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Some data on fauna of parasitic nematodes of grapes
in the Nagorno-Karabakh region
K.V. Akopyan1
PhD in biological sciences
V.D. Migunova2
doctor of biological sciences
s.B. Tabolin31
PhD in biological sciences
S. H. Galstyan1
junior research scientist
1 Scientific Centre of Zoology and Hydroecology of NAS, Republic of Armenia, 0014 Yerevan, P. Sevaka st., 7, e-mail: cara_akopian@mail.ru
2 All-Russian Scientific Research Institute of Helminthology
named after K.I. Skryabin, 117218, Moscow, B. Cheremushkinskaya st., 28,
e-mail: migunova@vniigis.ru
3 Center of Parasitology of Institute of Ecology and Evolution RAS,
119071, Moscow, Leninsky pr., 33
Parasitic fauna of grapes in Martuninsk District of Nagorno-Karabakh is investigated. Soil samples were collected at the deepness of 10–20 and 20–40 cm. Release of nematodes from soil was carried out using standard methods. Plant roots were examined for nematodes under a binocular microscope. Identification of the genus and species was conducted using temporary and permanent glycerin drugs. Parasitic fauna of examined grapes is represented by 5 genera (Xiphinema, Longidorus, Helicotylenchus, Rotylenchus, Macroposthonia). 7 species were indentified: Helicotylenchus digonicus, H. dihistera, H. pseudorobustus, Macroposthonia xenoplax, Xiphinema brevicolle, X. index, X. pachtaicum. Nematodes Xiphinema – transmitters of viruses are detected in rhizosphere of damaged grape plants; these plant-parasitic nematodes are of a great economic importance because of their specific pathogenic effect; besides their direct harmful effect on plant’s root system they transmit various virus infections: grapevine leafroll virus, Arabis mosaic virus etc.
Keywords: phytoparasitic nematodes, Xiphinema, Longidorus, Helicotylenchus, Rotylenchus, Macroposthonia, nematodes – virus transmitters, grapes.