Do the rpoD hypercompetence mutations eliminate the normal diauxic shift?

Conclusion: I was wrong. TherpoD mutants are just as likely to show a clear diauzic shift blip as KW20.Just to further complicate the picture, here's a Bioscreen run using a quite different strain, a clinical strain called 86-028NP, whose DNA sequences differ by 2-3% from the KW20 sequences: No sign of a diauxic shift. Maybe KW20's diauxic shift was selected for by many generations of growth in lab cultures!
Source: RRResearch - Category: Molecular Biology Authors: Source Type: blogs