多功能列当生防镰刀菌的筛选及种类鉴定

doi:10.16409/j.cnki.2095-039x.2016.06.017

中国生物防治学报 ›› 2016, Vol. 32 ›› Issue (6): 788-793.DOI: 10.16409/j.cnki.2095-039x.2016.06.017

多功能列当生防镰刀菌的筛选及种类鉴定

王亚娇, 纪莉景, 栗秋生, 王连生, 肖颖, 孔令晓

河北省农林科学院植物保护研究所/河北省有害生物综合防治工程技术研究中心/农业部华北北部作物有害生物综合治理重点实验室, 保定 071000

出版日期:2016-12-08 发布日期:2016-12-07
通讯作者: 孔令晓,研究员,E-mail:konglingxiao163@163.com
作者简介:王亚娇(1988-),硕士,研究实习员,E-mail:yajiaowang515@163.com
基金资助:
河北省财政项目（F13R10001）；河北省财政基本科研业务费（494-0401-JBN-6440）

Isolation and Identification of Multifunction Bio-control Agent Fusarium against Orobanche cernua

WANG Yajiao, JI Lijing, LI Qiusheng, WANG Liansheng, XIAO Ying, KONG Lingxiao

Institute of Plant Protection, Hebei Academy of Agricultural and Forestry Sciences/IPM Center of Hebei Province/Key Laboratory of Integrated Pest Management on Crops in Northern Region of North China, Ministry of Agriculture, Baoding 071000, China

Online:2016-12-08 Published:2016-12-07

摘要/Abstract

摘要： 从河北省张家口地区种植的烟草上采集的感病弯管列当植株，从中分离得到20株镰刀菌，采用孢子悬浮液浸根和灌根法对小麦、玉米、棉花、向日葵、番茄、烟草、辣椒、茄子、西瓜、甜瓜等作物和蔬菜进行了安全性检测，筛选出对主栽作物和蔬菜安全且具有促生作用的4个菌株。其中菌株Br-2对烟草、辣椒、西瓜有显著促生作用，且对弯管列当的防治效果最好：施用菌株Br-2后烟草、辣椒、西瓜增高分别为123.53%、62.16%、28.95%；其发酵上清液对弯管列当种子萌芽抑制率为71.79%；小区试验中对弯管列当的寄生率防效为50%，寄生度防效为79.38%；田间试验中对弯管列当的寄生率防效为58.27%，寄生度防效为75.70%。形态学和分子生物学鉴定结果表明菌株Br-2为尖孢镰刀菌。

关键词: 弯管列当, 生物防治, 镰刀菌, 鉴定

Abstract: Twenty Fusarium strains were isolated from the diseased Orobanche cernua in Zhangjiakou District, Hebei Province. Safety analysis with the root immersion and inoculation method demonstrated that four strains were relatively safe and had evident growth-promoting effect on the tested crops and vegetables (wheat, maize, cotton, sunflower, tomato, tobacco, pepper, eggplant, watermelon, melon). Among all the four strains, strain Br-2 had significant effect on promoting the growth of tobacco, pepper and watermelon, and it also had the best control effect to O. cernua:The plant height of tobacco, pepper and watermelon increased 123.53%, 62.16% and 28.95%, respectively, after applying strain Br-2. The fermentation supernatant of strain Br-2 could inhibit seed germination of O. cernua by 71.79%. In plot experiments, the parasitic rate of strain Br-2 to O. cernua was 50% and the parasitic degree was 79.38% in field trials.

Key words: Orobanche cernua, biological control, Fusarium, identification

中图分类号:

S476

王亚娇, 纪莉景, 栗秋生, 王连生, 肖颖, 孔令晓. 多功能列当生防镰刀菌的筛选及种类鉴定[J]. 中国生物防治学报, 2016, 32(6): 788-793.

WANG Yajiao, JI Lijing, LI Qiusheng, WANG Liansheng, XIAO Ying, KONG Lingxiao. Isolation and Identification of Multifunction Bio-control Agent Fusarium against Orobanche cernua[J]. journal1, 2016, 32(6): 788-793.

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多功能列当生防镰刀菌的筛选及种类鉴定

Isolation and Identification of Multifunction Bio-control Agent Fusarium against Orobanche cernua

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