Results 101 to 110 of about 22,929 (210)

NITRIFICATION AND NITRIFYING BACTERIA IN A COASTAL MICROBIAL MAT

open access: yesFrontiers in Microbiology, 2015
The first step of nitrification, the oxidation of ammonia to nitrite, can be performed by ammonia-oxidizing archaea (AOA) or ammonium-oxidizing bacteria (AOB).
Haoxin eFan   +3 more
doaj   +1 more source

Mating increased the number of TH-positive neurons in the AOB of BALB/c mice.

open access: yes, 2013
Sagittal sections through the AOB of: BALB/c female 2 days following mating (A, B); BALB/c female 9 days following mating (C, D); C57BL/6 female exposed to male bedding (day 0) without mating (E-G).
Ronak Patel (418669)   +5 more
core   +1 more source

Spatial distribution of ammonia-oxidizing archaea and bacteria across eight freshwater lakes in sediments from Jiangsu of China

open access: yesJournal of Limnology, 2014
Ammonia-oxidizingarchaea (AOA) and ammonia-oxidizing bacteria (AOB) play an important role innitrogen transformation in freshwater sediments. However, it is still unclear towhat extent the distribution patterns of these microorganisms are affected bythe ...
Xu Sun   +7 more
doaj   +1 more source

The effects of climate, catchment land use and local factors on the abundance and community structure of sediment ammonia-oxidizing microorganisms in Yangtze lakes

open access: yesAMB Express, 2017
Ammonia-oxidizing archaea (AOA) and bacteria (AOB) play important roles in regulating the nitrification process in lake ecosystems. However, the relative effects of climate, catchment land use and local conditions on the sediment ammonia-oxidizing ...
Xiaoliang Jiang   +4 more
doaj   +1 more source

Correlation between nitrite accumulation and the concentration of AOB in a nitritation reactor

open access: yes, 2014
Nitritation is an innovative biological nitrogen removal method in wastewater, and it has the advantages of energy and economy. The correlation between a nitrite conversion rate and the gene copy numbers of ammonia oxidizing bacteria (AOB) in a ...
Im, Jiyeol   +4 more
core   +1 more source

The ecological dichotomy of ammonia-oxidizing archaea and bacteria in the hyper-arid soils of the Antarctic Dry Valleys

open access: yesFrontiers in Microbiology, 2014
The McMurdo Dry Valleys of Antarctica are considered to be one of the most physically and chemically extreme terrestrial environments on the Earth. However, little is known about the organisms involved in nitrogen transformations in these environments ...
Catarina Maria Magalhães   +5 more
doaj   +1 more source

In vitro bulb development in shallot (Allium cepa L. Aggregatum Group): effects of anti-gibberellins, sucrose and light

open access: yes, 2002
DOI:10.1093/aob/mcf063International ...
Esnault, Florence   +3 more
core   +1 more source

Partial hybridization in wide crosses between cultivated sunflower and the perennial Helianthus species H. mollis and H. orgyalis

open access: yes, 2002
DOI: 10.1093/aob.2002.mcf003International ...
Kaan, F.   +4 more
core   +1 more source

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