Russian Journal of Nematology (2006) 14, 179-184

Vladimir N. Chizhov, Olga A. Chumakova, Sergei A. Subbotin and James G. Baldwin (2006)
Morphological and molecular characterization of foliar nematodes of the genus Aphelenchoides: A. fragariae and A. ritzemabosi (Nematoda: Aphelenchoididae) from the Main Botanical Garden of the Russian Academy of Sciences, Moscow
Russian Journal of Nematology 14 (2), 179-184
Abstract: During surveys in 2003-2004 conducted in glasshouses in the Main Botanicat Garden of the Russian Academy of Sciences several fern plants infected by the strawberry crimp nematode, Aphelenchoides fragariae, were found. The infected ferns belong to the following species: Aneimia rotundifolia, Blechnum occidentale, B. gibbum, Pteris longifolia, P. cretica cv. wimsetti, P. cretica and Stenochlaena tenuifolia. Nematode infection produced water-soaked bands that become dark brown to black, usually between the leaf veins. Several plants of Sambucus racemosa attacked by the chrysanthemum foliar nematode A. ritzemabosi were found in an outdoor area near the glasshouses. Nematodes were extracted from the leaves and growing points of S. racemosa. Morphological and morphometrical diagnostic characters and descriptions are given for A. fragariae and A. ritzemabosi. Differences in the 18S rRNA gene sequences allow a clear separation of these species from each other and from other Aphelenchoides species. The phylogenetic relationships of these species with other aphelenchids as inferred from analysis of the 18S-rRNA gene are presented and discussed.
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Research topic(s) for pests/diseases/weeds:
surveys/sampling/distribution
identification/taxonomy

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Aphelenchoides fragariae		Russia (Eur.)
	Aphelenchoides ritzemabosi		Russia (Eur.)