| aphid transmission of the ontario isolate of plum pox virus. | utilization of timed virus acquisition access probes in studies of plum pox virus (ppv) transmission by aphids demonstrated that endemic species transmitted the virus readily from plum, prunus domestica (l.) batsch; peach, p. persica (l.); or dwarf flowering almond, p. glandulosa thunberg., to peach seedlings. the green peach aphid, myzus persicae (sulzer), was shown to be the most efficient vector. acquisition of virus by green peach aphids from infected peach leaves resulted in 18-28% infected ... | 2015 | 26453705 |
| characterization of a brown rot fungus isolated from dwarf flowering almond in korea. | the fruits showing brown rot symptom on dwarf flowering almond were found in gongju, chungchungnam-do in korea in july 2005. small water-soaked lesions on the fruits were initiated, and gradually developed to soft rot covered with gray conidia. then the diseased fruits were shrunk and became grayish-black mummies. a fungus was isolated from the diseased fruit and its morphological, cultural and molecular genetic characteristics were investigated. typical blastospores of monilinia spp. were obser ... | 2007 | 24015065 |
| phylogenetic relationships among species of prunus as inferred by isozyme markers. | an isozyme survey of 34 species of prunus representing subgenera prunus, amygdalus, cerasus, and lithocerasus detected 110 presumptive alleles at 11 isozyme loci. principal component analysis was conducted on the covariance matrix derived from allelic frequencies calculated for each species. cluster analysis was performed on the first 30 principal components. results generally support traditional classification of prunus at the subgeneric level, except for members of subgenus lithocerasus and tw ... | 1990 | 24220821 |