Abstract

In March 2011, witches’ brooms comprising many small shoots were observed on desert rose plants, Adenium obesum, in PyinOoLwin, Myanmar. The causal agent of the symptomatic leaves was diagnosed as a phytoplasma by polymerase chain reaction (PCR) analysis. Sequence analysis of the PCR product (1.8 kbp) showed the closest phylogenic relationships with members of the peanut witches’ broom phytoplasma group. Additionally, phylogenetic analyses revealed the phytoplasma is a member of ‘Candidatus Phytoplasma aurantifolia’. This is the first report of desert rose plant as a new host for ‘Ca. P. aurantifolia’.

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