title: Characteristics of Streptomyces strains isolated from soils in two landfill areas in north Jordan.
abstract: A total of 114 Streptomyces strains were isolated and purified from soils collected from Al Akider (53) and from Al Kafeer (61) landfill areas in north Jordan. The Al Akider strains were classified into 5 colour series gray (27), white (18), yellow (3), violet (3) and green (2); while the Al Kafeer strains were classified into 6 colour series white (26), gray (16), yellow (9), red (2), green (7) and blue (1). Melanin pigment was produced by 21 and 25% of the Al Akider and Al Kafeer strains, respectively, while soluble pigment was produced by 15% of the A; Akider and 21% of the Al Kafeer strains; 17% of Al Akider strains and 23% of Al Kafeer strains showed distinctive reverse side pigment. Forty, 32, 19, and 9% of the Al Akider strains had spiral, rectus, flexous and retinaculum apertum spore-chains, respectively, while the distribution of the Al Kafeer strains in the same spore-chain forms was equally 25% each. Arabinose, xylose, inositol, fructose, rhamnose, sucrose, raffinose, and mannitol were utilized by 91, 53, 89, 60, 30, 25 and 79% of the Al Akider strains and by 84, 59, 62, 64, 70, 75, 41 and 26% of the Al Kafeer strains, respectively, while only 2% of the Al Kafeer strains were found to utilize cellulose. Thirty-six percent of the Al Akider strains showed, in vitro activity against Staphylococcus aureus followed by Aspergillus niger (26%), Bacillus cereus and Saccharomyces cerevisiae (25% each), Fusarium monilliforme (21%), Candida albicans (15%), Escherichia coli (8%) and Pseudomonas aeruginosa (4%), while 51, 49, 46, 34, 25, 15, 7 and 2% of the Al Kafeer strains exhibited activity against A. niger, S. cerevisiae, B. cereus, S. aureus, F. monilliforme, C. albicans, P. aeruginosa and E. coli, respectively.
authors.affiliation: Department of Biological Sciences, Yarmouk University, Irbid-Jordan.
authors.forename: M J
authors.initials: MJ
authors.lastname: Abussaud
mesh_terms: D000898:Antibiosis; D001431:Bacteriological Techniques; D015169:Colony Count, Microbial; D007597:Jordan; D010858:Pigmentation; D012988:Soil Microbiology; D013302:Streptomyces / Q000145:classification / Q000302:isolation & purification* / Q000378:metabolism; D018505:Waste Management