Evolution of bacterial communities precipitating carbonate, in Mediterranean lagoons water and sediment: Study on experimental conditions.

To determine if carbonate precipitation is an active or passive bacterial phenomena, factorial analysis has been realized with 880 strains isolated from different samples of sea water and muds kept in various conditions of incubation. Results show the existence of a strong anti-correlation between carbonate precipitation and amino-acid ammonification. Carbonate precipitation is not a passive phenomena linked with amino-acid ammonification.