Multi-locus sequence analysis,conventional diagnostic tests,and inoculation studies demonstrate that a loropetalum canker disease is caused by a new pathovar of Pseudomonas syringae
Samples of loropetalum(Loropetalum chinensis)with stem cankers were submitted for diagnosis to the UF and FDACS-DPI diagnostic laboratories from Alabama and Florida nurseries in 2012.A fluorescing bacterium was isolated from the cankers and a study commenced to determine the identity and host range of the bacterium.A collection of isolates from symptomatic loropetalum plants was tested by multi-locus sequence analysis(MLSA),BiologTM,fatty acid analysis,LOPAT,semi-selective culturing,and greenhouse inoculations.Partial 16S sequence analysis,semiselective culturing,Biolog,and fatty acid analysis were not able to differentiate the loropetalum pathogen from other related Pseudomonas species or pathovars.Inoculation studies confirmed that olive was not a host of the bacterium.MLSA with housekeeping and gall-formation genes confirmed that the bacterium is a new pathovar of Pseudomonas syringae,P.syringae pv.loropetali.
Carrie Lapaire Harmon Sujan Timilsina Deborah Jones Xiaoan Sun Gary Vallad Jeffrey Jones
University of Florida Department of Plant Pathology,Gainesville FL University of Florida Department of Plant Pathology,GCREC,Wimauma,FL Florida Department of Agrculture and Consumer Services,Division of Plant Industry,Gainesville,FL
国内会议
山东潍坊
英文
13-30
2016-05-01（万方平台首次上网日期，不代表论文的发表时间）