E. Memili et B. Weisblum, ESSENTIAL ROLE OF ENDOGENOUSLY SYNTHESIZED TYLOSIN FOR INDUCTION OF ERMSF IN STREPTOMYCES-FRADIAE, Antimicrobial agents and chemotherapy, 41(5), 1997, pp. 1203-1205
We compared ermSF induction in wild-type Streptomyces fradiae NRRL B-2
702 and that in GS-14, a ty1A mutant which cannot synthesize tylosin.
Our findings suggest that (i) endogenously synthesized tylosin plays a
n obligatory role in ermSF induction and (ii) tylosin, or a biosynthet
ic intermediate beyond tylactone, has an ''autocrine'' function that i
nduces ErmSF synthesis, thereby enabling S. fradiae to resist higher l
evels of tylosin.