Bacterial leaf spot of peach caused by Xanthomonas arboricola pv. pruni in China
AbstractLeaf spot diseases occur widely and pose serious impacts on peach production in China. In this study, 60 symptomatic leaf samples were collected from seven provinces in China. Diseased samples were plated on nutrient agar and sucrose-peptone-agar media and purified colonies were identified as Xanthomonas arboricola pv. pruni (Xap) based on morphological features, molecular identification and pathogenicity test. Hypersensitive response and pathogenicity tests were conducted on inoculated tobacco and peach seedlings. Phylogenetic analysis of 16S rRNA gene sequences indicated that the Xap isolates clustered together with Korean, Japan and Taiwan isolates. This is the first report of bacterial leaf spot caused by Xap on peach in China.
Consultancy report for Department of Environment and Primary Industries, Victoria ::: Review of the blackberry biocontrol proposal. A critical review of the scientific merit, feasibility and quality of the proposal entitled "Development of effective biological control of European blackberry. A proposal to develop Purple Blotch Disease as a biological control agent for blackberry." The review also outlines current knowledge about the pathogen and host in terms of information needed to complete the next stage of a successful biological control program.