Results 31 to 40 of about 14,969 (264)

Evaluating the growth performance of Two Azotobactor spp. In liquid glucose broth and tryptic peptone broth as inoculum for the production of bio-fertilizers

Tropical Agricultural Research, 2017
Biofertilizers with Azotobacter spp. releases available nitrogen to the plant rhizosphere. A media that yield a high viable inoculum cell count in a shorter incubation period is important for commercial production of biofertilizers.
A. D. Nagalla, D. V. Jayatilake, V. Herath, L. D. B. Suriyagoda   +3 more
doaj   +1 more source

Automatic Control for the Production of Alginate by Azotobacter Vinelandii

IEEE Access, 2019
Alginates are polymers used in the food and pharmaceutical industries as stabilizing, thickening, gel or film-forming agents. Food coatings formed from alginate have shown to have excellent properties such as flexibility and resistance to tearing.
Gonzalo Farias, Ernesto Fabregas, Alvaro Diaz-Barrera, Belen Ponce, Cristian Castro, Sebastian Dormido-Canto   +5 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]

, 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, Campbell, Demeler, Dixon, Hefti, Hill, Karimova, Key, Kurokawa, Little, Little, Little, Ma, Macheroux, Martinez-Argudo, Matthews, Miyatake, Money, Möglich, Möglich, Möglich, Nan, Perry, Qi, Reyes-Ramirez, Reyes-Ramirez, Slavny, Söderbäck, Taylor, Ukaegbu, Watts, Williamson, Zhou, Zoltowski, Zoltowski   +34 more
core   +1 more source

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

, 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, Danyal, Karamatullah, Dean, Dennis R., Duval, Simon, Hoffman, Brian M., Horitani, Masaki, Lukoyanov, Dmitriy, Marts, Amy R., Page, Taylor R., Raugei, Simone, Seefeldt, Lance C., Shaw, Sudipta   +11 more
core   +2 more sources

The Siderophore Metabolome of Azotobacter vinelandii [PDF]

Applied and Environmental Microbiology, 2016
ABSTRACT In this study, we performed a detailed characterization of the siderophore metabolome, or “chelome,” of the agriculturally important and widely studied model organism Azotobacter vinelandii . Using a new high-resolution liquid chromatography-mass spectrometry (LC-MS) approach, we found over 35 ...
Oliver Baars, François M. M. Morel, Mohammad R. Seyedsayamdost, Xinning Zhang   +3 more
openaire   +3 more sources

Metabolic potential of Azotobacter alginate producers and sustainable alternatives for alginate extraction [PDF]

Novel Research in Microbiology Journal
This research aimed to assess the metabolic activities of Azotobacter vinelandii DT1 strain by assaying its alginate synthesizing enzymes and modifying genes, synthesize alginate from the agricultural residues, and eradicate the pathogenicity and risk ...
Simiat O. Jimoh, Faizah R. Adebowale, Kifayat O. Asafa-Adedimeji, Ramat B. Badmos-Oladapo, Taiwo A. Sorunke   +4 more
doaj   +1 more source

Electron Transfer Precedes ATP Hydrolysis during Nitrogenase Catalysis [PDF]

, 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, Danyal, Karamatullah, Dean, Dennis R., Duval, Simon, Hoffman, Brian M., Lytle, Anna K., Seefeldt, Lance C., Shaw, Sudipta   +7 more
core   +2 more sources

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

Agronomía 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, Jazmín Vanessa Pérez Pazos   +1 more
doaj   +1 more source

Electrochemical and Structural Characterization of Azotobacter vinelandii Flavodoxin II [PDF]

, 2017
Azotobacter vinelandii flavodoxin II serves as a physiological reductant of nitrogenase, the enzyme system mediating biological nitrogen fixation. Wildtype A. vinelandii flavodoxin II was electrochemically and crystallographically characterized to better
Hill, Michael G., Rees, Douglas C., Segal, Helen M., Spatzal, Thomas, Udit, Andrew K.   +4 more
core   +2 more sources

Induction and ultrastructure for cysts of Azotobacter

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