Results 41 to 50 of about 4,819 (173)

Nitrogenaseless Mutants of Azotobacter vinelandii [PDF]

Proceedings of the National Academy of Sciences, 1970
Mutants of Azotobacter which grow normally on excess ammonia under a variety of conditions and which grow slowly or not at all on atmospheric nitrogen have been isolated. Extracts of these strains have low or no detectable nitrogenase activity. There are three classes of mutants. Cell-free preparations of members of the first class
G J, Sorger, D, Trofimenkoff
openaire   +2 more sources

A Proposed Complete‐Cycle Mechanism for Conversion of N2 to NH3 by Mo‐Nitrogenase

ChemBioChem, Volume 27, Issue 14, 29 July 2026.
How does the enzyme nitrogenase convert N2 to NH3 under ambient conditions? Here I describe a proposed complete cycle of the chemical mechanism, with computed energy profiles and kinetic barriers for a sequence of 31 reaction steps, encompassing 40 intermediates. How does the enzyme nitrogenase convert N2 to NH3 under ambient conditions?
Ian Dance
wiley   +1 more source

Functional Nitrogenase Cofactor Maturase NifB in Mitochondria and Chloroplasts of Nicotiana benthamiana

mBio, 2022
Engineering plants to synthesize nitrogenase and assimilate atmospheric N2 will reduce crop dependency on industrial N fertilizers. This technology can be achieved by expressing prokaryotic nitrogen fixation gene products for the assembly of a functional
Xi Jiang, Diana Coroian, Emma Barahona, Carlos Echavarri-Erasun, Rocío Castellanos-Rueda, Álvaro Eseverri, Jose A. Aznar-Moreno, Stefan Burén, Luis M. Rubio   +8 more
doaj   +1 more source

Influence of Nanomaterials and Nanocomposites on the Nutrient Composition

Food Safety and Health, Volume 4, Issue 3, Page 600-620, July 2026.
Nanomaterials and nanocomposites enhance crop nutrition and food quality by improving nutrient availability, plant uptake, and bioavailability through controlled delivery and nano‐encapsulation. Their applications in agriculture and food systems enable sustainable biofortification, improved preservation, and functional foods, while emphasizing safety ...
Akanksha Dwivedi, Roohi Yusufi, G. N. Darwhekar, Kuldeep Vinchurkar, Vijay R. Chidrawar   +4 more
wiley   +1 more source

Comparison of five bacterial strains producing siderophores with ability to chelate iron under alkaline conditions

AMB Express, 2019
Iron deficiency is one of the main causes of chlorosis in plants, which leads to losses in field crops quality and yield. The use of synthetic chelates to prevent or correct iron-deficiency is not satisfactory mainly due to their poor biodegradability ...
Carlos M. H. Ferreira, Ângela Vilas-Boas, Cátia A. Sousa, Helena M. V. M. Soares, Eduardo V. Soares   +4 more
doaj   +1 more source

Formulation of Bacillus and Azotobacter Consortia in Liquid Cultures: Preliminary Research on Microbes-Coated Urea

International Journal of Agriculture System, 2020
The spore-forming Bacillus and cysts forming Azotobacter are Plant Growth Promoting Rhizobacteria which has been used as biofertilizer in sustainable agriculture since they tolerant to dried soil. Drought resistant microbes will be useful to coat urea in
Reginawanti Hindersah, Mieke Rochimi Setiawati, Priyanka Asmiran, Betty Natalie Fitriatin   +3 more
doaj   +1 more source

RESPONSE OF CUCUMBER AND OKRA TO COMBINED APPLICATION OF AZOTOBACTER TRANSFORMANTS AND CHEMICAL NITROGEN FERTILIZER [PDF]

Journal of Plant Production, 2008
The present investigation was carried out (Lab. study) in microbial genetics lab., Genetic Dept., Minia University and a field study was carried out at Sakha agriculture research station farm during the two successive summer season of 2004 and 2005.     
O. Dakhly, K. Abd Elaziz, Manal Abd Allah, E. Hassan   +3 more
doaj   +1 more source

Structure‐informed engineering of plant–microbe interactions

The Plant Journal, Volume 127, Issue 1, July 2026.
SUMMARY This review critically evaluates how structural biology has enabled interface‐informed engineering of plant–microbe interactions, with a clear emphasis on the relative maturity of plant–pathogen research compared with symbiosis engineering. In plant immunity, atomic resolution structures of apoplastic receptors, host targets, and intracellular ...
Gloria Meng‐Hsuan Lin, Tim Lange, Alexander Förderer   +2 more
wiley   +1 more source

Alginato bacteriano: aspectos tecnológicos, características e produção Bacterial alginate: technological aspects, characteristics and production

Química Nova, 2008
Alginate is a biopolymer used for a variety of industrial applications, for example, in the textiles, cosmetics, foods, agricultural and biotechnological industries.
Crispin Humberto Garcia-Cruz, Ulisses Foggetti, Adriana Navarro da Silva   +2 more
doaj   +1 more source

Mutagenic Survey of Key Residues of NifB Involved in Radical SAM‐Dependent Nitrogenase Cofactor Assembly

ChemBioChem, Volume 27, Issue 11, 15 June 2026.
NifB uses an RS–K1–K2 triad to assemble the L‐cluster, a [Fe8S9C] precursor of the nitrogenase cofactor. The RS module cleaves SAM to form the 5′‐dA radical, K1 serves structural/SAM‐sensing roles, and K2 drives radical‐dependent fusion with K1. SAM‐anchoring residues link SAM binding to cluster fusion, while termini and surface residues regulate ...
Calder Duffin, Robert Quechol, Yimo Yang, Chi Chung Lee, Yilin Hu, Markus W. Ribbe   +5 more
wiley   +1 more source