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    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.
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    Öğe
    First record of three plant parasitic nematode species from Mount Ararat (Agri) in Turkey
    (Entomological Soc Turkey, Ege Univ, 2019) Cakmak, Taylan; Gozel, Cigdem; Kaydan, M. Bora; Gozel, Ugur
    In this study, plant parasitic nematode fauna from Mount Ararat was determined according to altitude. A total of 30 soil samples were taken in 2013 during summer. Nematodes were extracted by a modified Baermann funnel technique. Nematodes were identified by morphology, morphometric and phylogenetic analysis based on sequences of the D2-D3 and ITS1-rRNA gene sequences. Permanent slides of individuals were made and species-specific characters were screened by scanning electron microscopy (SEM). SEM studies were processed at the Department of Animal Biology, Vegetal Biology and Ecology, SEM laboratory University of Jaen in Spain during 2014. A total of 19 plant parasitic nematodes were identified from Mount Ararat. Three plant parasitic nematodes Rotylenchus conicaudatus Atighi et al., 2011 (Nematoda: Hoplolaimidae), Heterodera trifolii Goffart, 1932 (Nematoda: Heteroderidae) and Tylenchorhynchus mangiferae (Luqman & Khan, 1986) (Nematoda: Belonolaimidae) from this study are new records for plant parasitic nematode fauna of the Turkish.
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    Öğe
    First Report of Root-Knot Nematode Meloidogyne hapla (Chitwood, 1949) (Nematoda: Meloidogynidae) on Petroselinum crispum (Mill.) Nym. ex A.W. Hill) in Türkiye
    (Kahramanmaras Sutcu Imam Univ Rektorlugu, 2023) Yilmaz, Ayenur; Cakmak, Taylan; Gozel, Ugur
    Parsley (Petroselinum crispum) is an important culinary herb originated from the Mediterranean basin, where it still can be found in wild forms, and is taxonomically positioned in the Apiaceae family. In Turkey, it is cultivated extensively in the Mediterranean and Aegean Regions, and in the Marmara Region. There are several diseases and pests affecting the yield and quality in the parsley cultivated areas. Root-knot nematodes are among the most important pests in winter crop production with the ability of a wide host plant range. Root-knot nematodes weaken the parsley plant, causing significant quality losses, and showing signs of stunting and yellowing of the leaves. In this study, parsley plants with typical symptoms of root-knot nematodes were detected in surveys conducted in canakkale province, Turkiye. Pure cultures of the root-knot nematode obtained from the roots of parsley were identified up to the species level. Species identification and diagnosis were made by morphological and morphometrical measurements from second-stage juveniles and female individuals obtained from pure cultures. As a result, Meloidogyne hapla was detected first time on parsley plants in Turkiye.
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    Soil Nematode Community Analysis of Four Chickpea Cultivated Areas in Aksaray, Türkiye
    (Kahramanmaras Sutcu Imam Univ Rektorlugu, 2025) Yilmaz, Aysenur; Saracoglu, Yasemin; Cakmak, Taylan; Gozel, Ugur
    This study investigates soil nematode communities in four distinct chickpea cultivation areas in Aksaray, T & uuml;rkiye, to understand their composition, ecological functions, and impact on soil health. Chickpeas, as the nitrogen-fixing crop, play a vital role in sustainable agriculture, supporting soil health and providing economic benefits in rural areas. Soil nematodes, however, including plant-parasitic types like root-knot and lesion nematodes, pose risks to chickpea yield by damaging root systems, thus necessitating effective management strategies. The research took place from May to December 2023 at D & uuml;zce University's Nematology Laboratory. Soil samples from four locations (Akg & uuml;l & uuml;, Ba & gbreve;& imath;nba & scedil;& imath;, Camili and G & ouml;ll & uuml;) in Aksaray were collected and using the Baermann funnel technique nematodes were exracted. Nematode identification and ecological parameter analyses used for nematode based biological monitoring were conducted with light microscopy and structured taxonomic keys. The study grouped the nematodes based on feeding behaviors, showing distinct profiles across locations: bacterivores dominated in Akg & uuml;l & uuml;, while Ba & gbreve;& imath;nba & scedil;& imath; had a higher prevalence of plant parasitic nematodes, suggesting soil biodiversity challenges. Analysis of soil food webs indicated a stressed ecosystem in Akg & uuml;l & uuml; and enriched, structured soil in Ba & gbreve;& imath;nba & scedil;& imath;, as shown by higher enrichment and structure index values. These patterns highlight the effects of soil management on nematode communities, with biodiversity directly linked to soil health and chickpea productivity. Findings emphasize that integrated pest management, including crop rotation and resistant chickpea varieties, is essential to mitigate the effects of nematodes. The study provides insights into nematode-driven soil dynamics and underscores the need for further research on nematode impacts in various agroecosystems, particularly for sustainable chickpea cultivation.