Microcystis aeruginosa strains Algae   CPCC124 CPCC299 CPCC300 Chlorella Protothecoids Cell count/ml 2.97E+07 2.14E+08 4.2E+07 N/A mcyE gene copy/ml negative 4.10E+07 9.78E+05 negative 16S rRNA copy/ml 1.75E+06 7.5E+06 5.78E+05 negative

Table 1: rt-QPCR of three Microcystis aeruginosa strains and one algae strain for mcyE and 16S rRNA.