nifH gene expression and diversity in geothermal springs of Tengchong, China [PDF]
Frontiers in Microbiology, 2022 Terrestrial hot springs have been suggested to harbor diverse diazotrophic lineages by using DNA-based nifH gene phylogenetic analysis. However, only a small amount of diazotrophs were ever confirmed to perform nitrogen fixation.
Zhao-Qi Song +6 more
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Seasonal and long-term effects of nutrient additions and liming on the nifH gene in cerrado soils under native vegetation [PDF]
iScience, 2021 Summary: Biological nitrogen fixation (BNF) represents the main input source of N in tropical savannas. BNF could be particularly important for Brazilian savannas (known as Cerrado) that show a highly conservative N cycle.
Rafaella Silveira +7 more
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A comprehensive evaluation of PCR primers to amplify the nifH gene of nitrogenase. [PDF]
PLoS ONE, 2012 The nifH gene is the most widely sequenced marker gene used to identify nitrogen-fixing Bacteria and Archaea. Numerous PCR primers have been designed to amplify nifH, but a comprehensive evaluation of nifH PCR primers has not been performed. We performed
John Christian Gaby, Daniel H Buckley
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Genetic analysis of the NifM dependence of the nitrogenase iron proteins [PDF]
mBioNifH maturation in certain diazotrophic bacteria depends on NifM, a protein with a PpiC-isomerase domain. Intriguingly, the putative proline substrate for NifM is present in NifH proteins from strains lacking nifM, raising questions regarding the actual ...
Zhuoting Xie +6 more
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mSphere, 2021 Nitrogen fixation, a distinct process incorporating the inactive atmospheric nitrogen into the active biological processes, has been a major topic in biological and geochemical studies.
Kazumori Mise +3 more
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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
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Nitrogenase gene amplicons from global marine surface waters are dominated by genes of non-cyanobacteria. [PDF]
PLoS ONE, 2011 Cyanobacteria are thought to be the main N(2)-fixing organisms (diazotrophs) in marine pelagic waters, but recent molecular analyses indicate that non-cyanobacterial diazotrophs are also present and active.
Hanna Farnelid +8 more
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Nodulation of Shepherdia ×utahensis ‘Torrey’ and the Diversity of Symbiotic Frankia Strains
HortScience, 2021 Shepherdia ×utahensis ‘Torrey’ (hybrid buffaloberry) is an actinorhizal plant that can form symbiotic nodules with the actinobacterial genus Frankia. However, little research has been conducted to investigate the presence of Frankia in their nodules and ...
Ji-Jhong Chen +4 more
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Legume Science, 2020 Selection of dry bean (Phaseolus vulgaris L.) cultivars based on their symbiotic nitrogen fixation (SNF) could reduce the fertilizer N requirement. The nifH gene in the bacterial symbiont facilitates the organic N assimilation by N‐assimilatory enzymes ...
Debankur Sanyal +4 more
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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
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