Effects of desiccation and rehydration on the water-soluble antioxidant glutathione and two related enzymes in C. vulcani and in its isolated algal and fungal partners. (a, d, and g) Desiccation. (b, e, and h) Rehydration after 3 weeks of desiccation. (c, f, and i) Rehydration after 9 weeks of desiccation. Black bars, GSSG; white bars, GSH; black cirles, G6PDH; white circles, GR. Dotted lines in rehydration graphs denote the GSH and GSSG concentrations in undesiccated controls. Data represent mean ± SE (n = 5–10).