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Bursaphelenchus tokyoensis n. sp. (Nematoda: Parasitaphelenchinae) isolated from dead wood of the Japanese red pine, Pinus densiflora Sieb. & Zucc., in Japan

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For more content, see Nematologica.

Bursaphelenchus tokyoensis n. sp. is described and figured from a dead Japanese red pine, Pinus densiflora. Despite several attempts, the new species was not successfully cultured and so individuals isolated from the original dead log were used as type specimens. The new species has a body length of ca 710 μm (male) and 770 μm (female), medium values of ratio a (ca 32-38 for males and ca 29-41 for females), b ratio of ca 10-12 (male) and 11-14 (female), c ratio of ca 24-29 (male) and 30-41 (female), c′ ratio of ca 2.3 (male) and ca 2.0 (female), ca 11-14 μm long stylet, four lines in the lateral field, relatively small (ca 14-16 μm), smoothly arcuate spicule lacking clear condylus, rostrum and cucullus, seven male caudal papillae and short and broad female tail with variable-shaped terminus. The new species is typologically close to B. idius but can be distinguished by male caudal papillae arrangement, female tail length and number of lateral lines. Inferred trees based upon molecular phylogenetic analysis of near full length (ca 1.6 kb) small subunit and ca 0.7 kb of the D2/D3 expansion segment of the large subunit of ribosomal DNA placed B. tokyoensis n. sp. closest to the xylophilus- and africanus-groups. However, the new species is distinguished from members of these groups by its characteristic spicule morphology and relative molecular phylogenetic placement.

Affiliations: 1: Forest Pathology Laboratory, Forestry and Forest Products Research Institute, 1 Matsunosato, Tsukuba, Ibaraki 305-8687, Japan; Fort Lauderdale Research and Education Center, University of Florida/IFA, 3205 College Avenue, Davie, FL 33314, USA; Tohoku Research Center, Forestry and Forest Products Research Institute, 92-25 Nabeyashiki, Shimo-Kuriyagawa, Morioka, Iwate 020-0123, Japan; 2: Forest Pathology Laboratory, Forestry and Forest Products Research Institute, 1 Matsunosato, Tsukuba, Ibaraki 305-8687, Japan; 3: Fort Lauderdale Research and Education Center, University of Florida/IFA, 3205 College Avenue, Davie, FL 33314, USA

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/content/journals/10.1163/156854109x429510
2009-03-01
2016-12-08

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