| detection and molecular characterization of an aster yellows phytoplasma in poker statice and queen anne's lace in alberta, canada. | queen anne's lace and poker statice plants were found with a yellows-type disease with typical phytoplasma symptoms in an experimental farm near brooks, alberta in 1996. phytoplasma bodies were detected by transmission electron microscopy in phloem cells of symptomatic plants, but not in healthy plants. the presence of a phytoplasma was confirmed by analysis with the polymerase chain reaction. using a pair of universal primer sequences derived from phytoplasma 16s rrna, an amplified product of t ... | 2004 | 15160606 |