The table shows the log likelihoods (A, B) and the Akaike information criterion (D) comparing three models to experimental data. The growth curves of all nutrient conditions and the radial profiles of
Doubling-time was determined by non linear regression from growth curves. Citrate synthase activity was measured according to the procedure presented in Materials and methods. Values were normalized b
Diazotrophic heterocyst formation in the filamentous cyanobacterium, Anabaena sp. PCC 7120, is one of the simplest pattern formations known to occur in cell differentiation. Most previous studies on h
