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木质素降解菌Ceriporiopsis subvermispora的研究进展 被引量:8

Research Progress of Lignin Degradationa Fungi Ceriporiopsis Subvermispora
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摘要 虫拟蜡菌Ceriporiopsis subvermispora是降解木质素选择性能力较强的白腐菌之一。其木质素氧化酶主要由氧化能力不强,只能降解酚结构的MnPs和Laccases组成,MnPs脂肪氧化或其他体系可能能有效替代木质素氧化酶中的LiPs作用,以降解非酚结构。外切葡聚糖酶的活力的缺乏和Ceriporic acid B等小分子中介体对羟基自由基的抑制使得Ceriporiopsis subvermispora在降解木质素的过程中很好地保留纤维素。足量的氮源,表面活性剂Tween-20和适量的Mn2+的添加能提高Ceriporiopsis subvermispora产木质素氧化酶的活力和降解木质素能力。 Ceriporiopsis subvermispora is one of white-rot fungi that could selectively degrade lignin. Ceriporiopsis subvermispora could produce two of lignin peroxidases: MnPs and Laccases, which could only degrade phenolic lignin structures. Per- haps, lipid peroxidation of MnPs or other mechanisms replace LiPs that could degrade nonphenolic lignin structures. Lack of exocellulase and prohibition of free hydroxy group production, makes ceriporiopsis subvermispora save most celluloses during lignin degradation. Sufficent nitrogen resource, addition of Tween-20 and Mn^2 + could improve ability lignin peroxidase production and lignin degradation.
出处 《武汉理工大学学报》 CAS CSCD 北大核心 2009年第10期104-108,共5页 Journal of Wuhan University of Technology
基金 中国科学院知识创新工程重大项目(KSCX1-YW-11) 国家高技术研究发展计划(863计划)(2007AA05Z406 2007AA100702)
关键词 白腐菌 虫拟蜡茵 木质素 选择性降解 white-rot fungi Ceriporiopsis subvermispora lignin selective degradation
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参考文献25

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