Document Details

Document Type : Article In Journal 
Document Title :
Antagonistic Effect of Streptomyces Isolates on Growth of Plant Pathogenic Fungi Rhizoctona solani and Fusarium oxysporum f. sp. melongenae
التأثير التضادي لعزلات من الستربتوميسس على نمو الفطرين الممرضين للنبات - Rhizoctona solani and Fusarium oxysporum f. sp. melongenae
 
Subject : Microbiology  
Document Language : Arabic 
Abstract : This work was done to study the antagonistic activity of isolated Streptomyces from soil of south west of Saudi Arabia against two pathogenic fungi Rhizoctonia solani and Fusarium oxysporum f. sp. Melongenae the causal against some root diseases . The laboratory study was done by testing the antagonistic activity of the best two Streptomyces isolates, Streptomyces isolate 1 and Streptomyces isolate 28 for inhibition of the growth of two tested fungi to know the available uses in two Streptomyces isolates and the biological control (later). A study has been done by using a cell-culture filtrate for each Streptomyces isolate on the radial growth and dry weight of the two pathogenic fungi after their exposure to different concentrations of filtrate of Streptomyces isolates 1 and 28 media. The laboratory results proved that the high antagonistic effect of these two isolates on the inhibition growth of both fungi of R. solani and F. oxysporum f. sp. melongnae were 100% of 12.5% of Streptomyces 1 filtrate in solid media . Inhibition of 97% and 88% of the growth of the two fungi respectively were done in liquid media. Addition of 12.5% concentration of Streptmyces isolate 28 filtrate, the percent of inhibition of the two fungi were 97% and 100% respectively in solid media, and 83.2% and 80.2% in liquid media. 
ISSN : 1012-1319 
Journal Name : Science Journal 
Volume : 18 
Issue Number : 1 
Publishing Year : 1427 AH
2006 AD 
Number Of Pages : 20 
Article Type : Article 
Added Date : Sunday, October 11, 2009 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
صالحة حسن الزهراني S. H. M. Al-ZahraniResearcher  
أسماء احمد الحربيA. A. Al-HarbiResearcher  

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