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Figure 6 | Microbial Cell Factories

Figure 6

From: L-Rhamnose induction of Aspergillus nidulans α-L-rhamnosidase genes is glucose repressed via a CreA-independent mechanism acting at the level of inducer uptake

Figure 6

Inhibition of rhamnose uptake by glucose. Time-course measurements of rhamnosidase activity and the amount of sugar remaining in the cultures during cultivation of the A. nidulans wild-type (creA+; panels A and C) and the carbon catabolite derepressed creAd30 (panels B and D) strains in MM containing either 1% w/v rhamnose (panels A and B) or a mixture of 1% w/v rhamnose and 1% w/v glucose (panels C and D). Rhamnosidase activities are presented as percentages of that observed at 48 h under inducing conditions. The concentrations of rhamnose and glucose in the growth media over time are indicative of the ability to take up these monosaccharides. Symbols: (•) concentration of rhamnose, (□) concentration of glucose, and (X) rhamnosidase activity. Data points are represented as the mean and standard deviation of three independent experiments.

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Microbial Cell Factories

ISSN: 1475-2859

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