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Authors Ulubaş Serçe

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Ulubaş Serçe, Çiğdem


Publications
2

CitationNamesAbstract
Identification of ‘Candidatus Phytoplasma solani’ phytoplasma-associated diseases in eggplants exhibiting abnormal flower structure (phyllody and virescence) and witches’ broom symptoms in Şanlıurfa province Mezreli, Ulubaş Serçe (2025). Bitki Koruma Bülteni 65 (1) Ca. Phytoplasma solani
Detection of ‘Candidatus Phytoplasma mali’ and ‘Candidatus Phytoplasma prunorum’ in apple trees Meral et al. (2024). Kahramanmaraş Sütçü İmam Üniversitesi Tarım ve Doğa Dergisi Ca. Phytoplasma mali Ca. Phytoplasma prunorum

Identification of ‘Candidatus Phytoplasma solani’ phytoplasma-associated diseases in eggplants exhibiting abnormal flower structure (phyllody and virescence) and witches’ broom symptoms in Şanlıurfa province
Phytoplasmas cause infections in numerous plants in agricultural ecosystems, causing significant yield and quality losses in products. In recent years, it has been known that diseases caused by phytoplasmas cause economic losses in eggplant (Solanum melongena L.) cultivation. In Turkey, research on infections caused by phytoplasmas in eggplant growing areas is quite limited. This study was carried out to detect phytoplasma infections symptomatologically and molecularly in eggplant production areas in Şanlıurfa province. Fourteen samples were collected from eggplants exhibiting symptoms such as witches’ broom, flower abnormalities (virescence, phyllody), elongation of the pedicle, arising of new shoots from flower parts, yellowing and proliferation. Phytoplasma infection was detected in 8 symptomatic samples using 16S rRNA-specific primers, P1/P7 and R16F2n/R16R2, by direct and nested PCR. Sequence information of fragments obtained as a result of molecular studies was extracted and BLAST analyses were performed. According to nucleotide sequence similarity in the 16S rRNA gene region, it was determined that the genetic group of phytoplasma causing infection in eggplant was related to ‘Candidatus Phytoplasma solani’ (CaPsol) belonging to 16SrXII-A subgroup with 98% sequence identity. To our best knowledge, this study suggests comprehensive symptomatic diagnosis of CaPsol infecting eggplants in Türkiye.
Detection of ‘Candidatus Phytoplasma mali’ and ‘Candidatus Phytoplasma prunorum’ in apple trees
The apple orchards in Niğde, Turkiye were surveyed for ‘Candidatus Phytoplasma mali’ associated with apple proliferation disease, and the suspicious samples were tested by PCR-RFLP methods. A comprehensive study was conducted which included sampling from a total of 19 orchards from four different districts. The samples were collected according to the major symptoms of phytoplasma disease which were foliar reddening, witches’ brooms, leaf rosettes, yellowing, longer peduncles and development of undersized fruits. It was determined that six out of 62 plant samples were infected with pyhtoplasma. Also, two out of six infected samples were determined as infected by ‘Ca. P. mali’ and unexpectedly four out of six infected samples were determined as infected by ‘Ca. P. prunorum’ associated with European Stone Fruit Yellows disease. Even if the incidence of the disease (9.7%) was low, the characterized phytoplasmas were considered as a significant potential threat for these locations.
 Key words: PCR-RFLP Survey, Niğde, Apple proliferation, European stone fruit yellows
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