Fig. 1From: Multiple physiological response analyses aid the understanding of sensitivity variation between Microcystis aeruginosa and Chlorella sp. under paraquat exposures96 h population growth curves exhibited by optical density at 680 nm (OD680) in flask assays. a Microcystis aeruginosa and b Chlorella sp. Error bars are mean ± SE. **p < 0.01Back to article page