Results 41 to 50 of about 14,969 (264)
Gene dosage analysis in Azotobacter vinelandii. [PDF]
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 Caro, Rafael Diego +3 more
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The rhodanese RhdA helps Azotobacter vinelandii in maintaining cellular redox balance [PDF]
The tandem domain rhodanese-homology protein RhdA of Azotobacter vinelandii shows an active-site loop structure that confers structural peculiarity in the environment of its catalytic cysteine residue.
Anderson A.J. +5 more
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EXTRACELLULAR POLYSACCHARIDES OF AZOTOBACTER VINELANDII [PDF]
Cohen, Gary H. (University of Vermont, Burlington), and Donald B. Johnstone . Extracellular polysaccharides of Azotobacter vinelandii . J. Bacteriol. 88: 329–338. 1964.—Extracellular polysaccharides synthetized by Azotobacter vinelandii
Donald B. Johnstone, Gary H. Cohen
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Morphogenesis of Cysts in Azotobacter vinelandii [PDF]
Cultures of Azotobacter vinelandii were induced to encystment with β-hydroxybutyrate. The morphological events in the transition from cell to cyst were observed by electron microscopy of thin sections. Upon induction of encystment, cells became rounded and nonmotile.
Victoria M. Hitchins, H. L. Sadoff
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Nitrogen Fixation Mutants of the Actinobacterium Frankia Casuarinae CcI3 [PDF]
Frankia is a representative genus of nitrogen-fixing (N2-fixing) actinobacteria; however, the molecular mechanisms underlying various phenomena such as the differentiation of a N2 fixation-specific structure (vesicle) and the regulation of N2 fixation ...
Kucho, Ken-ichi +4 more
core +2 more sources
Phosphate-limited culture of Azotobacter vinelandii [PDF]
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, G R Vela, S L Aladegbami
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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
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Inoculantes microbianos incorporados al cultivo de Ipomoea batatas L. en el Valle del Sinú
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
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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 OXALACETATE DECARBOXYLASE OF AZOTOBACTER VINELANDII
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, Henry A. Lardy
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