Results 71 to 80 of about 4,818 (173)

Regular surface layer of Azotobacter vinelandii [PDF]

Journal of Bacteriology, 1984
Washing Azotobacter vinelandii UW1 with Burk buffer or heating cells at 42 degrees C exposed a regular surface layer which was effectively visualized by freeze-etch electron microscopy. This layer was composed of tetragonally arranged subunits separated by a center-to-center spacing of approximately 10 nm. Cells washed with distilled water to remove an
W H, Bingle, J L, Doran, W J, Page
openaire   +2 more sources

Effect of native strains of plant growth promoting rhizobacteria on growth and yield of Isabgol (Plantago ovata)

The Indian Journal of Agricultural Sciences, 2016
An experiment was conducted to evaluate the growth promotion in isabgol (Plantago ovata Forsk.) with native rhizobacteria strains (ISB-2, ISB-5, ISB-8, ISB-9, ISB-10, ISB-125, ISB-15 and ISB-28) isolated from the rhizospheric soils collected from ...
BRIJESH K MISHRA, BALRAJ SINGH, J K RANJAN, P N DUBEY, K KANT, ARUNABH JOSHI   +5 more
doaj   +1 more source

The unphosphorylated EIIA(Ntr) protein represses the synthesis of alkylresorcinols in Azotobacter vinelandii. [PDF]

PLoS ONE, 2015
Upon encystment induction, Azotobacter vinelandii produces the phenolic lipids alkylresorcinols (ARs) that are structural components of the cysts. The enzymes responsible for the ARs synthesis are encoded in the arsABCD operon, whose expression is ...
Luis Felipe Muriel-Millán, Soledad Moreno, Yanet Romero, Leidy Patricia Bedoya-Pérez, Miguel Castañeda, Daniel Segura, Guadalupe Espín   +6 more
doaj   +1 more source

Predicting compatibility between ferredoxins and the Fe protein of nitrogenase using in silico protein modeling

Protein Science, Volume 35, Issue 3, March 2026.
Abstract Biological nitrogen fixation is the process by which certain bacteria and archaea use the enzyme nitrogenase to reduce atmospheric nitrogen into bioavailable ammonium. Engineering non‐nitrogen‐fixing organisms, like plants, to use nitrogenase could reduce dependency on synthetic fertilizer and mitigate the environmental impacts of industrial ...
Adity Biswas, Katerina Trachtova, Kathryn R. Fixen   +2 more
wiley   +1 more source

The Prebiotic and Techno‐Functional Potential of Microbial Exopolysaccharides for Human Health and Food Systems

Comprehensive Reviews in Food Science and Food Safety, Volume 25, Issue 2, March 2026.
ABSTRACT Microbial exopolysaccharides (EPS) represent a diverse class of biopolymers holding considerable promise as functional food ingredients. This review analyzes the dual function of microbial EPS as a candidate for prebiotic agents and techno‐functional additives.
Md. Abdur Razzak, Hye Kim, Md. Ariful Haque, Min Ji Jang, Sehyeon Song, Anishka Talari, Lakshmi Devi Chittepu, Seockmo Ku   +7 more
wiley   +1 more source

Phosphate solubilization characteristics of efficient nitrogen fixing soil Azotobacter strains

Iranian Journal of Microbiology, 2014
Background and Objectives: Azotobacter is a diazotroph bacterium reported to possess various plant growth-promoting characteristics.The aim of this study was to isolate Azotobacter strains capable of fixing nitrogen and effectively hydrolyzing both ...
Rahim Nosrati, Parviz Owlia, Horieh Saderi, Iraj Rasooli, Mohammad AliMalboobi   +4 more
doaj  

Evaluation of the Efficacy of Two New Biotechnological-Based Freeze-Dried Fertilizers for Sustainable Fe Deficiency Correction of Soybean Plants Grown in Calcareous Soils

Frontiers in Plant Science, 2019
Currently, fertilization with synthetic chelates is the most effective agricultural practice to prevent iron (Fe) deficiencies in crops, especially in calcareous soils. Because these compounds are not biodegradable, they are persistent in the environment,
Carlos M. H. Ferreira, Carlos M. H. Ferreira, Carlos M. H. Ferreira, Sandra López-Rayo, Juan J. Lucena, Eduardo V. Soares, Eduardo V. Soares, Helena M. V. M. Soares   +7 more
doaj   +1 more source

Unlocking nitrogen regulation: structural insights into the NifL‐NifA complex and prospects for engineered diazotrophs

The FEBS Journal, Volume 293, Issue 6, Page 1616-1620, March 2026.
The urgent need for sustainable agriculture places biological nitrogen fixation at the forefront of current biotechnological research. Plant growth‐promoting rhizobacteria play crucial roles in agriculture by enhancing nutrient absorption, regulating hormonal balance, and providing reduced nitrogen to plants. Among these, diazotrophic bacteria, such as
Edileusa Cristina Marques Gerhardt, Khaled A. Selim   +1 more
wiley   +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

Evaluation of Organic Substrates and Microorganisms as Bio-Fertilisation Tool in Container Crop Production

Agronomy, 2019
Microorganisms are only effective when adequate conditions for their survival and development are provided. Among the factors that influence its effectiveness includes the type of soil or culture substrate, which works as an energy source reserve ...
Jose Luis Ruiz, Maria del Carmen Salas
doaj   +1 more source