| ecological approach of macrolide-lincosamides-streptogramin producing actinomyces from cuban soils. | we report in this study the frequency of streptomyces strains to produce macrolide-lincosamide-streptogramin (mls) antibiotics isolated from cuban soils. the screening assay is based on the induction of mls-resistance phenotype in a clinical isolated strain of staphylococcus aureus s-18. our results suggest that of 800 streptomyces strains isolated from different soil samples, 6% were positives in the screening test used. the ferralitic red soil from pinar del río (north) provided the major perc ... | 1999 | 10530035 |