Results 1 to 10 of about 9,744 (190)
A critical role of an oxygen-responsive gene for aerobic nitrogenase activity in Azotobacter vinelandii and its application to Escherichia coli [PDF]
Scientific Reports, 2022 Since nitrogenase is irreversibly inactivated within a few minutes after exposure to oxygen, current studies on the heterologous expression of nitrogenase are limited to anaerobic conditions.
Ren Takimoto +6 more
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Antenna Modification Leads to Enhanced Nitrogenase Activity in a High Light-Tolerant Cyanobacterium [PDF]
mBio, 2021 Biological nitrogen fixation is an energy-intensive process that contributes significantly toward supporting life on this planet. Among nitrogen-fixing organisms, cyanobacteria remain unrivaled in their ability to fuel the energetically expensive ...
Anindita Bandyopadhyay +4 more
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The effect of oxygen concentration and temperature on nitrogenase activity in the heterocystous cyanobacterium Fischerella sp. [PDF]
Scientific Reports, 2017 Heterocysts are differentiated cells formed by some filamentous, diazotrophic (dinitrogen-fixing) cyanobacteria. The heterocyst is the site of dinitrogen fixation providing the oxygen-sensitive nitrogenase with a low-oxygen environment.
Lucas J. Stal
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Using synthetic biology to increase nitrogenase activity. [PDF]
Microb Cell Fact, 2016 Nitrogen fixation has been established in protokaryotic model Escherichia coli by transferring a minimal nif gene cluster composed of 9 genes (nifB, nifH, nifD, nifK, nifE, nifN, nifX, hesA and nifV) from Paenibacillus sp. WLY78. However, the nitrogenase activity in the recombinant E.
Li XX, Liu Q, Liu XM, Shi HW, Chen SF.
europepmc +4 more sources
Suppression of hesA mutation on nitrogenase activity in Paenibacillus polymyxa WLY78 with the addition of high levels of molybdate or cystine [PDF]
PeerJ, 2019 The diazotrophic Paenibacillus polymyxa WLY78 possesses a minimal nitrogen fixation gene cluster consisting of nine genes (nifB nifH nifD nifK nifE nifN nifX hesA and nifV).
Xiaomeng Liu +3 more
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Environmental and Experimental BotanyBiological N2 fixation performed by moss-associated cyanobacteria is among the main sources of new nitrogen (N) input in pristine subarctic ecosystems.
Jørgen Ulrik Graudal Levinsen +3 more
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Soil nifH-harboring community assemblage varies across pecan cultivars [PDF]
Frontiers in MicrobiologyIntroductionThis study focused on three pecan (Carya illinoinensis) cultivars (‘Pawnee’, ‘Mahan’, and ‘Jinhua’), systematically assessing variations in soil nitrogenase activity, characteristics traits of nifH-harboring microbial communities across these
Junping Liu +5 more
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Ecological Indicators, 2022 Water changes are predicted to regulate physiological activities of bryophytes characterized by poikilohydric gametophytes. In montane forest ecosystems, nitrogen(N)–fixing bryophyte–cyanobacteria associations are main N resources.
Xiaoyang Fan, Guodi Yuan, Wenyao Liu
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A journey into the active center of nitrogenase [PDF]
JBIC Journal of Biological Inorganic Chemistry, 2014 Nitrogenase catalyzes the reduction of N2 to NH3, a key step in the global nitrogen cycle. This article describes our journey toward the definition of a complete molecular structure of the active site of nitrogenase, with an emphasis on the discovery of the interstitial carbide and the radical SAM-dependent insertion of this atom into the active FeMo ...
Hu, Yilin, Ribbe, Markus W
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Food and Energy Security, 2023 Soybean is a rich source of protein and oil for humans. It forms a symbiotic association with rhizobia to fix atmospheric nitrogen for its growth and development. Rhizobial type‐III effectors act as important signaling molecules in symbiosis.
Chao Ma +9 more
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