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YX拟青霉菌发酵液浓缩物对马铃薯晚疫病菌的离体抑制活性

Inhibitory activity of fermentation liquid condensate of Paecilomyces farinosus against Phytophthora infestans in vitro

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【作者】 从心黎; 杨明挚; 李灿辉; 陈善娜;

【Author】 CONG Xin-li~1,YANG Ming-zhi~1,LI Can-hui~2,CHEN Shan-na~1(1.Life Science Department of Yunnan University,Yunnan Kunming 650091,China;2.Tuber and Root Crop Research Institute of Yunnan Normal University,Yunnan Kunming 650092, China)

【机构】 云南大学生命科学学院; 云南师范大学薯类作物研究所; 云南大学生命科学学院 云南昆明 650091; 云南昆明 650091; 云南昆明 650092; 云南昆明 650091;

【摘要】 测定YX拟青霉菌发酵液浓缩物(YFP)对不同生长发育阶段的马铃薯晚疫病菌的抑菌活性,发现YFP对晚疫病菌游动孢子的释放、菌丝生长具有明显的抑制作用,4g/L的YFP对晚疫病菌游动孢子释放的相对抑制率达93 36%,2g/L的YFP对菌丝生长的相对抑制率达63 00%,但YFP对孢子囊和游动孢子的萌发几乎没有抑制活性。

【Abstract】 The inhibitory activity of fermentation liquid condensate of YX Paecilomyces farinosus (YFP) against Phytophthora infestans was tested at different stages, in vitro. The results showed that YFP strongly inhibited the mycelia growth and the release of zoospores from sporangia. The mycelia growth rate was inhibited 63.00 % at dose of 2 g/ L. The inhibition rate of release of zoospores from sporangia by YFP at the dose of 4 g/ L was 93.36 %. But YFP almost had no effect on the inhibitory activity of the germination of zoospores and sporangia.

【基金】 "十五"云南省科技攻关项目(2002NG09);云大211二期建设及植物学博士点经费资助
  • 【文献出处】 西南农业学报 ,Southwest China Journal of Agricultural Sciences , 编辑部邮箱 ,2005年02期
  • 【分类号】S435.32
  • 【被引频次】29
  • 【下载频次】141
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