Isolation and Identification of an Antagonistic Bacteria Strain HMQAU140045 against Three Apple Pathogenic Fungi
Zhao Yunfu
Qiu Dongxiao
Liang Chen
Wang Jianing
Abstract：An antagonistic bacterium strain HMQAU140045 with strong inhibitory activity against three fungal pathogens from apple trees (e.g.Cytospora mandshurica,Botryosphaeria dothidea,and Alternaria mali) was isolated from soil by using dilution plate method,plate growth rate and fiat confrontation culture method.The strain was identified as Bacillus amyloliquefaciens based on the 16S rDNA sequence homology,the physiological and biochemical characteristics and morphological observation.The strain had significant inhibitory effect on mycelial growth and spore germination of the three apple pathogenic fungi.After treated by HMQAU140045 fermentation filtrate,the mycelia were malformed,spores did not germinate or generated germ tubes swollen to form spherical bubbles.
Keywords：Apple fungal diseasesAntagonistic bacteria strainIsolationIdentificationBacillus amyloliquefaciens
Publication Date：2017-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：5( 54-58 )