Association of Elm Yellows Subgroup 16SrV-B Phytoplasma with a Disease of Hovenia dulcis

Seralathan Kamala-Kannan, Sang Sub Han, Kui Jae Lee, Palanivel Velmurugan, Yong Hoon Lee, Jong Chan Chae, Yang Soo Lee, Jai Young Lee, Byung Taek Oh

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12 Scopus citations

Abstract

Japanese raisin (Hovenia dulcis) trees with typical phytoplasma-like symptoms were observed for the first time in South Korea. The disease, named Japanese raisin witches' broom, is progressively destructive. The cause of the graft-transmissible disease was confirmed by electron microscopy and molecular studies. The 16S rDNA sequence analysis showed that the phytoplasma was closely related to the elm yellows (EY) group, ribosomal subgroup 16SrV-B. The 16S-23S rDNA intergenic spacer region, fragment of rp operon and secY gene sequences had 96-99% similarity with members of EY phytoplasma. Based on the sequence analyses and phylogenetic studies, it was confirmed that the phytoplasma infecting Japanese raisin trees in Korea belongs to the EY group.

Original languageEnglish
Pages (from-to)171-174
Number of pages4
JournalJournal of Phytopathology
Volume159
Issue number3
DOIs
StatePublished - Mar 2011

Keywords

  • 16S-23S rDNA
  • Elm yellows phytoplasma
  • Japanese raisin tree
  • Rp operon
  • Witches' broom
  • secY gene

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