Figure 1.
Streptomyces davawensis is roseoflavin resistant. Streptomyces davawensis (a) and the closely related species Streptomyces lividans (b), S. coelicolor (c), Streptomyces albus (d) and Streptomyces avermitilis (e) were tested with respect to roseoflavin sensitivity. To each of the sectors of the YS plates, ∼50 000 spores of the different Streptomyces species were applied and incubated aerobically for 60 h at 30°C. Only the YS plate to the right contained the antibiotic roseoflavin (200 µM).