Fig. 3.

The effect of ABA pretreatment on heat production by Peltigera polydactylon before desiccation, while desiccated and during rehydration. (A) Following 3-d pretreatment with ABA or distilled water (control); (B) after desiccation for 3 h to a water content of approx. 0·1; (C) after rehydration. Open circles, control material; closed triangles, ABA-pre treated material. Points represent selected fitted values with 95 % confidence limits, calculated using the ‘Spline’ program of Hunt and Parsons (1974), n = 3 (control) or 4 (ABA-pretreated).