Dynamics of cellular alkaline phosphatase activity (APA) during batch cultures of <i>C</i>. <i>peruvianus</i> cells in F/2 medium and in P-limit medium.

(a) Growth curves (average cell numbers with standard deviations as error bars) in F/2 medium (dotted line) and in P-limit medium (dashed line). (b) Cellular APA in F/2 medium (dotted line) and in P-limit medium (dashed line). Note the sharp in increase at the end of the lag phase and the steep reduction of cellular APA during the exponential growth phase.