金属离子对蒙古口蘑菌体及胞外多糖的影响  

The Effect of Metal Ions on the Mycelia Growth and Extracellular Polysaccharide Production of Tricholoma mongolicum

作　　者：李敏[1] 田亚宾[1] 闫伟[2] 

机构地区：[1]内蒙古师范大学生命科学与技术学院．内蒙古呼和浩特010022 [2]内蒙古农业大学林学院,内蒙古呼和浩特010019

出　　处：《中国食用菌》2011年第6期32-34,共3页Edible Fungi of China

基　　金：教育部高等学校科技创新工程重大项目培育资金项目(No.707014);内蒙古师范大学引进高层次人才科研启动经费项目(GCRC09017)

摘　　要：研究了5种金属离子Fe2+、Zn2+、Ca2+、Cu2+、Mg2+对蒙古口蘑的菌体生长及胞外多糖的影响。结果表明,在培养基中添加5种金属离子Fe2+、Zn2+、Ca2+、Mg2+和Cu2+,对菌体的生长都有一定的抑制作用,但却都能提高胞外多糖的产量,促进作用依次为Zn2+>Fe2+>Ca2+>Cu2+>Mg2+,最大比对照分别提高了280.3%、160.5%、83.6%、52.6%和19.2%。The effects of metal ions on mycelium growth and extracellular polysaccharide production of Tricholoma mon- golicum during fermentation were studied. The results indicated that all of five metal ions including Fe2＋, Zn2＋, Ca2＋, Mg2＋ and Cu2＋ could inhibit mycelium growth. However, they could promote polysaccharide production, and 52.6%, 83.6%, 280.3%, 160.5% and 19.2% were increased by respectively compared with the control with the order of Zn2＋〉Fe2＋〉Ca2＋〉 Cu2＋〉Mg2＋.

关 键 词：金属离子 蒙古口蘑 胞外多糖 

分 类 号：S646.9[农业科学—蔬菜学]