Document Details

Document Type : Article In Journal 
Document Title :
Studies on the Antimicrobial Activity of Streptomyces sp. Isolated from Jazan
دراسات على النشاط التضادي للاستربتوميسس المعزولة من جازان
 
Subject : Biology 
Document Language : English 
Abstract : Antimicrobial activity of Streptomyces sp. (J12) isolated from soil sample collected from Jazan was studied. The isolate was classified according to the color of its mature sporulated aerial mycelia. It showed antimicrobial activities on solid and liquid media against some Gram positive (Bacillus subtilis and Staphylococcus aureus), Gram negative bacteria (Escherichia coli and Salmonella typhi), as well as fungi (Fusarium oxysporum f. sp. melongenae, Rhizoctonia solani and Candida albicans). Results showed that oat meal, starch casein and Sabouraud media improved antibiotic biosynthesis more than yeast malt extract medium. Biosynthesis of antibiotics by the species under agitated culture conditions was decreased. The influence of different cultural conditions on antibiotic biosynthesis by Streptomyces J12 was studied. It showed that the highest antimicrob-ial activities were obtained after 6 days of growth at pH 7.2 and a medium composition of 10g/l starch as the sole carbon source, 2.5g/l of potassium nitrate as a nitrogen source and 0.3g/l casein. 
ISSN : 1012-1319 
Journal Name : Science Journal 
Volume : 19 
Issue Number : 1 
Publishing Year : 1428 AH
2007 AD 
Number Of Pages : 11 
Article Type : Article 
Added Date : Sunday, October 11, 2009 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
صالحة حسن مستور الزهرانيSalha H. M. Al-ZahraniResearcher  

Files

File NameTypeDescription
 22697.pdf pdf 

Back To Researches Page