Strain differences in the mycelium of the ectomycorrhizal Tuber borchii

Four strains of Tuber borchii were grown in liquid medium containing glucos e. Evaluation of growth patterns revealed a trend of exponential growth for only one strain. Subsequently, enzyme levels were assayed and polypeptide and mRNA electrophoretic profiles were analyzed. Although the four strains were found to have many properties in common such as the growth behaviours for three strains and the levels of some glycolytic enzymes, the polypeptid e and mRNA electrophoretic patterns highlighted intraspecific variability.