First report of a 'Candidatus Phytoplasma aurantifolia'-related strain associated with leaf roll symptoms on eucalyptus in Iran.
During 2015-16, symptoms of leaf roll, yellowing, little leaf and short internodes were observed on eucalyptus (Eucalyptus camaldulensis) trees in Ahvaz, southwestern Iran. Leaf samples from 3 diseased trees growing in the downtown regions and eastern and northern suburbs and one symptomless tree from each region were tested for phytoplasmas. The causal pathogen was isolated and identified as Phytoplasma aurantifolia 16SrII strain based on various molecular analyses. The obtained sequence was deposited in GenBank (accession no. KX088462). This is thought to be the first report of a P. aurantifolia 16SrII strain infecting eucalyptus trees in Iran.