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Nitrogen fixation by immobilized Azotobacter chroococcum
Enzyme and Microbial Technology, 1981Abstract A nitrogen-fixing bacterium, Azotobacter chroococcum, was immobilized in 2% agar gel. The optimum partial oxygen pressure, pO2, of immobilized cells was 0.2 atm, wherea s that of native cells was 0.05 atm. When continual nitrogen fixation was performed under aerobic conditions, the nitrogenase activity of immobilized cells increased with ...
Isao Karube +3 more
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Acetylenreduktion durch Azotobacter chroococcum in Bodenproben
Zentralblatt für Mikrobiologie, 1987Summary A description is given of the nitrogen fixation in samples of soil using the acetylene-reduction method. Fertilizing the soil by means of mannitol brings about an enrichment of the soil with nitrogen fixing bacteria ( Azotobacter ), even a low numbers of bacterias in the beginning so that a sufficiently high ethylene production may be ...
Ingeborg Schwebke, Helga Schröder
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Occurrence of Multiple Antibiotic Resistance in Azotobacter chroococcum
Zentralblatt für Mikrobiologie, 1989Of 117 strains of Azotobacter chroococcum, isolated from local soils the antibiotic resistance pattern to ten widely used antibiotics was determined by antibiotic disk and agar plate dilution method. Over 95% of the strains were resistant to 10 micrograms ml-1 concentration of ampicillin, chloramphenicol, erythromycin and tetracycline and 70% or more ...
S S, Sindhu +3 more
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On Carbohydrate Consumption by Azotobacter chroococcum
Annals of the Missouri Botanical Garden, 1920In a previous paper (Allen, '19) devoted mainly to the study of the cause of beneficial action resulting from mechanical agitation of Azotobacter solution cultures, the defects of existing experimental methods for the study of the physiology of this organism were pointed out.
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Some properties of purified nitrogenase of Azotobacter chroococcum
Biochimica et Biophysica Acta (BBA) - Enzymology, 1969Abstract The nitrogenase of Azotobacter chroococcum was fractionated into two essential components by anaerobic chromatography and elution with MgCl2. Fraction 1, which contained iron and molybdenum, was not damaged by exposure to air for 30 min at 20° but Fraciton 2, which also contained iron but only traces of molybdenum, was completed inactivated ...
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AZOTOBACTER CHROOCOCCUM BAKTERIYASINING BIOLOGIK XUSUSIYATLARI
Аннотация Azotobacter chroococcum qishloq xo'jaligida judayam katta ahamiyatga ega ya'ni ushbu bakteriya orqali xar taraflama foydali bioog'it olish mumkin. Bioo'g'itlar kimyoviy o'g'itlarga nisbatan o'simliklarga yaxshi foyda keltiradi. A.chroococcum atmosferadagi erkin azotni o'zlashtirib o'simliklarni o'sish gormonlarini ishlab chiqib õsishini ...openaire +1 more source
Radiation Studies on Azotobacter chroococcum
Zentralblatt für Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene. Zweite Naturwissenschaftliche Abteilung: Allgemeine, Landwirtschaftliche und Technische Mikrobiologie, 1974M.H. Ahmed, G.S. Venkataraman
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2019
Recombinant plasmid of RP4:: Mu cts62 is constructed. The plasmid is transferred by conjugation with the 10?????-10?????? frequency from E. coli to taxonomically nonrelated bacterium of Azotobacter chroococcum. Azotobacter strains are revealed where Mu cts62 phage DNA was replicated and about 10??? plaque-forming units per ml????? was produced.
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Recombinant plasmid of RP4:: Mu cts62 is constructed. The plasmid is transferred by conjugation with the 10?????-10?????? frequency from E. coli to taxonomically nonrelated bacterium of Azotobacter chroococcum. Azotobacter strains are revealed where Mu cts62 phage DNA was replicated and about 10??? plaque-forming units per ml????? was produced.
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DISSOCIATION IN AZOTOBACTER CHROOCOCCUM (BEIJERINCK)
Soil Science, 1940C. B. LIPMAN, E. McLEES
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