Investigation Of Biodiversity of Nematodes (Nematoda) in Ali Nihat Gökyiğit Botanical Garden of Çukurova University


Dişkaya S. V., Avcıoğlu S., Kasapoğlu Uludamar E. B., Elekcioğlu İ. H.

ISPEC 17th INTERNATIONAL CONFERENCE ON AGRICULTURE, ANIMAL SCIENCE & RURAL DEVELOPMENT, Kırşehir, Turkey, 25 - 27 April 2025, pp.88-89, (Summary Text)

  • Publication Type: Conference Paper / Summary Text
  • City: Kırşehir
  • Country: Turkey
  • Page Numbers: pp.88-89
  • Çukurova University Affiliated: Yes

Abstract

Nematodes are organisms that have an important place among soil organisms as bioindicators in the ecosystem with their biodiversity and population densities. Nematodes interact with living and non-living factors in the soil and are one of the indicators of biodiversity in the soil ecosystem. Therefore, assessing nematode diversity in terrestrial habitats has been adopted as a common research method. In this purpose, the potential effects of plant species on soil nematode diversity were investigated by examining the nematode communities found in the rhizospheres of 24 different plant species from 14 families in different seasons in 2024-2025 at the Ali Nihat GÖKYİĞİT Botanical Garden of Çukurova University. This approach provides important contributions to habitat-based assessment of plant-nematode relationships. The nematode fauna identified in this study consisted of 21 families and 36 genera belonging to 8 orders. Plant parasites were represented by 9 families and 14 genera belonging to 2 orders (Tylenchida and Dorylaimida); bacterivores by 7 families and 17 genera belonging to 3 orders (Rhabditida, Monhysterida and Araeolaimida); fungivores by 3 genera belonging to 2 orders (Aphelenchida and Tylenchida); predators by 2 genera belonging to 1 order (Dorylaimida). The proportion of plant parasitic and free-living nematodes in the fauna was 29.62% and 70.37%, respectively. Among the free-living nematodes found in the soil samples, Cephalobus genus belonging to Cephalobidae family was found at the highest rate and the highest population density was found in Lavender (Lavandula amustifolia) plant with 506 individuals. Among the fungivorous nematodes, the genus Aphelenchoides was the most common genus and the highest population density with 265 individuals was found on Balkaymak (Helichrysum italicum).Among the plant parasitic nematodes, Paratylenchus and Tylenchus were the most common genera and the highest population densities were found in the rhizosphere of calendula (Calendula officinalis) and safflower (Carthamus tinctorius) plants, respectively. Predatory nematodes had the lowest population in the sampling and constituted 6.5% of the total population. Among these nematodes, the genus Dorylaimus with 227 individuals was found in the highest population in yellow patience (Aloe vera) plant.

Keywords: Nematode fauna, biodiversity, Cephalobidae, plant parasitic nematodes