Results 81 to 90 of about 4,509 (176)

Temporal variations of biological nitrogen fixation and diazotrophic communities associated with artificial seaweed farms

open access: yesFrontiers in Marine Science
Diazotrophic communities contribute inorganic nitrogen for the primary productivity of the marine environment by biological nitrogen fixation (BNF).
Pengbing Pei   +10 more
doaj   +1 more source

Nitrogenase genes in PCR and RT-PCR reagents: implications for studies of diversity of functional genes

open access: yesBioTechniques, 2003
Studies of the diversity of microorganisms in the environment have been facilitated by use of PCR and reverse transcription PCR (RT-PCR). Inhibition of the PCR by complex sample matrices and low abundance of some target microorganisms require the use of ...
Jonathan P. Zehr   +4 more
doaj   +1 more source

Endophytic Expression of nif Genes of Azoarcus sp. Strain BH72 in Rice Roots

open access: yesMolecular Plant-Microbe Interactions, 1999
Transcriptional fusions of gusA and gfp to the nifH gene as well as immunogold labeling with antibodies against the iron protein of nitrogenase revealed high nitrogenase gene expression levels of the endophyte Azoarcus sp.
Tanja Egener   +2 more
doaj   +1 more source

Diversidade de bactérias diazotróficas endofíticas associadas a plantas de milho Diversity of diazotrophic endophytic bacteria associated with maize plants

open access: yesRevista Brasileira de Ciência do Solo, 2007
Bactérias diazotróficas endofíticas são capazes de promover o crescimento do milho por meio da fixação biológica do nitrogênio (FBN) ou pela produção de fitormônios.
Luiz Fernando Wurdig Roesch   +4 more
doaj   +1 more source

Effects of reduced nitrogen on the nifH-harboring soil microbiome in a soybean-maize strip intercropping system

open access: yesFrontiers in Microbiology
IntroductionNitrogen (N) is a core limiting factor for crop growth, with approximately 50% of global food production relying on chemical N fertilizer inputs.
Fang Liu   +16 more
doaj   +1 more source

Molecular characterization of Azotobacter spp. nifH gene Isolated from marine source

open access: yesAfrican Journal of Biotechnology, 2011
The nifH gene sequence of the nitrogen-fixing bacterium Azotobacter spp. was determined with the use of polymerase chain reaction (PCR). The Azotobacter species was isolated from marine source in two different seasons. They were cultivated under laboratory conditions using Nitrogen free Azotobacter specific medium. We observed that they were present in
Rajeswari, K, Mangai, KG
openaire   +1 more source

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