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蛹虫草继代培养后主要生物学性状的变化The Biological Characteristics of Cordyceps militaris During Successive Transfer C

2011-10-27 09:381810

【作者】 王熙; 张佳; 张国珍;

【Author】 WANG Xi,ZHANG Jia,ZHANG Guo-zhen (Department of Plant Pathology,Key Laboratory of Plant Pathology,Ministry of Agriculture,China Agricultural University,Beijing 100193)

【机构】 中国农业大学植物病理学系农业部植物病理学重点实验室;

【摘要】 本研究观察了野生和栽培蛹虫草菌株在继代培养过程中主要生物学性状的变化。结果显示,随着培养代数的增加,蛹虫草的生物学性状发生了明显的改变,表现为菌丝生长速率逐渐下降,菌落颜色逐渐变淡并有角突变出现,产孢量明显减少,子实体形成能力也逐渐减弱甚至不能产生。为防止蛹虫草菌株的退化,应尽量减少在人工培养基上的培养代数。

【Abstract】 The main biological characteristics of the wild and cultivated strains of Cordyceps militaris during successive transfer culture were observed.The results indicated that the biological characteristics of Cordyceps militaris changed distinctly with the increase of culture generations.The mycelial growth rate slowed down,the colony color gradually faded with the appearance of colony sector,the sporulation decreased dramatically,and the ability of fruiting body formation degenerated or even failed ...

【关键词】 蛹虫草; 生长速率; 产孢; 子实体形成;

【Key words】 Cordyceps militaris; Growth rate; Sporulation; Fruiting body formation;

【基金】 国家自然科学基金项目(30770011)

【分类号】S567.35

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