Results 1 to 10 of about 12,786 (254)

The effect of stocking density and the application of Nitrobacter as ammonia decomposer in aquaponics system of Clarias gariepinus with water spinach (Ipomoea aquatica) [PDF]

open access: yesIraqi Journal of Veterinary Sciences, 2020
This study aimed to determine the effect of Nitrobacter bacteria on specific growth rate (SGR), survival rate (SR), and feed convertion ratio (FCR) of African catfish (Clarias gariepinus) in aquaponics systems.
Adinda Taragusti   +2 more
doaj   +2 more sources

Enrichment and identification of a moderately acidophilic nitrite-oxidizing bacterium [PDF]

open access: yesWater Research X
This study enriched a novel nitrite-oxidizing bacterium (NOB, ‘Candidatus Nitrobacter acidophilus’) in a laboratory reactor operating at pH 4.5 for treating low-strength ammonia wastewater. Batch experiments showed that ‘Ca. N.
Jun Xia   +5 more
doaj   +2 more sources

Competition betweenNitrospira spp. andNitrobacter spp. in nitrite-oxidizing bioreactors [PDF]

open access: yesBiotechnology and Bioengineering, 2006
In this work the question was addressed if in nitrite-oxidizing activated sludge systems the environmental competition between Nitrobacterspp. and Nitrospira spp., which only recently has been discovered to play a role in these systems, is affected by ...
Regina Nogueira, Luis F Melo
exaly   +4 more sources

Isolation and characterization of pure cultures for metabolizing 1,4-dioxane in oligotrophic environments [PDF]

open access: yesWater Science and Technology
1,4-Dioxane concentration in most contaminated water is much less than 1 mg/L, which cannot sustain the growth of most reported 1,4-dioxane-metabolizing pure cultures.
Ermias Gebrekrstos Tesfamariam   +7 more
doaj   +2 more sources

Variation of Microorganisms and Water Quality, and Their Impacts on the Production of Penaeus vannamei in Small-Scale Greenhouse Ponds [PDF]

open access: yesMicroorganisms
To study the factors affecting Penaeus vannamei production in small-scale greenhouse ponds, four ponds in Jiangmen, Guangdong Province, China were selected.
Siyu Wu   +9 more
doaj   +2 more sources

Divergent bacterial landscapes: unraveling geographically driven microbiomes in Atlantic cod [PDF]

open access: yesScientific Reports
Establishing microbiome signatures is now recognized as a critical step toward identifying genetic and environmental factors shaping animal-associated microbiomes and informing the health status of a given host.
Fanny Fronton   +3 more
doaj   +2 more sources

Radiotolerance of N-cycle bacteria and their transcriptomic response to low-dose space-analogue ionizing irradiation [PDF]

open access: yesiScience
Summary: The advancement of regenerative life support systems (RLSS) is crucial to allow long-distance space travel. Within the Micro-Ecological Life Support System Alternative (MELiSSA), efficient nitrogen recovery from urine and other waste streams is ...
Tom Verbeelen   +9 more
doaj   +2 more sources

Lack of Distinction Between Nitrobacter agilis and Nitrobacter winogradskyi [PDF]

open access: yesJournal of Bacteriology, 1971
No adequate criteria were established to distinguish between Nitrobacter agilis and N. winogradskyi . However, very gentle preparative techniques permitted demonstration of flagella in N. agilis .
B, BOON, H, LAUDELOUT
openaire   +5 more sources

Insight Into the Role of PGPR in Sustainable Agriculture and Environment

open access: yesFrontiers in Sustainable Food Systems, 2021
A multitude of roles is played by microbes in food and agriculture that include nutrient cycling and management, organic matter decomposition and fermentation. Plant growth promoting rhizobacteria (PGPR), representing microbial groups and with ability of
Pratikhya Mohanty   +4 more
doaj   +1 more source

Comparative studies on membrane proteins of Nitrobacter hamburgensis and Nitrobacter winogradskyi [PDF]

open access: yesFEMS Microbiology Letters, 1985
The inner membranes (i.e. cytoplasmic and intracytoplasmic membranes, IM) of autotrophically, mixotrophically, and heterotrophically grown cells of Nitrobacter hamburgensis were characterized with respect to their nitrite oxidase activity, density, and protein pattern as revealed by two-dimensional gel electrophoresis.
Karin Milde, Eberhard Bock
openaire   +2 more sources

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