两株石斛内生炭角菌的鉴定及活性成分初步研究  

Study on identification of two strains of endophytic Xylaria of dendrobium and its active composition

作　　者：张禧庆[1] 康冀川[1] 何劲[1] 韩晓丽[1] 黄庆华[1] 

机构地区：[1]贵州省生化工程中心,贵州贵阳550025

出　　处：《西南农业学报》2008年第2期317-322,共6页Southwest China Journal of Agricultural Sciences

基　　金：国家自然科学基金项目(30660002)

摘　　要：对石斛内生炭角菌进行鉴定及活性成分初步研究。从流苏石斛的茎和长苏石斛的叶片中分离出两株炭角菌,将其编号为lsjz和csyz。运用形态学和分子生物学相结合的方法对这两株菌进行鉴定,结果表明:lsjz和csyz为Xylaria venosula。并测定了这两株菌的发酵终点、胞内及胞外多糖含量、胞内及胞外水溶性蛋白含量、抑菌活性等。Two Xylaria strains（ lsjz and csyz） isolated from the stem of Dendrobium fimbiratum and leaf of Dendrobium brymerianum were identificated by morphology and molecular biology. The results show that lsjz and csyz is Xylaria venosula. Their fermentation ending-point, contents of pollysaccharide and water-soluble protein, and baeteriostasis activity were determined.

关 键 词：炭角菌 发酵终点 多糖 水溶性蛋白 抑菌活性 

分 类 号：S682.31[农业科学—观赏园艺]