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The Screening of Biocontrol Bacteria Against Vegetable Root-knot Nematode and Identification of Bacterial Strain HJT2-1(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2015年08
Page:
120-123
Research Field:
Publishing date:

Info

Title:
The Screening of Biocontrol Bacteria Against Vegetable Root-knot Nematode and Identification of Bacterial Strain HJT2-1
Author(s):
HUO Jian-fei1; REN Wen-lai2; HAO Yong-juan1; LIU Chun-yan1; WANG Yong1; WANG Wan-li1
(1.Plant Protection Institute of Tianjin,Tianjin 300381; 2.Agriculture Bureau of Wen’an County Langfang City,Langfang，Hebei 065800)
Keywords:
vegetable root-knot nematodes; biocontrol bacteria; screening; identification
PACS:
S 436.44
DOI:
10.11937/bfyy.201508032
Abstract:
Taking 306 bacterial strains which were isolated from vegetable soils of greenhouses in seven different areas of Tianjin as material，the effect of fermentation liquor of 306 bacterial strains on the death rate of Meloidogyn incognita (J2) by using methylene blue stain method.The results showed that the bacterial strain HJT2-1 caused more than 81.3% of corrected mortality against J2，and the control effect in greenhouse could reach to 55.6% and was lower than Avermectin.The bacterial strain HJT2-1 was preliminarily identified as Pseudomonas by analyzing the sequence of bacterial ribosomal DNA internal transcription space.This experiment obtained strain HJT2-1 which was effective to J2，and laid a solid foundation to develop biocontrol preparations against root-knot nematode.

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Last Update: 2015-08-07