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Studies on screening of high ligninolytic activity strains from white-rotting fungus Coriolus versicolor

Ding Saojun; Wang Chuanhuai; Yie Hanlin; Cheng Mingzhang(Nanjing Forestry University, Nanjing 210037, China)  
3 2 strains of Coriolus versioolor form rotting - wood were isolated, their ligninolytic activities and lignin biodegradation ability were tested through growing on GU-PDA medium and Poplar Powder medium. It was shown their biodegradation ability and biodegradation Patterns were very difference among these strains, but they all have some extent selective. A few strains with high capocities of delignification of poplar wood were screened which degraded lignin to very large extent (about 40 % klason lignin in 30 days ) as twice as that of white - rot fungus Phanerochaete chrysosprium on the same wood, but the degradation of holocellulose was very low.The structure change of the wood were also tested by SEM photographs.
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