Results 61 to 70 of about 13,062 (232)
Applied and Environmental Microbiology, 2023 Nitrification is a key process in the global nitrogen cycle. Complete ammonia oxidizers (comammox) were discovered recently, and only three enrichment cultures and one pure culture have been characterized with respect to activity and growth under ...
Sabita Ghimire-Kafle +2 more
semanticscholar +1 more source
Structure and evolution of chlorate reduction composite transposons. [PDF]
, 2013 UnlabelledThe genes for chlorate reduction in six bacterial strains were analyzed in order to gain insight into the metabolism. A newly isolated chlorate-reducing bacterium (Shewanella algae ACDC) and three previously isolated strains (Ideonella ...
Clark, Iain C +3 more
core +2 more sources
A novel marine nitrite-oxidizing Nitrospira species from Dutch coastal North Sea water
Frontiers in Microbiology, 2013 Marine microorganisms are important for the global nitrogen cycle, but marine nitrifiers, especially aerobic nitrite-oxidizers, remain largely unexplored.
Suzanne Caroline Marianne Haaijer +7 more
doaj +1 more source
The occurrence and role of Nitrospira in nitrogen removal systems
Bioresource Technology, 2020 Application of the modern microbial techniques changed the paradigm about the microorganisms performing nitrification. Numerous investigations recognized representatives of the genus Nitrospira as a key and predominant nitrite-oxidizing bacteria in biological nutrient removal systems, especially under low dissolved oxygen and substrate conditions.
Mohamad-Javad Mehrani +4 more
openaire +2 more sources
Frontiers in Microbiology, 2018 Freshwater mussel assemblages of the Upper Mississippi River (UMR) sequester tons of ammonia- and urea-based biodeposits each day and aerate sediment through burrowing activities, thus creating a unique niche for nitrogen (N) cycling microorganisms. This
Ellen M. Black, Craig L. Just
doaj +1 more source
Frontiers in Microbiology, 2021 Autotrophic nitrification is regulated by canonical ammonia-oxidizing archaea (AOA) and bacteria (AOB) and nitrite-oxidizing bacteria (NOB). To date, most studies have focused on the role of canonical ammonia oxidizers in nitrification while neglecting ...
Ping Sun +5 more
doaj +1 more source
Ammonia-oxidizing archaea and complete ammonia-oxidizing Nitrospira in water treatment systems
Water Research X, 2022 Highlights • AOA and comammox Nitrospira dominate low ammonia engineered environments.• Ammonia and metal levels, along with temperature determine the niches of nitrifiers.• Contributions to nitrification cannot be inferred solely by AOA or AOB ...
Sarah Al-Ajeel +4 more
semanticscholar +1 more source
mBio, 2019 Nitrification, the oxidative process converting ammonia to nitrite and nitrate, is driven by microbes and plays a central role in the global nitrogen cycle.
Arda Gülay +7 more
doaj +1 more source
Bacterial Resilience and Vulnerability to Neonicotinoid Seed Treatments in Soil: Short‐Term Community Responses [PDF]
Environ Microbiol RepThis study investigated short‐term impacts of seed treatment‐derived neonicotinoids on soil bacterial communities in wheat‐planted microcosms. Over 10 days, significant Day and Day × Treatment effects on bacterial community structure were observed, with selective enrichment and suppression of specific taxa despite limited overall changes in alpha ...
Akter S +3 more
europepmc +2 more sources
Metagenomic recovery of two distinct comammox Nitrospira from the terrestrial subsurface [PDF]
Environmental Microbiology, 2019 Summary The recently discovered comammox process encompasses both nitrification steps, the aerobic oxidation of ammonia and nitrite, in a single organism. All known comammox bacteria are affiliated with Nitrospira sublineage II and can be grouped into two distinct clades ...
Poghosyan, L. +8 more
openaire +6 more sources