IDENTIFICATION AND CHARACTERIZATION OF Azotobacter chroococcum ISOLATED FROM SOME EGYPTIAN SOILS
نویسندگان
چکیده
منابع مشابه
Production of Curdlan by some Bacteria Isolated from Egyptian Soils
Thirty two curdlan producing bacterial isolates were obtained from eight different Governorates in Arab Republic of Egypt. Four isolates namely K10, K17, K20 and K74 were selected as highly efficient of curdlan production. The effect of some nutritional and environmental factors on curdlan production by those selected isolates was investigated using shake flask as a batch culture. The optimum c...
متن کاملMolecular Identification and Characterization of Antimicrobial Active Actinomycetes Strains from Some Egyptian Soils
Over classification problem of genus Streptomyces led the scientists to carry out many attempts to eliminate such problems. The current study aims at the molecular identification of antimicrobial activity of Actinomycetes from Egyptian soil. Among the 75 Actinomycetes collected isolates, 35 isolates by morphological and physiological studies were belonging to genus Streptomyces which were 64.3%...
متن کاملCharacterization of an oxygen-stable nitrogenase complex isolated from Azotobacter chroococcum.
In crude cell-free extracts of Azotobacter chroococcum, nitrogenase was much less sensitive to irreversible inactivation by O2 than was the purified enzyme. When nitrogenase was partially purified by anaerobic discontinuous sucrose-density-gradient centrifugation, O2-tolerance was retained. This preparation was considerably enriched in four polypeptides, three of which were derived from the Mo-...
متن کاملsynthesis and characterization of some macrocyclic schiff bases
ماکروسیکلهای شیف باز از اهمیت زیادی در شیمی آلی و دارویی برخوردار می باشند. این ماکروسیکلها با دارابودن گروه های مناسب در مکانهای مناسب می توانند فلزاتی مثل مس، نیکل و ... را در حفره های خود به دام انداخته، کمپلکسهای پایدار تولید نمایند. در این پایان نامه ابتدا یک دی آلدئید آروماتیک از گلیسیرین تهیه می شود و در مرحله بعدی واکنش با دی آمینهای آروماتیک و یا آلیفاتیک در رقتهای بسیار زیاد منجر به ت...
15 صفحه اولNitrogenase in Azotobacter chroococcum and Klebsiella pneumoniae.
Blumberg, W. E. & Peisach, J. (1974) Arch. Biochem. Biophys. 162,502-512 Cammack, R. (1973) Biochem. Biophys. Res. Commun. 54,548-554 Cammack, R., Rao, K. K. & Hall, D. 0. (1971) Biochem. Biophys. Res. Commun. 44,s-14 Coffman, R. E. & Stavens, B. W. (1970) Biochem. Biophys. Res. Commun. 41,163-169 Fee, J. A. & Palmer, G. (1971) Biochim. Biophys. Actu 249,175-195 Genonde, Ic, Schlaak, M. E., Bri...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Agricultural Chemistry and Biotechnology
سال: 2010
ISSN: 2090-3707
DOI: 10.21608/jacb.2010.88790