Antimicrobial Activities of Some Actinomycete Strains Isolated from the Sinai Egypt Soils | ||||
Egyptian Academic Journal of Biological Sciences, G. Microbiology | ||||
Article 3, Volume 9, Issue 3, December 2017, Page 21-31 PDF (334.22 K) | ||||
Document Type: Original Article | ||||
DOI: 10.21608/eajbsg.2017.16325 | ||||
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Authors | ||||
Abdel-Rahman A. G.1; B. M. Refaat2; M. Helal3; A. A. Kobisi4 | ||||
1Plant Protection Department, Desert Research Center, Mataria, Cairo, Egypt | ||||
2Botany and Microbiology Department, Faculty of Science (Boys), Al-Azhar University, Cairo, Egypt | ||||
3Botany and Microbiology Department, Faculty of Science (Boys), Al-Azhar University, Cairo, Egypt. | ||||
4Plant Protection Department, Desert Research Center, Mataria, Cairo, Egypt. | ||||
Abstract | ||||
Seventy three pure actinomycete colonies were isolated from 48 rhizospheric soil samples revealing different locations in Sinai. These isolates were tested for their antimicrobial activities against Bacillus subtilis and Staphylococcus aureus as gram-positive bacteria, Escherichia coli and Pseudomonas aeruginosa as gram-negative bacteria, Candida albicans as an unicellular fungi and Aspergillus niger, Aspergillus flavus, Rhizoctonia solani and Fusarium oxysporum as filamentous fungi. Isolates S6, S13 and S35 were the most effective against the tested bacteria and fungi. They had the lowest Minimum Inhibitory Concentration (MIC) values and showed the highest and widest spectrum of antibacterial and antifungal activities. Factors controlling actinomycetes active metabolite(s) productivity were studied. | ||||
Keywords | ||||
antimicrobial activities. Actinomycet. Sinai Egypt | ||||
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