Fig. 4From: Characterization of a pathway-specific activator of milbemycin biosynthesis and improved milbemycin production by its overexpression in Streptomyces bingchenggensis Quantitative real-time RT-PCR transcription profile analysis of milA4, milE, milF, milA2, milC, milR and milA1. All RNA samples were isolated from 1, 2, 3, 5, 7 and 9 days cultures. Data are presented as the averages of three independent experiments conducted in triplicate. 16S rRNA transcription was monitored and used as the internal control. Error bars show standard deviations, *P < 0.05Back to article page