Evaluation of fungi isolated from the galleries of the striped ambrosia beetle Xyloterus lineatus (Ol.) (Col., Scolytidae)
G Babuder,F Pohleven
Fungi from the galleries of the striped ambrosia beetle Xyloterus lineatus (Trypodendron lineatum) (Ol.) found in spruce logs were studied. The following fungi were isolated and identified: Trichoderma harzianum Rifai, the yeast Pichia anomale Hansen (Kurzman), the blue-stain fungus Ceratocystis piceae (graphium) (Münch) Bakshi and a fungus closely similar to Ceratocystis araucariae (anamorph). The growth rate of the fungi was determined on potato dextrose agar (Difco). The most intensive mycelial growth activity was observed at 20 and 25°C. Fungi stained the wood but did not cause significant weight loss of spruce and pine sapwood samples in laboratory conditions. Enzymatical activity was studied by using simple laboratory test methods. Specific ectoenzymes involved in wood decay were determined.