华北农学报 ›› 2015, Vol. 30 ›› Issue (S1): 278-282. doi: 10.7668/hbnxb.2015.S1.050

所属专题: 小麦 植物保护

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小麦内生细菌W-1的分离筛选及其对小麦纹枯病菌的抑制作用

张毓妹1, 李寒冰1, 毕铭照2, 王志1, 张娜1, 杨文香1, 刘大群1   

  1. 1. 河北农业大学 植物病理学系, 河北省农作物病虫害生物防治工程技术研究中心, 国家北方山区农业 工程技术研究中心, 河北 保定 071001;
    2. 河北省邢台市农业局, 河北 邢台 054000
  • 收稿日期:2015-10-16 出版日期:2015-12-28
  • 通讯作者: 杨文香(1966-),女,河北沧州人,教授,博士,博士生导师,主要从事分子植物病理学及小麦病害生物防治研究;刘大群(1958-),男,河北石家庄人,教授,博士,博士生导师,主要从事分子植物病理学及植物病害生物防治研究.
  • 作者简介:张毓妹(1989-),女,河北邢台人,在读硕士,主要从事小麦病害防治与分子植物病理学研究.
  • 基金资助:
    河北省现代农业产业体系小麦产业创新团队建设项目

Screening of Wheat Endophytic Bacteria W-1 and the Inhibition to Rhizoctonia cerealis

ZHANG Yu-mei1, LI Han-bing1, BI Ming-zhao2, WANG Zhi1, ZHANG Na1, YANG Wen-xiang1, LIU Da-qun1   

  1. 1. Department of Plant Pathology, Agricultural University of Hebei, Biological Control Center of Plant Diseases and Plant Pests of Hebei Province, National Engineering Research Center for Agriculture in Northern Mountainous Areas, Baoding 071001, China;
    2. Xingtai Agriculture Bureau of Hebei, Xingtai 054000, China
  • Received:2015-10-16 Published:2015-12-28

摘要: 小麦纹枯病是小麦生产上的重要病害、难防病害之一,寻找安全高效防治途径是控制该病害的一项任务.内生细菌的筛选与应用是生物防治中的热点之一,为筛选获得对小麦纹枯病菌有拮抗作用的内生细菌,丰富小麦纹枯病的防治方法,采用涂布平板法从小麦植株中分离内生菌,并通过抑菌圈法和平板对峙培养法筛选得到对小麦纹枯病菌有明显抑制作用的菌株.结果表明,分离得到的8株内生菌菌株中,有4株菌株对小麦纹枯病菌有拮抗作用,其中W-1的抑菌效果最好;用其发酵液处理小麦纹枯病菌,导致菌丝形态畸形、消融,甚至断裂;发酵液处理的小麦生长正常,且该菌株可以在小麦植株中稳定定殖.

关键词: 小麦纹枯病, 植物内生细菌, 拮抗作用, 筛选

Abstract: Wheat sharpeye sport caused by Rhizoctonia cerealis is very important and difficult control disease in wheat production.Exploring new safely,high efficiency control method is an important test in this disease control.Screening and applying the endophytic bacteria is an important focus in biological control of plant disease.In order to acquire endophytic bacteria against R.cerealis and enrich the methods of control wheat sharp eyespot,the endophytic bacteria strains from wheat were isolated by using spread plate method.The antagonistic strains were screened by inhibition zone method and tablet confrontation culture method.The results showed that 4 of 8 plants endophytic bacteria strains isolated from the wheat displayed antagonistic activity to Rhizoctonia cerealis,and W-1 was the best one.The mycelia of Rhizoctonia cerealis were treated with fermentation liquid of W-1 and showed deformity,ablation and fracture.However,the wheat could grow normally treated with fermentation liquid of W-1.Colonization test showed that the isolate W-1 could colonize in wheat stably.

Key words: Wheat sharp eyespot, Endophytic bacteria, Antagonism, Screening

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引用本文

张毓妹, 李寒冰, 毕铭照, 王志, 张娜, 杨文香, 刘大群. 小麦内生细菌W-1的分离筛选及其对小麦纹枯病菌的抑制作用[J]. 华北农学报, 2015, 30(S1): 278-282. doi: 10.7668/hbnxb.2015.S1.050.

ZHANG Yu-mei, LI Han-bing, BI Ming-zhao, WANG Zhi, ZHANG Na, YANG Wen-xiang, LIU Da-qun. Screening of Wheat Endophytic Bacteria W-1 and the Inhibition to Rhizoctonia cerealis[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2015, 30(S1): 278-282. doi: 10.7668/hbnxb.2015.S1.050.

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