Entomophilic juveniles of the nematode Bursaphelenchus mucronatus (Nematoda, Aphelenchida, Parasitaphelenchidae) obtained from the cerambycid vector Monochamus urussovi (Coleoptera, Cerambycidae) under experimental conditions
- 43 Downloads
Specialized dispersive juveniles of the nematode Bursaphelenchus mucronatus (J4d) were obtained from adults of the black fir sawyer Monochamus urussovi. Judging by the structure of their genital primordium and the primordia of copulatory organs, they correspond to the 4th stage juveniles of the propagation generation (J4), which feed as mycophages and parasites in the conifer wood tissues. The dispersive juveniles differ from those of the propagation generation in such characters as reduction of the stylet, inner cephalic framework, and parts of the pharynx (the median bulb and the pharyngeal gland lobe), a sharply conical tail, and the presence of unicellular glands at the anterior body end. Among entomophilic juveniles, the prospective males and females can be distinguished by the structure of their genital primordium and the primordia of copulatory organs.
KeywordsEntomological Review Propagation Generation Copulatory Organ Shell Gland Pinewood Nematode
Unable to display preview. Download preview PDF.
- 2.Hunt, D.J., Aphelenchida, Longidoridae and Trichodoridae. Their Systematics and Bionomics (CAB Int., Wallingford, Oxon, UK, 1993).Google Scholar
- 3.Maehara, N. and Futai, K., “Effect of Fungal Interactions on the Numbers of the Pinewood Nematode, Bursaphelenchus xylophilus (Nematoda: Aphelenchoididae), Carried by the Japanese Pine Sawyer, Monochamus alternatus (Coleoptera: Cerambycidae),” Fundam. Appl. Nematol. 20(6), 611–617 (1997).Google Scholar
- 4.Naves, P.M., Camacho, S., and Sousa, E.M.D., “Entrance and Distribution of the Pinewood Nematode Bursaphelenchus xylophilus on the Body of its Vector Monochamus galloprovincialis (Coleoptera: Cerambycidae),” Ent. Gener. 29(1), 71–80 (2006).Google Scholar
- 6.Ryss, A.Yu., “Morphogenesis of the Female Reproductive System in the Superfamily Tylenchoidea (Nematoda),” Parazitologiya, No. 15, 533–542 (1981).Google Scholar
- 7.Ryss, A.Yu., Root-Parasitic Nematodes of the Family Pratylenchidae (Tylenchida) in the World Fauna (Nauka, Leningrad, 1988) [in Russian].Google Scholar
- 8.Ryss, A., “Express Technique to Prepare Collection Slides of Nematodes,” Zoosyst. Rossica 11(2), 257–260 (2003).Google Scholar
- 9.Ryss, A.Yu. and Chernetskaya, A.Yu., “Development Circle of Bursaphelenchus mucronatus Mamyia et Enda, 1979 (Nematoda: Aphelenchida),” Parazitologiya, No. 42 (2008).Google Scholar