Results 31 to 40 of about 5,029 (176)
Scientific Reports, 2022 Biological nitrogen fixation (BNF) is the reduction of N2 into NH3 in a group of prokaryotes by an extremely O2-sensitive protein complex called nitrogenase. Transfer of the BNF pathway directly into plants, rather than by association with microorganisms,
Lucía Payá-Tormo +11 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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nifH gene expression and diversity in geothermal springs of Tengchong, China
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. In order to explore the compositions of active diazotrophic populations in hot springs, the in situ expression and diversity
Zhao-Qi Song +6 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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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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Frontiers in Microbiology, 2012 Biological soil crusts (biocrusts), which supply significant amounts of fixed nitrogen into terrestrial ecosystems worldwide (~33 Tg y-1), are likely to respond to changes in temperature and precipitation associated with climate change.
Chris M Yeager +5 more
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Constraining uncertainties of diazotroph biogeography from nifH gene abundance [PDF]
Limnology and Oceanography, 2022 AbstractMarine diazotrophs fix dinitrogen gas into bioavailable nitrogen that drives the ocean nitrogen cycle; yet, efforts to infer global diazotroph distributions have been limited by a sparsity of observations. In situ measurements of nifH gene abundance (essential for nitrogen fixation) are increasingly being used to inform the biogeography of ...
Simona Meiler +6 more
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Nucleotide sequence of the R.meliloti nitrogenase reductase (nifH) gene
Nucleic Acids Research, 1981 The nucleotide sequence of the structural gene (nifH) of nitrogenase reductase (Fe protein) from R.meliloti 41 with its flanking ends is reported. The amino acid sequence of nitrogenase reductase was deduced from the DNA sequence. The predicted R.meliloti nitrogenase reductase protein consists of 297 amino acid residues, has a molecular weight of 32 ...
I, Török, A, Kondorosi
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NifH and NifD sequences of heliobacteria: a new lineage in the nitrogenase phylogeny [PDF]
FEMS Microbiology Letters, 2005 We determined almost complete nifH and nifD genes from representatives of all recognized genera of heliobacteria, the strictly anaerobic phototrophs belonging to the low GC gram-positive bacteria. The heliobacterial sequences formed a highly supported monophyletic group that is clearly distinct from any known diazotrophs, in both NifH and NifD trees ...
Jigjiddorj, Enkh-Amgalan +2 more
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A clinical case of non-immune hydrops in a premature newborn with a chromosomal anomaly
Якутский медицинский журналThe article presents the features of diagnosis and dynamic monitoring of a premature baby with non-immune dropsy on the background of a chromosomal anomaly (Down syndrome). The data of scientific literature on the epidemiology and etiology of this disease
T. M. Cherkasova +4 more
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