Results 181 to 190 of about 18,267 (229)
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Pseudolysogeny of Azotobacter phages
Virology, 1980Abstract The establishment of a pseudolysogenic state accompanied by a phenotypic conversion in Azotobacter vinelandii strain O by phages A14, A21, A31, and A41 has been identified. Host cells can be recovered from the pseudolysogens by cultivation in phage-specific antiserum. Pseudolysogens continually give rise at a low rate to phage as a result of
B J, Thompson, E, Domingo, R C, Warner
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Capsule degradation in azotobacter
Life Sciences, 1974Abstract Enzymic degradation of Azotobacter capsular polysaccharide by the depolymerases from azotophage lysates of A . vinelandii , and from a strain of A . chroococcum was examined. The molecular size of the capsular polysaccharide was examined by molecular sieve chromatography both before and after exposure to the ...
L, Pike, R D, Humphrey, O, Wyss
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2019
Azotobacters have been used as biofertilizer since more than a century. Azotobacters fix nitrogen aerobically, elaborate plant hormones, solubilize phosphates and also suppress phytopathogens or reduce their deleterious effect. Application of wild type Azotobacters results in better yield of cereals like corn, wheat, oat, barley, rice, pearl millet and
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Azotobacters have been used as biofertilizer since more than a century. Azotobacters fix nitrogen aerobically, elaborate plant hormones, solubilize phosphates and also suppress phytopathogens or reduce their deleterious effect. Application of wild type Azotobacters results in better yield of cereals like corn, wheat, oat, barley, rice, pearl millet and
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Reduction of Nitrates by Azotobacter indicum and Azotobacter chroococcum Cultures
Applied Biochemistry and Microbiology, 2002The capacity for denitrification was studied in Azotobacter bacteria, which are free-living nitrogen-fixing obligatory aerobes. Data on nitrate reduction to nitrites and nitric oxide by A. indicum under anaerobic conditions were obtained for the first time for genus Azotobacter.
E. K. Furina +4 more
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Studies on Azotobacter. IV. Effect of Azotobacter Inoculation on Paddy
Madras Agricultural Journal, 1972Inoculation of crops with free living bacteria for increasing crop yields has been attempted by several investigators. Increased yields due to Azotobacter inoculation were obtained by Karunakar and Rajagopalan (1938) for sorghum, and Sundara Rao et al. (1963) for wheat.
NAIR K.S, RAMASWAMY P.P, RANI PERUMAL
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Symbiosis of Azotobacter with Insects
Nature, 1946IN 1912, I published (Ber. d. bot. Ges.) a preliminary note on the constant symbiosis of Aphides with Azotobacter. The entomologist, Prof. K. Aulc, of Brno, had previously (1910) found that the hitherto mysterious function of an organ in aphides and similar insects, called the pseudovitellus, was a seat of symbiotic organisms.
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Effect of Anionic Detergents on Azotobacter
Zentralblatt für Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene. Zweite Naturwissenschaftliche Abteilung: Allgemeine, Landwirtschaftliche und Technische Mikrobiologie, 1976Summary Tetrapropylene sodium alkyl benzene sulphonate (ABS) completely inhibited in vitro the growth of Azotobacter at a concentration of 100 ppm, but Det reduced growth only slightly. Azotobacter population was reduced only for three weeks with the addition of ABS or Det at a concentration of 100 ppm in soil.
N, Dhawan, M M, Mishra
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Formation of protoplasts in Azotobacter vinelandii
Archives of Microbiology, 1974Protoplasts of Azotobacter vinelandii were formed by incubating whole cells in lysozyme and EDTA in Tris-HCl buffer (0.05 M, pH 8.0) supplemented with sucrose (15% w/v). This appeared to be related to the special chelating ability of EDTA and Tris-HCl since substitution of the former by nitrilotriacetic acid or by trisodium citrate and the latter by ...
K Y, Cho, L, Pope, O, Wyss
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Electron transport in Azotobacter vinelandii
Biochimica et Biophysica Acta (BBA) - Enzymology and Biological Oxidation, 1966Summary 1. The nature and intracellular distribution of the respiratory enzyme system of Azotobacter vinelandii has been investigated. 2. Whole cells of this organism were found to contain high concentrations of ubiquinone (Q-8) but, in contrast to Azotobacter vinelandii strain O, no menaquinone (vitamin K2) was detected. 3.
C W, Jones, E R, Redfearn
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Azotobacter vinelandii Citrate Synthase
Biochemistry, 1995We have purified the citrate synthase from Azotobacter vinelandii and have determined that the size of the subunit is 48,000 Da and the structure of the holoenzyme is a hexamer. This contrasts with earlier estimates that indicate a 58,000 Da subunit and a tetrameric structure.
M, Rault-Leonardon +4 more
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