Results 31 to 40 of about 4,819 (173)

Minimal ATP‐Independent N2‐Reducing Systems Defined by L‐Cluster‐Bound Nitrogenase Assembly Platforms

open access: yesAngewandte Chemie, Volume 138, Issue 24, 8 June 2026.
Association of the L‐cluster with the nitrogenase assembly proteins NifEN (NifENL) or NifB (NifBL) intrinsically endows these proteins with N2‐reducing activity, enabling in vitro N2‐reduction by NifENL and NifBL when supplied with chemical reductants or photoexcited quantum dots while supporting in vivo N2‐fixation in NifENL‐ and NifENL‐expressing ...
Robert Quechol   +4 more
wiley   +2 more sources

Plasmid Transformation of Azotobacter vinelandii OP [PDF]

open access: yesMicrobiology, 1987
Azotobacter vinelandii OP which had been naturally induced to competence by growth in iron- and molybdenum-limited medium was transformed with the broad-host-range cloning vector pKT210. However, the transformation frequency at nearly saturating levels of DNA was 1000-fold lower for pKT210 than for a single chromosomal DNA marker (nif+).
J L, Doran   +4 more
openaire   +2 more sources

THE OXALACETATE DECARBOXYLASE OF AZOTOBACTER VINELANDII

open access: yesJournal 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

Phosphate-limited culture of Azotobacter vinelandii [PDF]

open access: yesJournal of Bacteriology, 1979
Batch cultures of Azotobacter vinelandii grown in phosphate-deficient media were compared with control cultures grown in phosphate-sufficient media. Phosphate limitation was assessed by total cell yield and by growth kinetics. Although cell protein, nucleic acids, and early growth rate were unaffected by phosphate deficiency, cell wall structure ...
J C, Tsai, S L, Aladegbami, G R, Vela
openaire   +2 more sources

Inoculantes microbianos incorporados al cultivo de Ipomoea batatas L. en el Valle del Sinú

open access: yesRevista Colombiana de Biotecnología, 2020
La batata (Ipomoea batatas L.) se cultiva en todo el mundo como fuente de carbohidratos, y su producción comercial requiere un alto aporte de fertilizantes químicos, lo cual eleva los costos de producción. Los inoculantes microbianos, se emplean como una
Diana Beatriz Sánchez López   +4 more
doaj   +1 more source

Molecular Mechanisms of Pseudomonas-Assisted Plant Nitrogen Uptake: Opportunities for Modern Agriculture

open access: yesMolecular Plant-Microbe Interactions, 2023
Pseudomonas spp. make up 1.6% of the bacteria in the soil and are found throughout the world. More than 140 species of this genus have been identified, some beneficial to the plant.
Stefan Sanow   +7 more
doaj   +1 more source

The role of alginate in Azotobacter vinelandii aggregation in submerged culture Papel del alginato en la agregación de Azotobacter vinelandii en cultivo sumergido

open access: yesRevista Colombiana de Biotecnología, 2008
The culture of strain LA21, a non-mucoid strain of Azotobacter vinelandii derivative of ATCC 9046, revealed that alginate is not necessary for aggregate formation.
Peña Carlos   +2 more
doaj   +2 more sources

Identification of Regulatory Genes and Metabolic Processes Important for Alginate Biosynthesis in Azotobacter vinelandii by Screening of a Transposon Insertion Mutant Library

open access: yesFrontiers in Bioengineering and Biotechnology, 2020
Azotobacter vinelandii produces the biopolymer alginate, which has a wide range of industrial and pharmaceutical applications. A random transposon insertion mutant library was constructed from A.
Mali Mærk   +7 more
doaj   +1 more source

Gene dosage analysis in Azotobacter vinelandii. [PDF]

open access: yesGenetics, 1992
Abstract For more than a decade, Azotobacter vinelandii has been considered a polyploid bacterium on the basis of physical studies of chromosome size and DNA content per cell. However, as described in the present work, many genetic operations can be performed in A. vinelandii without the constraints expected in a polyploid bacterium: (i)
Maldonado, Rafael   +3 more
openaire   +3 more sources

A Plasmonic Biohybrid With an Intracellular Biogenic S‐Scheme Nano‐Heterojunction Toward Wide‐Spectrum Solar‐To‐Chemical Conversion Beyond Nature

open access: yesAggregate, Volume 7, Issue 8, August 2026.
Bioinorganic hybrids show promise for solar‐to‐chemical conversion, yet are limited by poor light absorption and charge separation. A plasmonic biohybrid (CuS/CdS@yeast), featuring an intracellular S‐scheme heterojunction to achieve efficient electron‐hole separation, is fabricated via in‐situ mineralization for wide‐spectrum solar‐to‐chemical ...
Heng Yu   +9 more
wiley   +1 more source

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