نوع مقاله : گزارش کوتاه
نویسندگان
1 عضو هیات علمی
2 استادیار پژوهش بخش تحقیقات گیاهپزشکی، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان یزد، سازمان تحقیقات، آموزش و ترویج کشاورزی،
3 عضو هیات علمی بخش تحقیقات گیاهپزشکی- مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی فارس
4 فارس
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
In a 2022 survey conducted in Jahrom, Fars province, Iran, the dog rose yellows (DRY) disease was observed in Rosa canina L. plants. The disease manifested as severe yellowing, leaf curling, reduced flowering, abnormal flowers and stunted growth (Fig. 1). DNA from 15 symptomatic and four asymptomatic plants was tested for phytoplasma presence. Nested PCR with P1/P7 and R16F2n/R16R2 primers (Lee et al., 1998) yielded 1.25 kbp fragments exclusively from symptomatic plants. The sequences from these samples were identical and one was submitted to GenBank (Accession No. OQ332406). BLAST analysis revealed that the Jahrom DRY (JDRY) phytoplasma sequence matched with two Iranian 16SrI-B strains: Bajgah Tragopogon dubius phyllody (KR262955) and Zarghan onion yellows (MG519854). Phylogenetic analysis placed JDRY phytoplasma within the 16SrI group, closet to the 16SrI-B subgroup (Fig. 2). This report marks the first association of a 16SrI-B phytoplasma with DRY disease in Iran. The leafhopper Circulifer haematoceps, known to vector similar phytoplasma associated with rapeseed phyllody (Salehi et al., 2011), is yet to be tested for its ability to transmit Rosa canina yellows phytoplasma.
کلیدواژهها [English]