Spores or akinetes which are resting stages to survive harsh conditions of Cyanobacteria form close to the end of the vegetative growth period or as filaments age and are influenced by environmental factors. I am not sure but I suspect it happens over the course of a 3-7 days. Akinetes of Cyanobacteria are essentially specialized DNA storage cells.
Last edited by Bill Cody; 10/13/13 02:46 PM.
