Results 21 to 30 of about 15,225 (252)

Optımızatıon of Condıtıons for the Productıon of Indole Acetıc Acıd by Azotobacter spp.

UMYU Journal of Microbiology Research, 2023
Azotobacter spp. are known for their ability to fix nitrogen into the soil non-symbiotically. Their activities can be enhanced through the provision of optimum cultural conditions. Hence, this study aimed to isolate Azotobacter spp.
Sule, I. O., Agbabiaka, T. O., Saliu, B. K., Ajijolakewu, K. A., Zakariyah, R. F.   +4 more
doaj   +1 more source

Systematyka i Analizy Genomiczne Bakterii z Rodzaju Azotobacter

Postępy Mikrobiologii, 2021
Bakterie z rodzaju Azotobacter są przedmiotem wielu badań prowadzonych zarówno w Polsce jak i za granicą. Zainteresowanie tą grupą bakterii w dużej mierze związane jest z ich właściwościami, które mogą być wykorzystywane w rolnictwie.
Kozieł Monika, Gałązka Anna
doaj   +1 more source

Plasmids of Azotobacter vinelandii [PDF]

Journal of Bacteriology, 1988
Four laboratory strains and two isolates of Azotobacter vinelandii were found to contain plasmids. Twenty-five laboratory strains which could fix nitrogen did not have free, covalently closed circular plasmid DNA. The plasmids varied in size from 9 to 52 megadaltons, and each strain yielded only one plasmid. No discernible differences in ability to fix
Maia, Mauricio, Sanchez, Juan M., Vela, G. Roland   +2 more
openaire   +2 more sources

Phospholipids of Azotobacter vinelandii [PDF]

Journal of Bacteriology, 1969
Analyses of resting cells of Azotobacter vinelandii revealed that numerous phospholipids were present that did not concentrate in the membranous R 3 fraction which carried out electron transport function.
P, Jurtshuk, B A, Schlech
openaire   +2 more sources

Diauxic growth in Azotobacter vinelandii [PDF]

Journal of Bacteriology, 1985
Azotobacter vinelandii exhibited diauxie when grown in a medium containing both acetate and glucose as carbon sources. Acetate was used as the primary carbon source during the acetate-glucose diauxie. Uptake of acetate was constitutively expressed during both diauxic phases of growth. Induction of the glucose uptake system was inhibited in the presence
S E, George, C J, Costenbader, T, Melton
openaire   +2 more sources

Ultrastructure of Azotobacter vinelandii [PDF]

Journal of Bacteriology, 1970
Vegetative cells and cysts of Azotobacter vinelandii 12837 were prepared for electron microscopy by several methods assumed to preserve structural details destroyed by techniques previously reported in the literature.
Vela, G. Roland, Cagle, Gerald D., Holmgren, P. R.   +2 more
openaire   +2 more sources

Multiple chromosomes of Azotobacter vinelandii [PDF]

Journal of Bacteriology, 1989
The number of copies of the genes leuB, nifH, nifD, and nifK per cell of Azotobacter vinelandii has been determined to be about 80. A beta-lactamase gene was integrated into the A. vinelandii chromosome by single-point crossover. Subsequently, we have been able to detect nearly 80 copies of this beta-lactamase gene per cell of A.
P, Nagpal, S, Jafri, M A, Reddy, H K, Das   +3 more
openaire   +2 more sources

Respiration in Azotobacter vinelandii and its relationship with the synthesis of biopolymers

Electronic Journal of Biotechnology, 2020
Azotobacter vinelandii is a gram-negative soil bacterium that produces two biopolymers of biotechnological interest, alginate and poly(3-hydroxybutyrate), and it has been widely studied because of its capability to fix nitrogen even in the presence of ...
Tania Castillo, Andrés García, Claudio Padilla-Córdova, Alvaro Díaz-Barrera, Carlos Peña   +4 more
doaj   +1 more source

Increases in alginate production and transcription levels of alginate lyase (alyA1) by control of the oxygen transfer rate in Azotobacter vinelandii cultures under diazotrophic conditions

Electronic Journal of Biotechnology, 2021
Background: Alginates are polysaccharides used in a wide range of industrial applications, with their functional properties depending on their molecular weight. In this study, alginate production and the expression of genes involved in polymerization and
Belén Ponce, Viviana Urtuvia, Nataly Maturana, Carlos Peña, Alvaro Díaz-Barrera   +4 more
doaj   +1 more source

Bacterial nitrate assimilation: gene distribution and regulation [PDF]

, 2011
In the context of the global nitrogen cycle, the importance of inorganic nitrate for the nutrition and growth of marine and freshwater autotrophic phytoplankton has long been recognized.
Andrew J. Gates, Assumpção, Caballero, Cabello, Chai, Chen, Conrado Moreno-Vivián, David J. Richardson, Flores, Forchhammer, Forchhammer, Gates, Gutierrez, Ishida, Kayumov, Koropatkin, Leigh, Li, Lin, Lledó, Llácer, M. Dolores Roldán, Moreno-Vivián, Nakano, Ogawa, Ohashi, Pawlowski, Paz-Yepes, Pino, Puerta-Fernández, Ramos, Richardson, Sanders, Shao, Shu, Shu, Stuart J. Ferguson, Swanson, Szeto, Toukdarian, Víctor M. Luque-Almagro, Weiss, Weiss, Wray, Wu   +44 more
core   +1 more source