Results 11 to 20 of about 15,225 (252)

Enhanced Urea Production in the Diazotroph Azotobacter vinelandii as a Means of Stable Nitrogen Biofertiliser Production [PDF]

Microbial Biotechnology
Diazotrophic microbes capture atmospheric nitrogen and convert it into ammonia using the enzyme nitrogenase in a process that provides much of the fixed nitrogen that is required to sustain life in the biosphere.
Brett M. Barney, Benjamin R. Dietz
doaj   +3 more sources

Comparison of poly-3-hydroxybutyrate (P3HB) synthesis by Bacillus cereus and Azotobacter vinelandii OP: effect of agitation on the accumulation and physicochemical properties of the biopolymer [PDF]

Bioresources and Bioprocessing
Poly-3-hydroxybutyrate (P3HB) is a biodegradable thermoplastic polyester with mechanical and thermal properties comparable to those of petrochemical-based plastics.
Isabo Morales-Núñez, Marcela Cancino, Eric Pérez, Ricardo I. Castro, Maribel Mamani, Howard Ramírez-Malule, Álvaro Díaz-Barrera, Rodrigo Andler   +7 more
doaj   +2 more sources

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, Yuki Tatemichi, Wataru Aoki, Yuishin Kosaka, Hiroyoshi Minakuchi, Mitsuyoshi Ueda, Kouichi Kuroda   +6 more
doaj   +2 more sources

Modeling of nitrogen fixation and polymer production in the heterotrophic diazotroph Azotobacter vinelandii DJ [PDF]

Metabolic Engineering Communications, 2020
Nitrogen fixation is an important metabolic process carried out by microorganisms, which converts molecular nitrogen into inorganic nitrogenous compounds such as ammonia (NH3). These nitrogenous compounds are crucial for biogeochemical cycles and for the
Diego Tec Campos, Cristal Zuñiga, Anurag Passi, John Del Toro, Juan D. Tibocha-Bonilla, Alejandro Zepeda, Michael J. Betenbaugh, Karsten Zengler   +7 more
doaj   +2 more sources

Phasins PhbP2 and PhbP3 Are Involved in the Depolymerization of Polyhydroxybutyrate in Azotobacter vinelandii. [PDF]

J Basic Microbiol
ABSTRACT Polyhydroxybutyrate (PHB) is a natural polyester synthesized and stored intracellularly as cytoplasmic granules, serving as a carbon and energy reserve in certain bacteria. These granules are surrounded by a variety of proteins, including those directly involved in PHB metabolism—both in its synthesis and degradation—as well as a group of non ...
Ruiz-Escobedo J, Guzmán J, Espín G, Barrientos-Millán T, Moyao-Mejía A, Peña C, Moreno S, Meneses-Romero EP, Segura D.   +8 more
europepmc   +2 more sources

Quantification of ploidy in proteobacteria revealed the existence of monoploid, (mero-)oligoploid and polyploid species [PDF]

, 2011
Bacteria are generally assumed to be monoploid (haploid). This assumption is mainly based on generalization of the results obtained with the most intensely studied model bacterium, Escherichia coli (a gamma-proteobacterium), which is monoploid during ...
Lange, Christian, Pecoraro, Vito, Soppa, Jörg (Prof. Dr.), Zerulla, Karolin   +3 more
core   +17 more sources

<i>Azotobacter vinelandii</i> N₂ fixation increases in co-culture with the PGPR <i>Bacillus subtilis</i> in a nitrogen concentration-dependent manner. [PDF]

Appl Environ Microbiol
Leroux J, Beauregard PB, Bellenger J-P.
europepmc   +3 more sources

Synthesis, Structure, and Properties of Polyhydroxybutyrate Derived from Azotobacter Vinelandii N-15. [PDF]

ChemistryOpen
The bacterium Azotobacter vinelandii N15 synthesizes polyhydroxybutyrate (PHB) from sugar production waste. The study reveals the molecular composition, crystallinity, and thermal behavior of the synthesized biopolymer. Mechanical tests demonstrated high tensile strength and relatively low elongation at break. These properties highlight PHB's potential
Liu Y, Li D, Ran X, Nie W, Semeniuk I, Koretska N, Koretska N.   +6 more
europepmc   +2 more sources

Azotobacter vinelandii as a Nitrogen-Negative Chassis for Bio-Oil and Bio-Wax Production of Heterologous and Native Lipids. [PDF]

Microbiologyopen
Strains of the nitrogen‐fixing microbe Azotobacter vinelandii were restructured to remove competing metabolites, resulting in the hyper accumulation of the native lipid alkylresorcinol, visible as large inclusions within the cell. ABSTRACT The biosynthetic production of energy‐dense petrochemical substitutes is an important goal to address ...
Barney BM, Camur BB, Stolp LJ, Mancipe NC, Dietz BR.   +4 more
europepmc   +2 more sources

A Homolog of the Histidine Kinase RetS Controls the Synthesis of Alginates, PHB, Alkylresorcinols, and Motility in Azotobacter vinelandii. [PDF]

Curr Microbiol
Rosales-Cruz A, Reyes-Nicolau J, Minto-González E, Meneses-Carbajal A, Mondragón-Albarrán C, López-Pliego L, Castañeda M.   +6 more
europepmc   +3 more sources