Habitat preferences of Microdochium spp. on Lake Constance reeds. Summary of nested-PCR assays on 251 DNA preparations from tissue samples of P. australis. Detection frequency for each target shows the percentage of samples producing a band after the second step of the nested-PCR. Results from all seasons were pooled. Small letters compare variation between the two habitat types when analyzing each target species and each host organ separately (binomial test with P <0.05). Capital letters compare variation between the two species when analyzing each host organ and each habitat separately (binomial test with P <0.05). S/s, variation is significant; non-significant variation is not indicated. Underlined letters indicate that the variation remains significant after Bonferroni correction.