production of oxytetracycline by an isolated strain of streptomyces rimosus from iranian soil was investigated using a special fermentation medium. a comparative study was performed with standard strain ptcc 1144 using the following parameters optimum growth conditions with respect to time, ph, and different amounts of corn steep liquor. surprisingly, the production yield of the wild strain was...

background and objective: bhitarkanika is the mangrove ecosystem of orissa, india. it was not explored before for occur  rence and distribution of streptomyces . with the aim of isolation and characterization of special group of bacteria from this mangrove ecosystem, the present study has been made. materials and methods: isolates of streptomyces were obtained from plant, soil and water collect...

In an extensive numerical phenetic survey, a numberof blue, red and gray spored streptomycete strainswere grouped together as Streptomyces cyaneusspecies-group, a taxon which encompasses strainsknown to produce antitumor antibiotics, notably anthracyclines.In the present investigation these and relatedstreptomycetes were the subject of morphological and...

background and purpose: cutaneous infections arise from a homogeneous group of keratinophilic fungi, known as dermatophytes. since these pathogenic dermatophytes are eukaryotes in nature, use of chemical antifungal agents for treatment may affect the host tissue cells. in this study, we aimed to evaluate the antifungal activity of actinomyces species against trichophyton mentagrophytes (abbrevi...

Thirteen species of Streptomycetes, Arthrobacters and Mycobacterium were studied for the determination of a potential cholesterol oxidase producer. Only Streptomyces fradiae and Streptomyces rishiriences were found to be capable of producing this enzyme. Streptomyces fradiae was selected for the production of cholesterol oxidase and cultured in different media to find optimum media and con...