Antagonistic determination of Streptomyces spp bacteria against fungi

Abstract

In attempt to find new organisms that have the ability to produce antibiotics for
fungi biological control usage , in this study used isolated bacteria which belongs to
Streptomyces spp from cultivated soil which collected from plant root region in
Tobruk district , the soil samples were Dark brown and black , the soil was sandy
clay loam with proximately pH 7.13- 7.29 . The physiological and morphological
characterise for Streptomyces isolated samples were studied According to (Sharling
& Gottlieb 1966),where isolates showed colour properties to areal mycelia and the
colours were grey 40% , white 20%, yellow 20% and green 20%. The most of isolates
showed inability to produce soluble pigment, the isolates were tested to show the
ability to produce antifungals to prevent the growth of unicellular fungi and filament
fungi as Candida, Rhizopus, Mucor, Phoma, Aspergillus, and Trichoderma.
The results showed the ability of Streptomyces isolates to produce antimaterial against tested fungi samples which used in this study.