Results 31 to 40 of about 12,693 (212)

Negative Cooperativity in the Nitrogenase Fe Protein Electron Delivery Cycle [PDF]

open access: yes, 2016
Nitrogenase catalyzes the ATP-dependent reduction of dinitrogen (N2) to two ammonia (NH3) molecules through the participation of its two protein components, the MoFe and Fe proteins.
Antony, Edwin   +11 more
core   +2 more sources

Caracterización y evaluación de PGPRs sobre el crecimiento de plántulas de Dioscorea rotundata in vitro

open access: yesAgronomía Costarricense, 2018
El objetivo de esta investigación fue aislar y caracterizar rizobacterias promotoras de crecimiento vegetal (PGPRs, por sus siglas en inglés) nativas de la rizosfera en cultivos de Dioscorea rotundata de zonas productoras representativas del Caribe ...
Diana Beatriz Sánchez López   +1 more
doaj   +1 more source

Substitutions in the redox-sensing PAS domain of the NifL regulatory protein define an inter-subunit pathway for redox signal transmission [PDF]

open access: yes, 2011
The Per-ARNT-Sim (PAS) domain is a conserved a/ß fold present within a plethora of signalling proteins from all kingdoms of life. PAS domains are often dimeric and act as versatile sensory and interaction modules to propagate environmental signals to ...
Ayers   +34 more
core   +1 more source

Induction and ultrastructure for cysts of Azotobacter

open access: yes浙江大学学报. 农业与生命科学版, 2001
Within 5 days of induction with n-butanol medium, 98%vegetative cells of Azotobacter vinelandii gave rise to cysts. 91% vegetative cells of Azotobacter chroococcus were converted to cysts. The cysts were spheroids or elliptical whose axe is 1.2 pm to 1.5
JIA Xiao-ming, HONG Jian
doaj   +1 more source

Electron Transfer Precedes ATP Hydrolysis during Nitrogenase Catalysis [PDF]

open access: yes, 2013
The biological reduction of N2 to NH3 catalyzed by Mo-dependent nitrogenase requires at least eight rounds of a complex cycle of events associated with ATP-driven electron transfer (ET) from the Fe protein to the catalytic MoFe protein, with each ET ...
Antony, Edwin   +7 more
core   +2 more sources

Genetic diversity of Azotobacter strains isolated from soils by amplified ribosomal DNA restriction analysis [PDF]

open access: yes, 2014
Strains of Azotobacter mediate in the nitrogen fixation process by reducing of N2 to ammonia. In this study, 50 strains were isolated from different rhizospheric soil in central Iran, by using soil paste-plate method.
Asgharzadeh, A., Mazinani, Z.
core   +1 more source

Phosphate-limited culture of Azotobacter vinelandii [PDF]

open access: yesJournal of Bacteriology, 1979
Batch cultures of Azotobacter vinelandii grown in phosphate-deficient media were compared with control cultures grown in phosphate-sufficient media. Phosphate limitation was assessed by total cell yield and by growth kinetics. Although cell protein, nucleic acids, and early growth rate were unaffected by phosphate deficiency, cell wall structure ...
J C, Tsai, S L, Aladegbami, G R, Vela
openaire   +2 more sources

Nitrogen Fixation Mutants of the Actinobacterium Frankia Casuarinae CcI3 [PDF]

open access: yes, 2017
Frankia is a representative genus of nitrogen-fixing (N2-fixing) actinobacteria; however, the molecular mechanisms underlying various phenomena such as the differentiation of a N2 fixation-specific structure (vesicle) and the regulation of N2 fixation ...
Kucho, Ken-ichi   +4 more
core   +2 more sources

EXTRACELLULAR POLYSACCHARIDES OF AZOTOBACTER VINELANDII [PDF]

open access: yesJournal of Bacteriology, 1964
Cohen, Gary H. (University of Vermont, Burlington), and Donald B. Johnstone . Extracellular polysaccharides of Azotobacter vinelandii . J. Bacteriol. 88: 329–338. 1964.—Extracellular polysaccharides synthetized by Azotobacter vinelandii
G H, COHEN, D B, JOHNSTONE
openaire   +2 more sources

Inoculantes microbianos incorporados al cultivo de Ipomoea batatas L. en el Valle del Sinú

open access: yesRevista Colombiana de Biotecnología, 2020
La batata (Ipomoea batatas L.) se cultiva en todo el mundo como fuente de carbohidratos, y su producción comercial requiere un alto aporte de fertilizantes químicos, lo cual eleva los costos de producción. Los inoculantes microbianos, se emplean como una
Diana Beatriz Sánchez López   +4 more
doaj   +1 more source

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