Results 81 to 90 of about 6,333 (204)

Combined effects of drip irrigation and biochar application on rhizosphere ammonia-oxidizing microorganisms

Guan'gai paishui xuebao
【Objective】Ammonia oxidation is a key process in soil nitrogen cycling and is influenced by various biotic and abiotic factors. This study investigated the interactive effects of biochar application and drip irrigation on ammonia-oxidizing microorganisms
Guo Jinxiu, Qiu Husen, Feng Miaomiao, Yu Haonan, Li Rongchao, Xu Huiqi, Liu Jieyun   +6 more
doaj   +1 more source

Nutritional Composition of African Catfish (Clarias gariepinus) in Ghana: Effects of Culture Conditions, Feed and Processing

Aquaculture, Fish and Fisheries, Volume 6, Issue 4, August 2026.
This review synthesizes current evidence on the nutritional composition of African catfish (Clarias gariepinus), with emphasis on Ghanaian aquaculture. The species is a valuable source of high‐quality protein, essential amino acids, minerals and vitamins, although lipid composition varies widely.
Amy Atter, Naomi Taye, Crossby Osei Tutu, Bernard Kwabena Asiedu, Reuben Acheampong, Hayford Ofori, Stephen Nketia, Richard Yaw Otwey, Christopher Galley, Frank Peget, Jackline Boateng, Patricia Mensah, Stacy Ayitey, Eric Dogbey, Seth Agyakwah, Wisdom Amoa‐Awua   +15 more
wiley   +1 more source

Exploring the potential for oxygen production by cable bacteria in the deep sediment through the investigation of amoA gene expression

, 2023
noneThis thesis aims to investigate the potential for oxygen production by cable bacteria in the deep sediment. To accomplish this, an indirect approach was used, specifically studying the expression of the amoA gene, belonging to the Nitrosomonas genus,
RRUCI, ERINDA
core  

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

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

Analysis and Quantification of Ammonia-Oxidizing Bacteria Community with amoA Gene in Sewage Treatment Plants

Journal of Microbiology and Biotechnology, 2012
The analysis and quantification of ammonia-oxidizing bacteria (AOB) is crucial, as they initiate the biological removal of ammonia-nitrogen from sewage. Previous methods for analyzing the microbial community structure, which involve the plating of samples or culture media over agar plates, have been inadequate because many microorganisms found in a ...
Sun Hwa, Hong, Hyun Duck, Jeong, Bongjin, Jung, Eun Young, Lee   +3 more
openaire   +2 more sources

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

Relationship of archaeal (AOA) and bacterial amoA abundance (AOB) with gross soil nitrification rates.

, 2014
The relationships between archaeal amoA copy numbers (AOA) and bacterial amoA copy numbers (AOB) with gross nitrification rates were marginally significant for AOA (p = 0.051) and AOB (p = 0.072).
Judith Prommer (517077), Tim Urich (49469), Stefan Sassmann (517082), Pierre Offre (517081), Barbara Kitzler (517083), Florian Hofhansl (517079), Christa Schleper (27900), Rebecca Clare Hood-Nowotny (517085), Daniela Trojan (517080), Wolfgang Wanek (517078), Gerhard Soja (517084)   +10 more
core   +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

Relative amoA gene abundance of Thaumarchaea and Bacteria in sampled freshwater (F1–F6) and marine (M) aquaria, assuming 1 and 2.5 copies of amoA gene per thaumarchaeal and bacterial cell, respectively.

, 2014
Relative amoA gene abundance of Thaumarchaea and Bacteria in sampled freshwater (F1–F6) and marine (M) aquaria, assuming 1 and 2.5 copies of amoA gene per thaumarchaeal and bacterial cell, respectively.
Nico Boon (169479), Siegfried E. Vlaeminck (579266), Mariela Mosquera (670533), Josh D. Neufeld (209428), Samik Bagchi (670532), Laura A. Sauder (209404)   +5 more
core   +1 more source