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Journal of Biological Sciences
  Year: 2007 | Volume: 7 | Issue: 8 | Page No.: 1418-1423
DOI: 10.3923/jbs.2007.1418.1423
 
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Screening of Antagonistic Activity in Different Streptomyces Species Against Some Pathogenic Microorganisms

Mohamed Rizk, Tahany Abdel-Rahman and Hanaa Metwally

Abstract:
One hundred eighty eight Streptomyces species, isolated from Egyptian soils were screened for their antagonistic activity against nineteen fungal and bacterial species. Three red coloured isolates (No. 28, 152, 157) were the most active species, antagonizing all tested organisms, with variable sensitivity to Streptomyces antibiotics. Candida albicans was the most sensitive, inhibited by higher numbers of Streptomyces sp. Maximum degree of antagonistic activity was attained by five Streptomyces isolates against C. albicans. All isolates have been grouped according to the colour of aerial mycelium. Most of the antifungal isolates were found to be within the gray series, which were represented by 33 isolates out of 60 antifungal isolates.
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How to cite this article:

Mohamed Rizk, Tahany Abdel-Rahman and Hanaa Metwally, 2007. Screening of Antagonistic Activity in Different Streptomyces Species Against Some Pathogenic Microorganisms. Journal of Biological Sciences, 7: 1418-1423.

DOI: 10.3923/jbs.2007.1418.1423

URL: https://scialert.net/abstract/?doi=jbs.2007.1418.1423

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