首页|篦子三尖杉内生真菌gyzy-9的鉴定及其抑菌活性研究

篦子三尖杉内生真菌gyzy-9的鉴定及其抑菌活性研究

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为研究濒危药用植物篦子三尖杉(Cephalotaxus oliveri Mast)内生真菌gyzy-9的发酵产物及其抑菌活性,对其发酵产物进行了HPLC分析,并对其抑菌活性进行了纸片法检测,同时还对菌株gyzy-9的ITS序列进行了聚类分析.HPLC分析结果表明,菌株gyzy-9能够产生高三尖杉酯碱(Homoharringtonine),其发酵液对表皮葡萄球菌(Staphylococcus epidermidis)、提取物对枯草芽孢杆菌(Bacillus subtilis)的抑菌效果较强,抑菌圈直径均大于15 mm.对gyzy-9菌株ITS序列的系统发育聚类分析结果表明,gyzy-9为平革菌属(Phanerochaete sp.)真菌.对此菌株的研究为进一步研发生产三尖杉药用活性成分提供了条件.
Identification and Antimicrobial Activity Analysis of Endophytic Fungi Strain gyzy-9 from Cephalotaxus oliveri
In order to analyze the fermented products and detect the antimicrobial activity of the endophytic fungi strain gyzy-9 isolated from Cephalotaxus oliveri Mast, a rare and endangered medicine plant, the fermented products, antibacterial activity and internal transcribed spacer (ITS) sequence of gyzy-9 were studied by HPLC analysis, paper disc method and cluster analysis respectively. The results of HPLC showed that gyzy-9 could produce homoharringtonine. Additionally, the extracts from its ferment broth and mycelium pellet showed the bacteriostasis on Staphylococcus epidermidis and Bacillus subtilis was stronger as the inhibition zone diameter was wider than IS mm. The strain gyzy-9 was identified as Phanerockaete sp. Based on the morphological traits and ITS sequence cluster. This research was important for further study on the officinal components production.

Cephalotaxus oliveri Mastendophytic fungushomoharringtonineHPLC

韩洁、赵杰宏

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贵阳中医学院基础部微生物教研室,贵阳550002

贵州省烟草科学研究所,贵阳550018

篦子三尖杉 内生真菌 高三尖杉酯碱 高效液相色谱

贵州省中医药管理局中医药、民族医药科学技术研究专项

2009108

2011

湖北农业科学
湖北省农业科学院 华中农业大学 长江大学 黄冈师范学院

湖北农业科学

CSTPCD北大核心
影响因子:0.442
ISSN:0439-8114
年,卷(期):2011.50(12)
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