Diauxie and expression from the <i>spo0A</i> promoter.

<p>A strain expressing <i>luc</i> from the <i>spo0A</i> promoter (PP530) was grown in S7 minimal medium supplemented with (A) 0.5 mg/ml glucose+2.0 mg/ml arabinose, (B) 1 mg/ml glucose+1.5 mg/ml arabinose and (C) 2.5 mg/ml glucose with no arabinose. The open triangles show P<i>spo0A-luc</i> expression and the thick line shows growth.</p>