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当前位置: 首页 > 文章 > 淡紫紫孢菌对黄瓜根结线虫的防治效果 中国瓜菜 2018 (7) 35-38
Position: Home > Articles > 淡紫紫孢菌对黄瓜根结线虫的防治效果 China Cucurbits and Vegetables 2018 (7) 35-38

淡紫紫孢菌对黄瓜根结线虫的防治效果

作  者：
杨凡;蔡毓新;贾文华;甄熙;唐艳领;史宣杰
关键词：
黄瓜;淡紫紫孢菌;根结线虫;白灰制菌素
摘  要：
根结线虫(Meloidogyne spp.)是一类严重危害经济农作物并广泛分布于世界各地的重要的植物病原线虫.淡紫紫孢菌(Purpureocillium lilacinum)能够寄生于根结线虫和孢囊线虫卵,对根结线虫有很强的抑制作用.为了检验淡紫紫孢菌对黄瓜根结线虫的防治作用,测定了淡紫紫孢菌pt361对黄瓜根结线虫卵的寄生率、幼虫致死率,并分析了淡紫紫孢菌的代谢产物白灰制菌素,同时测定了其在土壤中的存活状态.结果表明,淡紫紫孢菌pt361菌株对线虫卵寄生率为72.6%.其菌株混合发酵液对黄瓜根结线虫幼虫致死率达95.2%.对pt361菌株代谢产物进行检测,发现有白灰制菌素A和B,其浓度分别为98.9%和71.2%,这可能与淡紫紫孢菌防治根结线虫的机制有关.综上所述,淡紫紫孢菌能有效防治黄瓜根结线虫.
作  者：
YANG Fan;CAI Yuxin;JIA Wenhua;ZHEN Xi;TANG Yanling;SHI Xuanjie;Horticulture Institute of Henan Academy of Agricutural Science;Henan Province Qingfa Seed Industry Co.,Ltd.;Seed Management Station of Henan Province;Inner Mongolia Meteorological Disaster Monitoring and Warning Center;
单  位：
YANG Fan%CAI Yuxin%JIA Wenhua%ZHEN Xi%TANG Yanling%SHI Xuanjie%Horticulture Institute of Henan Academy of Agricutural Science%Henan Province Qingfa Seed Industry Co.,Ltd.%Seed Management Station of Henan Province%Inner Mongolia Meteorological Disaster Monitoring and Warning Center
关键词：
Cucumber;;Purpureocillium lilacinum;;Root knot nematode;;Leucinostatins
摘  要：
Root knot nematode is a kind of important plant disease nematode, which distributes widely and causes serious harm to crop production in the world. The Purpureocillium lilacinum can inhibit root knot nematode according to parasitic on the root knot nematodes and sporangium. In order to investigate the preventive effect of Purpureocillium lilacinum on cucumber root knot nematode, the parasitic rate and larvae of mortality when the Purpureocillium lilacinum pt361 interacted with the cucumber root knot nematodes were measured, the metabolites of leucinostatins was analyzed, and the survival state of pt361 strains in soil was determined. The results showed that the parasitism rate of pt361 strains on cucumber root knot nematodes was 72.6%, and the larva fatality rate of its mixed fermentation broth could reach 95.2%on the cucumber rootworm. It was found that the concentrations of leucinostatins A and B were respectively 98.9% and 71.2% when the metabolites of pt361 strains were detected, which might be related to the prevention mechanism to control the root knot nematodes. In conclusion, the Purpureocillium lilacinum could effectively control the root nematode of cucumber.

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