A rapid, sensitive, and simple method was developed to detect the sapstain
fungi Ophiostoma piceae and O. quercus in stained wood. By using microwave
heating for DNA extraction and PCR with internal transcribed spacer-derived
-specific primers, detection was feasible within 4 h, even with DNA obtaine
d from a single synnema. This method can easily be extended for the detecti
on of other wood-inhabiting fungi.