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豚草提取物对杨树烂皮病菌的抑制作用

材料写作网    时间: 2020-08-01 04:22:24     阅读:次     手机站

摘要 [目的]探讨豚草提取物对杨树烂皮病病原菌的抑制作用,为生物源农药的开发与利用提供理论依据。[方法]采用温浸-超声波连用提取法对豚草活性物质进行了提取,并研究了提取物对杨树烂皮病病原菌的抑制作用。[结果]不同浓度豚草提取物均对杨树烂皮病病原菌具有较强的抑制作用并呈线性增长趋势。[结论]豚草对真菌具有一定的抑制作用,且对生态环境及哺乳动物无害。

关键词 豚草;超声波;杨树烂皮病病原菌

中图分类号 S763.1 文献标识码 A 文章编号 0517-6611(2014)34-12111-02

Inhibition Effect of Crude Extracts of Ambrosia artemisiifolia L. against Cytospora chrysosperma

SUN Yan, ZHAO Hongying, SONG Xiaoshuang et al

(Heilongjiang Institute of Forest Protection,Harbin,Heilongjiang 150040)

Abstract [Objective] The aim was to understand inhibition effect of crude extracts of A. artemisiifolia L. against C. chrysosperma to provide theoretical basis for development and utilization of biopesticide. [Method] Crude extracts of A. artemisiifolia L. Were obtianed by the method of warm immersion with ultrasonic, and inhibition effect of the crude extracts against C. chrysosperma was studied. [Result] Different concentrations of the crude extracts had strong inhibition to the C. chrysosperma and took on linear growth. [Conclusion] A. artemisiifolia L. has certain inhibition to fungi, and is safe for eiroment and mamals.

Key words Ambrosia artemisiifolia L.; Ultrasonic; Cytospora chrysosperma (Pers) Fr.

豚草[1](Ambrosia artemisiifolia L.),又称艾叶破布草、美洲艾,隶属于菊科豚草属,为1年生草本植物,高30~150 cm,直径2.5~5.0 mm。其生命力强,易于传播,种子可随作物、水流及交通工具携带进行传播。豚草原产于墨西哥北部的索诺兰沙漠地区和美国西南部,并在俄罗斯、美国、英国、日本等国家均有广泛分布。约于20世纪30年代传入我国东北地区,近几年随着国内外交流的日益增多,豚草的种子也随之传播到我国各地,并且迅速蔓延,并在华东、华中、...



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