Laccase and phosphatase activities of the dominant ectomycorrhizal types in a lowland oak forest
Résumé
The year-round dynamics of laccase and acid phosphatase activities of ectomycorrhizas (EM) were monitored in an oak forest, using a microplate photometric method using individual EM root tips. Among the most frequent and abundant EM morphotypes, those of Lactarius quietus and Cortinarius anomalus showed a peak of laccase activity in spring, while those of Xerocomus chrysenteron displayed highest laccase activities in summer and autumn. In comparison, less seasononal differences were observed in root EM acid phosphatase activity. This suggests that the different EM types within the EM community perform complementary functions depending on season. q 2005 Published by Elsevier Ltd.