title: [Isolation of endophytic bacteria in roots of Panax ginseng and screening of antagonistic strains against phytopathogens prevalent in P. ginseng].
abstract: In this study, endophytic bacteria were isolated from roots of P. ginseng by plate culture method, and as a result, 40 endophytic bacterial strains were isolated, Bacillus spp. and Pseudomonas spp. were predominant. By confront culture method, two antagonistic endophytic bacterial strain, ge15 (Stenotrophomonas maltophilia) and ge25 (Bacillus sp. ) against Cylindrocarpon destructans, Sclerotinia schinseng and Alternaria pana were identified. The inhibition zone of ge15 to them were 5.5, 22.0, 14.8 mm, respectively; and which were 12.7,16.5,9.0 mm for ge25. The Results indicate that endophytic bacteria have biocontrol potential on ginseng pathogens, and which can be used as a bio-control factor on ginseng soilborne diseases control.
authors.affiliation: Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China. liyong@implad.ac.cn
authors.forename: Yong
authors.initials: Y
authors.lastname: Li
authors.forename: Dongyue
authors.initials: D
authors.lastname: Zhao
authors.forename: Wanlong
authors.initials: W
authors.lastname: Ding
authors.forename: Yixin
authors.initials: Y
authors.lastname: Ying
mesh_terms: D001419:Bacteria / Q000302:isolation & purification*; D018407:Bacterial Physiological Phenomena; D060026:Endophytes / Q000302:isolation & purification* / Q000502:physiology*; D005894:Panax / Q000382:microbiology*; D018517:Plant Roots / Q000382:microbiology*