小溪自然保护区甲基橙降解真菌的筛选及其脱色能力分析  

Screening of Methyl Orange-degrading Fungi from Xiaoxi Nature Reserve and Its Decolorization Capacity Analysis

作　　者：田启建[1] 林永慧[1] 何兴兵[1] 谭玲[1] 胡玉婷[1] 唐笑[1] 

机构地区：[1]吉首大学植物资源保护与利用湖南省高校重点实验室,湖南吉首416000

出　　处：《贵州农业科学》2011年第11期129-132,共4页Guizhou Agricultural Sciences

基　　金：湖南省教育厅项目"芽枝霉对污染水体重金属铅的吸附动力学研究"(10C1118)

摘　　要：为筛选出脱色能力强的微生物降解菌,并确定其最佳降解条件,对小溪国家级自然保护区采集的20株担子菌及20个腐木样品进行甲基橙脱色菌的筛选,并分析了染料初始浓度、pH和金属离子对脱色率的影响。结果表明:木质素白腐菌Ceriporia sp.HN-1脱色能力较强。最适染料脱色浓度为80～100mg/L,最佳染料pH为5～7,Zn2+、Cu2+、Mn2+和Fe2+的浓度分别为0.001 5mmol/L、0.001 5mmol/L、0.1mmol/L和0.15mmol/L。Twenty basidiomycetes and twenty rot wood samples from Xiaoxi Nature Reserve were chosen to screen methyl orange-degrading fungi.Then the analyses on the effects of initial dye concentration,pH and metal ions on the decolorization of methyl orange by Ceriporia sp.HN-1 were carried out.The results showed that Ceriporia sp.HN-1 had the most efficient decolorization among the colleted fungi.The optimal dye concentration was 80~100mg/L,optimal pH for decolorization was 5~7,and the optimal concentration of Zn2＋,Cu2＋,Mn2＋,Fe2＋ were 0.0015mmol/L,0.0015mmol/L,0.1mmol/L,0.15mmol/L respectively.

关 键 词：甲基橙 自然保护区 降解真菌 微生物 脱色能力 

分 类 号：S154.3[农业科学—土壤学]