Fig. 2From: Identification and application of a growth-regulated promoter for improving l-valine production in Corynebacterium glutamicumExpression of the green fluorescent protein (GFP) under control of the growth-regulated promoter or the tuf promoter by using plasmid. Cell fluorescence intensity was normalized to cell density. Measurement of unit fluorescence intensity of cells at 510 nm was performed using an ultraviolet–visible spectrophotometer. Mean ± standard deviations were calculated from three biological replicatesBack to article page