Fig. 10
Effect of Ca2+, Mg2+, and PO43− on FE in E. gracilis suspensions. 4Ca2+ and 4 Mg2+ represent fourfold concentration of Ca2+ (0.8 mM) and Mg2+ (20.0 mM), respectively; −P and +P represent without and with PO43− (4.4 mM), respectively. Control represents medium without Ca2+, Mg2+, and PO43−; NS, *, and ** represent p > 0.05, p < 0.05, and p < 0.01, respectively. The values represent mean ± S.D. n = 3