【作者】 李敏； 田亚宾； 闫伟；
【Author】 LI Min1,TIAN Ya-bin1,YAN Wei 2(1.College of Life Science and Technology of Inner Mongolia Normal University,Huhhot InnerMongolia 010022; 2.Forestry college of Inner Mongolia Agricultural University,Huhhot InnerMongolia 010019)
【机构】 内蒙古师范大学生命科学与技术学院； 内蒙古农业大学林学院；
【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%。
【Abstract】 The effects of metal ions on mycelium growth and extracellular polysaccharide production of Tricholoma mongolicum 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；
【Key words】 Metal ions； Tricholoma mongolicum； Extracellular polysaccharide；
【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)
【分类号】S646.9