Results 31 to 40 of about 4,509 (176)
Genetics in methanogens: transposon insertion mutagenesis of a Methanococcus maripaludis nifH gene [PDF]
Journal of Bacteriology, 1995 We designed a transposon insertion mutagenesis system for Methanococcus species and used it to make mutations in and around a nifH gene in Methanococcus maripaludis. The transposon Mudpur was constructed with a gene for puromycin resistance that is expressed and selectable in Methanococcus species. A 15.6-kb nifH region from M.
C E, Blank, P S, Kessler, J A, Leigh
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Azonexus hydrophilus sp. nov., a nifH gene-harbouring bacterium isolated from freshwater [PDF]
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY, 2008 Three Gram-negative, non-pigmented, rod-shaped, facultatively aerobic bacterial strains, designated d8-1T, d8-2 and IMCC1716, were isolated from a freshwater spring sample and a eutrophic freshwater pond. Based on characterization using a polyphasic approach, the three strains showed highly similar phenotypic, physiological and genetic characteristics.
Jui-Hsing, Chou +5 more
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Microbiome of Trichodesmium Colonies from the North Pacific Subtropical Gyre
Frontiers in Microbiology, 2017 Filamentous diazotrophic Cyanobacteria of the genus Trichodesmium, often found in colonial form, provide an important source of new nitrogen to tropical and subtropical marine ecosystems.
Mary R. Gradoville +4 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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Nucleotide sequence of a cyanobacterial nifH gene coding for nitrogenase reductase [PDF]
Proceedings of the National Academy of Sciences, 1980 The nucleotide sequence of nifH , the structural gene for nitrogenase reductase (component II or Fe protein of nitrogenase) from the cyanobacterium Anabaena 7120 has been determined. Also reported are 194 bases of the 5′-flanking sequence and 170 bases of the 3′-flanking sequence.
M, Mevarech, D, Rice, R, Haselkorn
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Possible association of diazotrophs with marine zooplankton in the Pacific Ocean
MicrobiologyOpen, 2016 Dinitrogen fixation, the biological reduction in N2 gas to ammonia contributes to the supply of new nitrogen in the surface ocean. To understand the diversity and abundance of potentially diazotrophic (N2 fixing) microorganisms associated with marine ...
Kazi Md. Azimuddin +9 more
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Al-Kauniyah Jurnal Biologi, 2016 Abstrak Penambatan nitrogen oleh bakteri rhizosfer dapat dimanfaatkan untuk menyiasati dampak salinitas pada tanah sawah pesisir. Kemampuan tersebut disebabkan oleh aktivitas nitrogenase yang disandikan gen nifH pada komponen II.
Dwi Ningsih Susilowati, Mamik Setyowati
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Diversity pattern of nitrogen fixing microbes in nodules of Trifolium arvense (L.) at different initial stages of ecosystem development [PDF]
Biogeosciences, 2013 Legumes can be considered as pioneer plants during ecosystem development, as they form a symbiosis with different nitrogen fixing rhizobia species, which enable the plants to grow on soils with low available nitrogen content.
M. Schloter +6 more
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Comparison ofnifHGene Pools in Soils and Soil Microenvironments with Contrasting Properties [PDF]
Applied and Environmental Microbiology, 2001 ABSTRACTThe similarities and differences in the structures of thenifHgene pools of six different soils (Montrond, LCSA-p, Vernon, Dombes, LCSA-c, and Thysse Kaymor) and five soil fractions extracted from LCSA-c were studied. Bacterial DNA was directly extracted from the soils, and a region of thenifHgene was amplified by PCR and analyzed by restriction.
Poly, F. +4 more
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Dissolved organic matter stimulates N2 fixation and nifH gene expression in Trichodesmium [PDF]
FEMS Microbiology Letters, 2020 ABSTRACT Mixotrophy, the combination of heterotrophic and autotrophic nutrition modes, is emerging as the rule rather than the exception in marine photosynthetic plankton. Trichodesmium, a prominent diazotroph ubiquitous in the (sub)tropical oceans, is generally considered to obtain energy via autotrophy.
Benavides, Mar +7 more
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