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. 2024 Oct 17;16(10):448. doi: 10.3390/toxins16100448

Figure 5.

Figure 5

Chlorophyll a contents and photosynthetic fluorescence parameters of Microcystis aeruginosa and Planktothricoides raciborskii under filtrate culture conditions. The filtrate culture was designed to culture P. raciborskii, with the filtrate from the M. aeruginosa culture solution obtained by centrifugation to remove M. aeruginosa cells or to culture M. aeruginosa with the filtrate from the P. raciborskii culture solution. Determination of the Chl a content and the photosynthetic fluorescence parameters of the cyanobacteria is described in Section 5.7. (A) Chl a content of Microcystis aeruginosa (a) and Planktothricoides raciborskii (b); (B) Fv/Fm of Microcystis aeruginosa (a) and Planktothricoides raciborskii (b). (* p < 0.05; ** p < 0.01). Fv: Variable Fluorescence; Fm: Maxima Fluorescence. M: M. aeruginosa; P: P. raciborskii; M-PF: M. aeruginosa with filtrate from P. raciborskii; P-MF: P. raciborskii with the filtrate from M. aeruginosa.