Fig 5. Effects of individual vitamins on the algicidal rate and growth of Alcaligenes aquatilis strain F8 immobilized with acid-treated bran.

‘Control’: strain F8 immobilized with acid-treated bran; ‘+B₁, +B₂,…+E’: adding back of the respective individual vitamins to acid-treated bran during the immobilization of strain F8. Data represent the mean of three independent experiments with the SD indicated by an error bar. Red and blue dotted lines represent the control values of algicidal rate and bacterial growth (OD₆₀₀), respectively. Different lowercase letters above the columns represent statistically significant differences in growth of strain F8 under different treatments, and in the algicidal rate among treatment groups at different treatment times for strain F8 against Microcystis aeruginosa (p < 0.05).