. 2017 Oct 13;9(10):322. doi: 10.3390/toxins9100322

Table 2.

Average saxitoxin contents in Aphanizomenon gracile UAM529 under three different temperatures. Data show average values over the entire 8-day experimental period ± standard deviation (n = 12, corresponding to 4 time points and 3 biological replicates on each time point). Superscript letters refer to groups with statistically significant differences (p < 0.05; one-way ANOVA and Holm-Sidak post hoc test).

Temperature (°C)	Total STX Content (µg mg⁻¹ DW)	Total STX Content (µg mg⁻¹ Chl a)	Extracellular STX (% of Total STX)
12	0.08 ± 0.03 ^a	8.7 ± 2.2 ^a	16.9 ± 10.2 ^a
23	0.20 ± 0.08 ^b	14.0 ± 4.3 ^a	11.8 ± 6.1 ^a
30	0.25 ± 0.07 ^b	28.6 ± 13.7 ^b	53.8 ± 15.5 ^b

Chl a = chlorophyll a; DW = dry weight: STX = saxitoxin.