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목이버섯 배지 오염 곰팡이균의 분리, 동정 및 생물학적 방제제 선발
김서연,조미주,안선민,박지윤,박지원,홍성국,김지우,차주훈,노유진,김다솜,전미진,지원재,박숙영,Seoyeon Kim,Miju Jo,Sunmin An,Jiyoon Park,Jiwon Park,Sungkook Hong,Jiwoo Kim,Juhoon Cha,Yujin Roh,Da Som Kim,Mi jin Jeon,Won-Jae Chi,Sook-Young Park 한국식물병리학회 2024 식물병연구 Vol.30 No.1
Black wood ear mushroom (Auricularia auricula-judae) is one of the most economically important mushrooms in China, Japan, and Korea. The cultivation of wood ear mushrooms on artificial substrates is more efficient in terms of time and cost compared with their natural growth on trees. However, if the substrate cultivation is infected by fast-growing fungi, the relatively slow-growing ear mushroom will be outcompeted, leading to economic losses. In this study, we investigated the competitive fungal isolates from substrates infected with fast-growing fungi for the cultivation of ear mushrooms in Jangheung and Sunchon, Korea. We collected 54 isolates and identified them by sequencing their internal transcribed spacer region with morphological identification. Among the isolates, the dominant isolates were Trichoderma spp. (92.6%), Penicillium spp. (5.6%), and Talaromyces sp. (1.8%). To find an appropriate eco-friendly biocontrol agent, we used five Streptomyces spp. and Benomyl, as controls against Trichoderma spp. and Penicillium spp. Among the six Streptomyces spp., Streptomyces sp. JC203-3 effectively controlled the fungi Trichoderma spp. and Penicillium spp., which pose a significant problem for the substrates of black wood ear mushrooms. This result indicated that this Streptomyces sp. JC203-3 can be used as biocontrol agents to protect against Trichoderma and Penicillium spp.