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Former Ms.c. Saeed Sharify Rostam-Abady, Dr. Mahdieh Rostami, Dr. Farahnaz Jahanshahi Afshar, Fariba Ardeshir,
Volume 12, Issue 1 (3-2023)

Sharify Rostam-Abadi, S., Rostami, M., Jahanshahi Afshar, F., Ardeshir, F. (2023).  Three plant-parasitic nematodes of the family Longidoridae from orchards of Rafsanjan county, Iran. Plant Pathology Science 12(1),12-24.  
 Introduction: Longidoridae is a family of plant-parasitic nematodes belonging to the order Dorylaimida, that cause damage to most agricultural crops especially fruit trees by direct damage and also transmitting some plant pathogenic viruses. Considering the lack of prior research studies on this topic in the fruit orchards of Rafsanjan region, identifying and monitoring their population is important. Materials and Methods: In a study that was conducted to identify plant-parasitic nematodes of horticultural products in Rafsanjan city, some soil samples were collected from the rhizosphere of various fruit trees, in 2020. The nematodes were extracted from the soil samples using two methods, centrifugal flotation-sieving and tray technique, fixed and transferred to the anhydrous glycerin. After preparing permanent slides, the nematodes were studied using a light microscopy. The nematode species were identified based upon morphological and morphometric data using relevant valid references. Results: In this study, three species of Dorylaimida order belonging to the Longidoridae family including the two genera: Longidorus (L. africanus) and Xiphinema (X. vuittenezi and X. index) were obtained from the rhizosphere. Also, in order to confirm the traditional identification of X. vuittenezi, this species was molecularly studied using D2-D3 extension fragment of LSU rDNA. The obtained sequence of the species was 100% identical to the sequences of the other populations of X. vuittenezi in the GenBank. Conclusion: This study shows that regional nematode population monitoring needs more attention.


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