Optimum Conditions for Glutaminase Production by Serratia marcescens N1
نویسندگان
چکیده
منابع مشابه
Culture conditions affect cytotoxin production by Serratia marcescens.
Cytotoxins have been implicated in the pathogenesis of bacterial infections. In this study, the influence of different culture conditions was evaluated on cytotoxin production of Serratia marcescens. Parameters such as culture media, incubation temperature, starting pH of culture medium, aeration, anaerobiosis, carbon sources, iron concentration in he culture media, and release of cell-bond tox...
متن کاملProduction of L-Asparaginase by Serratia marcescens SB08: Optimization by Response Surface Methodology
This paper describes optimization method that combines the Plackett-Burman design, a factorial design and the response surface method, which were used to optimize the medium for the production of L-asparaginase by Serratia marcescens SB08. Four medium factors, from out of 11 medium factors, were screened by Plackett-Burman design experiments and subsequent optimization process to find out the o...
متن کاملThreonine degradation by Serratia marcescens.
The wild strain of Serratia marcescens rapidly degraded threonine and formed aminoacetone in a medium containing glucose and urea. Extracts of this strain showed high threonine dehydrogenase and "biosynthetic" threonine deaminase activities, but no threonine aldolase activity. Threonine dehydrogenase-deficient strain Mu-910 was selected among mutants unable to grow on threonine as the carbon so...
متن کاملEndophthalmitis caused by Serratia marcescens.
BACKGROUND AND OBJECTIVE To describe the clinical features and treatment outcomes of 10 patients with culture-proven Serratia marcescens endophthalmitis. PATIENTS AND METHODS Records from the microbiology laboratory for the period from January 1980 through June 1993 were reviewed. Ten patients were identified who had positive anterior chamber or vitreous cultures and clinical signs of endopht...
متن کاملThreonine production by ethionine-resistant mutants of Serratia marcescens.
Ethionine reduced both the growth rate and the final growth level of Serratia marcescens Sr41. Growth inhibition was completely reversed by methionine. Strain D-315, defective in homoserine dehydrogenase I, was more sensitive to ethionine-mediated growth inhibition than was the wild-type strain. Ethionine-resistant mutants were isolated from cultures of strain D-316, which was derived from stra...
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 Al-Nahrain University Science
سال: 2017
ISSN: 1814-5922,2519-0881
DOI: 10.22401/jnus.17.2.19