I’m studying the growth kinetics and stoichiometry of Daphnia pulex on various substrates including the cyanobacteria, Microcystis aeruginosa. I have been looking for an axenic sample of this cyanobacteria unsuccessfully for the last two months.
You can get it from the Pasteur Institute in Paris from the Cyanobacteria PCC
See on the Web: http://www.pasteur.fr/ip/easysite/pasteur/en/research/collections/crbip/general-informations-concerning-the-collections/iv-the-open-collections/iv-iii-pasteur-culture-collection-of-cyanobacteria