ACTA AGRICULTURAE BOREALI-SINICA ›› 2013, Vol. 28 ›› Issue (4): 223-227. doi: 10.3969/j.issn.1000-7091.2013.04.041

Special Issue: Sweet pepper

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Screening and Identification of Microbes against Pricklyash Peel Ear Blight Disease

LI Jian-yuan1, ZHANG Na1, LIU Feng1, ZHANG Xu-ming2, ZHANG Ting1, 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. Plant Protection Station of Shahe, Hebei Province, Xingtai 054100, China
  • Received:2013-04-28 Published:2013-08-28

Abstract: The objective of this research was to screen and identify the biocontrol agents against the pathogen which cause pricklyash peel ear blight disease.Inhibition zone measurement and duel culture method were employed to screen the biocontrol agents.The biocontrol agents were identified according to the morphology characters,bioassay and 16S rD- NA sequence analysis.Four bacterial agents of the screened 305 strains with the ability of inhibition the pathogen of ear blight disease in the inhibition zone test on PDA plates were obtained.Among them,strain Z- X- 225 displayed the stron- gest antagonists than the others with inhibition zone over 8 mm.Pathogens of apple alternaria blotch,wheat scab,cotton fusarium wilt,and tomato gray mould also could be inhibited by the fermentation liquids of the strain.The strain was i- dentified as Paenibacillus polymyxa by combining biological characteristics with molecular technique.

Key words: Pricklyash peel ear blight disease, Alternaria alternata (Fries) Keissler, Biological control, Paeni- bacillus polymyxa

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Cite this article

LI Jian-yuan, ZHANG Na, LIU Feng, ZHANG Xu-ming, ZHANG Ting, YANG Wen-xiang, LIU Da-qun. Screening and Identification of Microbes against Pricklyash Peel Ear Blight Disease[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2013, 28(4): 223-227. doi: 10.3969/j.issn.1000-7091.2013.04.041.

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