source

Underestimation of ammonia‐oxidizing bacteria abundance by amplification bias in amoA ‐targeted qPCR

Microbial Biotechnology, 2016
Summary Molecular methods to investigate functional groups in microbial communities rely on the specificity and selectivity of the primer set towards the target. Here, using rapid sand filters for drinking water production as model environment, we investigated the consistency of two commonly used quantitative
Arnaud Dechesne, Sanin Musovic, Alejandro Palomo, Vaibhav Diwan, Barth F. Smets   +4 more
openaire   +3 more sources

Impacts of edaphic factors on communities of ammonia-oxidizing archaea, ammonia-oxidizing bacteria and nitrification in tropical soils.

PLoS ONE, 2014
Nitrification is a key process in soil nitrogen (N) dynamics, but relatively little is known about it in tropical soils. In this study, we examined soils from Trinidad to determine the edaphic drivers affecting nitrification levels and community ...
Vidya de Gannes, Gaius Eudoxie, William J Hickey   +2 more
doaj   +1 more source