三七根腐病病原及复合侵染的研究

罗文富, 喻盛甫, 贺承福, 李忠义, 王朝梁, 崔秀明

植物病理学报 ›› 1997, Vol. 27 ›› Issue (1) : 85-91.

PDF(285 KB)
PDF(285 KB)
植物病理学报 ›› 1997, Vol. 27 ›› Issue (1) : 85-91.

三七根腐病病原及复合侵染的研究

  • 罗文富1, 喻盛甫1, 贺承福2, 李忠义2, 王朝梁2, 崔秀明2
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ON THE COMBINED INFECTION OF ROOT ROT PATHOGENS ON PANAX NOTOGINSENG

  • Luo Wenfu1, Yu Shengfu1, He Chenfu2, Li Zhongyi2, Wang Chaoliang2, Cui Xiuming2
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摘要

从三七根腐病不同发病期根部分离到假单胞杆菌Pseudomonas sp.、腐皮镰孢Fusarium solani、细链格孢Alternaria tenuis和小杆线虫Rhabditis elegans。活体接种假单胞杆菌的致病性最强,腐皮镰孢和细链格孢的致病性弱,小杆线虫无致病性。假单胞杆菌、腐皮镰孢和细链格孢混合接种的发病率都高于单独接种的发病率,尤以3种菌混合接种的发病率最高,含细菌的组合发病率高于不含细菌的发病率,说明细菌在侵染中起了主要作用。

Abstract

Pseudomonas sp., Fusarium solani, Alternaria tenuis and Rhabditis elegans were isolated from root rot of Panax notoginseng (Sanqi) at different developmental stages. In inoculation test, Pseudomonas sp. showed the strongest pathogenicity, while Fusarium solani and Alternaria tenuis were weak, Rhabditis elegans was non-pathogenic. With the three formers as inocula, the root rot rates of mixed inoculations were all higher than that of their individual inoculations. The combined inoculation of the three pathogens showed the highest pathogenicity. With new multiple range test, root rot rates among 3 combined inoculations and their individual inoculation resulted in significant diffenence (P=0.05). The present experiments reveals the fact that the bacteria played an important role in the combination infection with other fungous and nematode pathogens.

关键词

三七 / 根腐病 / 病原物 / 复合侵染

Key words

Sanqi (Panax notoginseng) / Root rot disease / Pathogens / Complex infection

引用本文

导出引用
罗文富, 喻盛甫, 贺承福, 李忠义, 王朝梁, 崔秀明. 三七根腐病病原及复合侵染的研究[J]. 植物病理学报, 1997, 27(1): 85-91
Luo Wenfu, Yu Shengfu, He Chenfu, Li Zhongyi, Wang Chaoliang, Cui Xiuming. ON THE COMBINED INFECTION OF ROOT ROT PATHOGENS ON PANAX NOTOGINSENG[J]. Acta Phytopathologica Sinica, 1997, 27(1): 85-91

基金

国家自然科学基金
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