Relationships between soil physicochemical properties and nitrogen fixing, nitrifying and denitrifying under varying land-use practices in the northwest region of Argentina [PDF]
, 2018 The aim of this study was to evaluate the response pattern of diazotrophic microbes, denitrifiers and nitrifiers to different types of land use management, such as soybean monoculture (M) during 5 and 24 years (M5 and M24) and soybean-maize rotation (R ...
Huidobro, Jorgelina +5 more
core +1 more source
Cloning and sequencing of the nifH gene ofDesulfovibrio gigas [PDF]
FEMS Microbiology Letters, 1989 The Desulfovibrio gigas nifH gene has been cloned and sequenced. It consists of an open-reading frame of 822 base pairs encoding a 274 amino acid polypeptide. A potential ntrA-dependent promotor sequence is present. The gene lacks an upstream activator sequence homologous to those often found in nif genes subject to activation by nifA.
H M, Kent, M, Buck, D J, Evans
openaire +2 more sources
The response of diazotrophs to nutrient amendment in the South China Sea and western North Pacific [PDF]
Biogeosciences, 2022 The availability of iron (Fe) and phosphorus (P) has been shown to be a key factor regulating rates of nitrogen fixation in the western subtropical Pacific.
Z. Wen +13 more
doaj +1 more source
Diverse and Novel nifH and nifH -Like Gene Sequences in the Deep-Sea Methane Seep Sediments of the Okhotsk Sea [PDF]
Applied and Environmental Microbiology, 2009 ABSTRACT Diverse nifH and nifH -like gene sequences were obtained from the deep-sea surface sediments of the methane hydrate-bearing Okhotsk Sea. Some sequences formed novel families of the NifH or NifH-like proteins, of currently unresolved bacterial or archaeal origin.
Hongyue, Dang +3 more
openaire +2 more sources
High diversity of nitrogen-fixing bacteria in the upper reaches of the Heihe River, northwestern China [PDF]
Biogeosciences, 2013 Vegetation plays a key role in water conservation in the southern Qilian Mountains (northwestern China), located in the upper reaches of the Heihe River. Nitrogen-fixing bacteria are crucial for the protection of the nitrogen supply for vegetation in the
X. S. Tai +8 more
doaj +1 more source
Niche differentiation in nitrogen metabolism among methanotrophs within an operational taxonomic unit [PDF]
, 2014 Background: The currently accepted thesis on nitrogenous fertilizer additions on methane oxidation activity assumes niche partitioning among methanotrophic species, with activity responses to changes in nitrogen content being dependent on the in situ ...
Boon, Nico +5 more
core +3 more sources
Novel Methanotrophs of the Family Methylococcaceae from Different Geographical Regions and Habitats [PDF]
, 2015 Terrestrial methane seeps and rice paddy fields are important ecosystems in the methane cycle. Methanotrophic bacteria in these ecosystems play a key role in reducing methane emission into the atmosphere.
Birkeland, Nils-Kåre +7 more
core +2 more sources
GuaB Activity Is Required in Rhizobium tropici During the Early Stages of Nodulation of Determinate Nodules but Is Dispensable for the Sinorhizobium meliloti–Alfalfa Symbiotic Interaction [PDF]
, 2005 The guaB mutant strain Rhizobium tropici CIAT8999-10T is defective in symbiosis with common bean, forming nodules that lack rhizobial content. In order to investigate the timing of the guaB requirement during the nodule formation on the host common ...
Aguilar, Orlando Mario +4 more
core +4 more sources
Demonstration of a multi-technique approach to assess glacial microbial populations in the field [PDF]
, 2016 The ability to perform microbial detection and characterization in-field at extreme environments, rather than on returned samples, has the potential to improve the efficiency, relevance and quantity of data from field campaigns.
Barnett, Megan J. +4 more
core +5 more sources
Microbial protein out of thin air : fixation of nitrogen gas by an autotrophic hydrogen-oxidizing bacterial enrichment [PDF]
, 2020 For the production of edible microbial protein (MP), ammonia generated by the Haber-Bosch process or reclaimed ammonia from waste streams is typically considered as the nitrogen source.
Bernaerts, Kristel +6 more
core +2 more sources