Figure 6.

Photosynthetic and respiratory rates during compound treatments. A, Photosynthetic rates of compound-treated cells measured at 24-h intervals for 72 h using a Clark oxygen electrode. Rates are expressed as O₂ evolved per milligram of Chl (n = 3 biological replicates; ±sd). B, Respiratory rates were similarly determined by measuring oxygen consumption. Two way-ANOVA with Bonferroni posttest was applied to determine changes in experimental group over time (n = 3 ± sd). Statistically significant differences are indicated by ^*P ≤ 0.05, ^**P ≤ 0.01.