Abstract
Radial growth of twelve species of wood-rotting basidiomycetes was examined over a range of temperatures on malt agar: optimum growth rate occurred at between 20 and 30 °C. Variability in growth rate of several different isolates of five of the species was assessed at 10° and 20°. A significant difference in growth rates of different isolates was found in four species at 20° but only in one species at 10°. No significant difference was detected between the Q10 coefficients of different isolates of a species. The effect of water potential on growth rate was investigated for one isolate of each of the twelve species using four different solute systems and two types of agar media. Differences were detected between the solute systems and media although a general trend of decrease in growth rate with decrease in water potential was observed. The limit for growth was about −4.4 MPa (− 45 bars).
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