ナミダタケの木材腐朽に対する木炭固定化トリコデルマの阻害効果

抄録

Inhibitory effects of charcoal particles immobilized Trichoderma spp. on wood degradation by a psychrophilic-house fungus, Serpula lacrymans were examined. Japanese white birch (Betula platyphylla var. japonica) blocks were covered with three kinds of the particles immobilized Trichoderma spp. (ANCT-05013, ANCT-05103 and NBRC 33016) and exposed to S. lacrymans (HFPR 0301 and HFPR 0502) at 20℃ for 12 weeks to measure mass losses. ANCT-05013 and ANCT-05103 showed superior inhibition effects on wood degradation compared to NBRC 33016. The mass losses were 0% in the particles immobilized ANCT-05013 and ANCT-05103, 9-10% in the ones immobilized NBRC 33016, and 11-18% in the absence of the particles (control). Furthermore, S. lacrymans mycelial growth (HFPR 0301 and HFPR 0502) did not occur at the charcoal surface mobilized ANCT-05013 and ANCT-05103. This study revealed that the charcoal particles mobilized ANCT-05013 and ANCT-05103 had superior inhibition performance to brown rot by S. lacrymans. The two strains of ANCT-05013 and ANCT-05103 were accepted as NBRC 113097 and NBRC 113098 in January 2018, respectively.