Results 21 to 30 of about 12,344 (212)

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

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

Tryptophan-Tryptophan energy migration as a tool to follow apoflavodoxin folding [PDF]

, 2008
Submolecular details of Azotobacter vinelandii apoflavodoxin (apoFD) (un)folding are revealed by time-resolved fluorescence anisotropy using wild-type protein and variants lacking one or two of apoFD's three tryptophans.
Mierlo, C.P.M., van, Westphal, Adrie H., van Amerongen, H., Visser, N.V., Amerongen, H., van, van Hoek, Arie, Hoek, A., van, Visser, Antonie J.W.G., van Amerongen, Herbert, van Hoek, A., Visser, Nina V., Westphal, A.H., van Mierlo, Carlo P.M., Visser, A.J.W.G., van Mierlo, C.P.M.   +14 more
core   +1 more source

Azotobacter vinelandii CA6 FeSI proteininin klonlanması, ifadesi ve karakterizasyonu [PDF]

, 2022
The [2Fe-2S] protein from Azotobacter vinelandii CA6, also known as Shethna protein I or FeSI protein, was cloned and overexpressed in E. coli and purified.
Kabasakal, Burak Veli
core   +1 more source

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

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

THE OXALACETATE DECARBOXYLASE OF AZOTOBACTER VINELANDII

Journal of Biological Chemistry, 1949
In 1941 Krampitz and Werkman (1) discovered an enzyme in Micro- coccus lysodeikticus which catalyzed the decarboxylation of oxalacetate. By means of an exchange reaction they were able to demonstrate the in- corporation of isotopic carbon dioxide into the p-carboxyl group of oxal- acetic acid in the presence of this enzyme (2). Similar results were ob-
G W E, PLAUT, H A, LARDY
openaire   +2 more sources

PHYTOCHEMICAL ANALYSIS AND MINERAL ELEMENTS COMPOSITION OF DATURA STRAMONIUM FOLLOWING BIOFERTILIZERS APPLICATION [PDF]

Assiut University Journal of Multidisciplinary Scientific Research, 2015
Azospirillum brasilense or/ and Azotobacter vinelandii are employed in agriculture as biofertilizers. The main target of the present study is to assess the effect of nitrogen fixing microorganisms to improve and boost medicinal plants therapeutic ...
doaj   +1 more source

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