Yazar "Yilmaz, Aysenur" seçeneğine göre listele

Listeleniyor 1 - 2 / 2
  • [ X ]
    Öğe
    First Record of Meloidogyne javanica (Treub, 1885) (Chitwood, 1949) on Lettuce (Lactuca sativa L.) Growing Areas in the Southern Marmara Region
    (Kahramanmaras Sutcu Imam Univ Rektorlugu, 2024) Yilmaz, Aysenur; Cakmak, Taylan; Gozel, Ugur
    Root-knot nematodes are the most important plant parasitic nematode group due to their wide host range and difficulties in control and cause significant quality and yield losses in vegetables including lettuce plants. Root-knot nematodes are causing symptoms such as yellowing, wilting, and stunting on lettuce plants. For monitoring lettuce fields for detecting nematode-infected areas, surveys were made to the lettuce growing areas of & Ccedil;anakkale province in the winter months of 2021-2022 and the plants infected with root-knot nematodes were examined and pure nematode cultures were obtained in the laboratory. A total of 16 plant and soil samples were taken and 3 of them were found to be infected with root-knot nematodes. Species identification was made using morphological methods and morphometric measurements from second-stage infective juvenile and female individuals obtained from pure cultures. As a result, the first record of Meloidogyne javanica in lettuce-growing areas in the Southern Marmara Region was made in this study.
  • [ X ]
    Öğe
    Identification of Root-knot Nematode ( Meloidogyne spp. Goeldi, 1887) (Tylenchida: Meloidogynidae) Species in Celery ( Apium graveolens L.) (Apiaceae) Growing Areas of Çanakkale Province
    (Kahramanmaras Sutcu Imam Univ Rektorlugu, 2024) Yagcikose, Serifali; Uysal, Gulsum; Yilmaz, Aysenur; Devran, Zubeyir; Gozel, Ugur
    In this study, the species and extensiveness of root-knot nematodes ( Meloidogyne spp. Goeldi, 1887) (Tylenchida: Meloidogynidae) causing yield loss in the celery ( Apium graveolensL.) L.) (Apiaceae) production areas of & Ccedil;anakkale were determined. For this purpose, celery plant roots and soil samples were taken by making non-periodical surveys of a total of 75 different celery growing areas in & Ccedil;anakkale province and districts in 2020-2021. Females of root-knot nematodes and second-stage juveniles (J2s) from egg masses were obtained from celery samples brought to the laboratory. Morphological identification of root-knot nematode species was done by making sections obtained from perineal regions of female individuals and morphometric measurements were performed from J2s for each population. For molecular identification, DNA was then extracted from samples and analyzed by species-specific primers referring to the most common Meloidogyne spp. Meloidogyne javanica (Treub, 1885) Chitwood,1949 in 9 samples, and M. arenaria (Neal, 1889) in 5 samples were determined based on morphologic-morphometric and molecular methods. The result of the study indicated that the rate of root- knot nematode infestation in celery cultivation areas in & Ccedil;anakkale was 18,6%. The infestation rates of M. javanica and M. arenaria determined in celery growing areas in the province were 12% and 6.6%, respectively. In this study, M. javanica and M. arenaria species were detected for the first time in the celery fields of & Ccedil;anakkale province.