Skip to main content
. 2021 Jan 19;22(2):961. doi: 10.3390/ijms22020961

Figure 3.

Figure 3

(A,B) Thiosulfate production from 300 μM H2S autoxidation and H2S combined with either 10 (A) or 100 μM (B) 1,4-dihydroxybenzene (DB), 1,4-benzoquinone (BQ) and 2,3,4-trihydroxybenzophenone (TP). Left panels in (A) and (B) show thiosulfate concentration, right panels show percent H2S converted to thiosulfate assuming 2 moles H2S per mole of thiosulfate. Percent conversion for DB, BQ and TP is corrected for H2S conversion. (C,D) Effects of 0.1 μM superoxide dismutase (SOD) and 0.1 μM catalase (Cat), alone and in combination, on autoxidation of 300 μM H2S, and H2S with 10 μM DB and 10 μM BQ (C) or 10 μM pyrogallol (PG; D). Percent conversion by DB, BQ and PG is corrected for H2S autoxidation. SOD did not affect thiosulfate produced by H2S autoxidation or H2S plus DB, BQ or PG, whereas Cat slightly decreased the effect of DB with or without SOD. Mean + SE; n = 8 wells per treatment; ###, p < 0.001 compared to H2S control; *, p < 0.05; ***, p < 0.001 compared to respective control.