Abstract
AbstractMelia azedarach var. japonica trees with leaf yellowing, small leaves and witches' broom were observed for the first time in Korea. A phytoplasma from the symptomatic leaves was identified based on the 16Sr DNA sequence as a member of aster yellows group, ribosomal subgroup 16SrI‐B. Sequence analyses of more variable regions such as 16S–23S intergenic spacer region, secY gene, ribosomal protein (rp) operon and tuf gene showed 99.5−100% nucleotide identity to several GenBank sequences of group 16SrI phytoplasmas. Phylogenetic analysis confirmed that the Melia azedarach witches' broom phytoplasma belongs to aster yellows group.
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