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Photosynthesis:respiration (P:R) quotient as function of increasing temperatures in the four Klebsormidium isolates BIOTA 14,614.7 (African Strain A), BIOTA 14613.5e (African Strain B), BIOTA 14614.18.24 (African Strain C) and SAG 384-1 (Arctic Strain) (n = 3, mean value ± SD). Significances among the treatments were calculated by one-way ANOVA (p < 0.001). Different capital letters represent significant differences among the temperatures as revealed by Tukey’s post hoc test.
