Results 91 to 100 of about 12,693 (212)

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

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   +1 more source

Competitiveness and communication for effective inoculation byRhizobium, Bradyrhizobium and vesicular-arbuscular mycorrhiza fungi [PDF]

, 1994
After a short summary on the ecology and rhizosphere biology of symbiotic bacteria and vesicular-arbuscular (VA) mycorrhiza fungi and their application as microbial inocula, results on competitiveness and communication are summarized. Stress factors such
A. A. T. Vargas, A. B. Wolff, A. B. Wolff, A. D. Rovira, A. Hilali, A. J. Bjourson, A. Jacobi, A. M. Hirsch, A. Pühler, A. Savoure, C. Hubac, D. A. Kluepfel, D. A. Phillips, D. Morandi, D. Werner, D. Werner, D. Werner, E. Görge, E. Görge, E. L. Kannenberg, E. Martinez-Romero, F. D. Dakora, G. D. Bowen, H. P. Spaink, J. Denarié, J. Olivares, J. R. Rao, J. Thies, K. J. Miller, K. Kosch, K. Recourt, M. Göttfert, M. Parniske, M. Parniske, M. Parniske, N. K. Peters, P. E. Schmidt, P. E. Schmidt, P. M. Gresshoff, P. Müller, P. Schmidt, P. Somasegaran, P.J. Bottomley, R. Kape, R. Kape, R. Kape, R. Kape, S. Bernard, S. Schenk, S. U. Schenk, S. U. Schenk, W. Streit, W. Streit, W. Streit, X. Zhang, Y. M. Barnet   +55 more
core   +1 more source

Structure of the Azotobacter vinelandii surface layer [PDF]

Journal of Bacteriology, 1987
Electron microscopy of the Azotobacter vinelandii tetragonal surface array, negatively stained with ammonium molybdate in the presence of 1 mM calcium chloride, showed an apparent repeat frequency of 12 to 13 nm. Image processing showed dominant tetrad units alternating with low-contrast cruciform structures formed at the junction of slender linkers ...
W H, Bingle, P W, Whippey, J L, Doran, R G, Murray, W J, Page   +4 more
openaire   +2 more sources

Enhancement of Nitrogenase Activity in Recombinant Escherichia coli by Replacing Upstream Region of nif Operon from Paenibacillus Species

ChemBioChem, Volume 27, Issue 3, 12 February 2026.
Biological N2 fixation by nitrogenase offers a sustainable alternative to the Haber–Bosch process. Heterologous nitrogenase production in Escherichia coli is a promising strategy. We engineered E. coli with nitrogen fixation (nif) operons from diazotrophic Paenibacillus species.
Yuki Honda, Kotone Takeuchi, Sawako Hayakawa, Daisuke Koma, Hiroshi Fujii   +4 more
wiley   +1 more source

Structural Analysis of a Nitrogenase Iron Protein from Methanosarcina acetivorans: Implications for CO2 Capture by a Surface-Exposed [Fe4S4] Cluster. [PDF]

, 2019
Nitrogenase iron (Fe) proteins reduce CO2 to CO and/or hydrocarbons under ambient conditions. Here, we report a 2.4-Å crystal structure of the Fe protein from Methanosarcina acetivorans (MaNifH), which is generated in the presence of a reductant ...
Hiller, Caleb J, Hu, Yilin, Kang, Wonchull, Lee, Chi Chung, Liedtke, Jasper, Rettberg, Lee A, Ribbe, Markus W, Stiebritz, Martin T   +7 more
core   +2 more sources

Endogenous Encystment of Azotobacter vinelandii [PDF]

Journal of Bacteriology, 1969
When young cells of Azotobacter vinelandii are impinged on membrane filters, washed free of carbon substrate, and placed on a mineral salts basal medium, the culture will proceed to encyst although at a slower rate than if n -butanol were supplied as a substrate.
O, Wyss, D D, Smith, L M, Pope, K E, Olson   +3 more
openaire   +2 more sources

Advancements and Challenges in the Production of Biosurfactants: A Path Toward Sustainable Surfactant Alternatives

ChemBioEng Reviews, Volume 13, Issue 1, February 2026.
Microorganisms generate versatile biosurfactants with a wide range of uses. Although cost issues still exist, industrial interest is growing because to the advantages of sustainability, which are enhanced by genetic engineering; life cycle evaluation is crucial for scalable, environmentally responsible production.
Lavanya M., Rishabh Agarwala
wiley   +1 more source

The CBRB regulon: Promoter dissection reveals novel insights into the CbrAB expression network in Pseudomonas putida [PDF]

, 2018
CbrAB is a high ranked global regulatory system exclusive of the Pseudomonads that responds to carbon limiting conditions. It has become necessary to define the particular regulon of CbrB and discriminate it from the downstream cascades through other ...
Andújar, Eloísa, Barroso, Rocío, Canosa, I., García Mauriño, Sofía M., Pérez Alegre, Mónica, Santero Santurino, Eduardo, Tomás Gallardo, Laura   +6 more
core   +3 more sources

Functional Glass‐based Fertilizer Implementing Bacterial Nitrogen Fixation

Journal of the American Ceramic Society, Volume 109, Issue 2, February 2026.
ABSTRACT Fertilizers are indispensable in modern agriculture, with >200 Mt of nitrate and mineral fertilizers being consumed globally each year. Sustainable agricultural intensification requires nutrient‐efficient fertilization strategies that avoid environmental damage and preserve finite resources.
Franziska Scheffler, Benedikt Kühnel, Simon Redlich, Thomas Wichard, Lothar Wondraczek   +4 more
wiley   +1 more source

Correlation between nitrogen fixation rate and alginate productivity of an indigenous Azotobacter vinelandii from Iran

Iranian Journal of Microbiology, 2012
Background and Objectives: Azotobacter vinelandii, a gamma-proteobacterium, is an obligate aerobic free-living gramnegative soil bacterium capable of fixing nitrogen.
R Nosrati, P Owlia, H Saderi, M Olamaee, I Rasooli, Tehrani A Akhavian   +5 more
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