An undescribed species of steinernema (Rhabditida: Steinernematidae) from chumomray national park (Vietnam)
Main Article Content
Abstract
An undescribed species of Steinernema (Rhabditida:
Steinernematidae) was isolated from forest soil of the Chumomray National park
(Kontum prov.. Sa Thay distr., Sa Son municipality) Vietnam. Morphological and
morphometrical studies revealed that this species clearly differs from other
known Steinernema species. It has very large spicule as well as in s.
in te rm e d ium but can be separated by the longer IJ tail length, lower ratio E%,
shorter spicule, shape of spicule, the number of genital papillae at caudal region
and the presence of mucro in male. Its lateral fields resemble the ones of s. sangi
but can be sepa ra ted by higher E% and D%, larger and shor ter spicule, the
morphology of spicule head (manubrium) and dorsal lobe of spicule.
Morphometries of IJs of this species are closed to s. monticolum but differ by the
position of excretory pore, shorter and larger spicule and the morphology of
spicule head.
Steinernematidae) was isolated from forest soil of the Chumomray National park
(Kontum prov.. Sa Thay distr., Sa Son municipality) Vietnam. Morphological and
morphometrical studies revealed that this species clearly differs from other
known Steinernema species. It has very large spicule as well as in s.
in te rm e d ium but can be separated by the longer IJ tail length, lower ratio E%,
shorter spicule, shape of spicule, the number of genital papillae at caudal region
and the presence of mucro in male. Its lateral fields resemble the ones of s. sangi
but can be sepa ra ted by higher E% and D%, larger and shor ter spicule, the
morphology of spicule head (manubrium) and dorsal lobe of spicule.
Morphometries of IJs of this species are closed to s. monticolum but differ by the
position of excretory pore, shorter and larger spicule and the morphology of
spicule head.
References
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14. Reid, A.P., Hominick, W.M. & Briscoe, B.R. Molecular taxonomy and phylogeny of entomopathogenic nematode species (Rhabditida: Steinernematidae) by RFLP analysis of the ITS region of the ribosomal DNA repeat unit. Systematic Parasitology 37 (1997), pp 187-193.
15. Roland, N.p & John, T.J. The use of molecular biology techniques in Plant Nematology: Past, present and future. Russian Journal of Nematology 6 (1998), pp 47-56.
16. Spiridonov, S.E., Hominick, W.M. & Briscoe, B.R. Morphology of amoeboid cells in the uterus of Steinernema species (Rhabditida: Steinernematidae). Russian Journal of Nematology 7 (1999), pp 49-56.
17. Stock, S.P., Choo, H.Y. & Kaya, H.K. Steinernema monticolum sp. n. (Rhabditida: Steinernematidae), an entomopathogenic nematode from Korea with a key to other species. Nematologica 43 (1997), pp 15-29.
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2. Hominick, W.M., Reid, A.p., Bohan, D.A. & Briscoe, B.R. Entomopathogenic nematodes: biodiversity, geographical distribution and the Convention on Biological Diversity. Biocontrol Science and Technology 6 (1996), pp 317-331.
3. Hominick, W.M., Briscoe, B.R., Del-Pino, F.G., Heng, J., Hunt, D.J., Kozodoy, E., Mracek, z., Nguyen, K.B., Reid, A.p., Spiridonov, s., Stock, p., Sturhan, D., Waturu, c. & Yoshida, M. Biosystematics of entomopathogenic nematodes: current status, protocols and definitions. Journal of Helminthology 71 (1997), pp 271-298.
4. Jackson, G.J. Differentiation of three species of Neoplectana (Nematoda: Rhabditida)grown axenically. Parasitology 55 (1965), pp 571-578.
5. Miduturi, J.S., Matata, Waeyenberge, L. & Moens, M. Naturally occurring
entomopathogenic nematodes in the province of East Flanders, Belgium. Nernatologia Mediterranea 24 (1996), pp 287-293.
6. Nguyen, K.B. & Smart, G.c. Scanning electron microscope studies of spicules and gubernacula of Steinernema spp. (Nemata: Steinernematidae). Nematologica 43 (1997), pp 465-480.
7. Pham, V.L., Nguyen, K.B., Reid, A.P., Spiridonov S.E. & Sturhan, D. Steinernema tami sp. n. (Rhabditida: Steinernematidae) from Cat Tien forest, Vietnam. Russian Journal of Nematology 8 (2000), pp 33-43.
8. Phan, K.L., Nguyen, N.c. & Moens, M. Steinernema sangi sp. n. (Rhabditida:
Steinernematidae) from Vietnam. Russian Journal of Nematology 9 (2001a), pp 1-7.
9. Phan, K.L., Nguyen, N.c. & Moens, M. Steinernema loci sp. n. and Steinernema thanhi sp. n. (Rhabditida: Steinernematidae) from Vietnam. Nematology 3 (2001b), pp 503-514.
10. Phan, K.L., Subbotin, s.A., Nguyen N.c. & Moens, M. Heterorhabditis baujardi sp. n. (Rhabditida: Heterorhabditidae) from Vietnam with orphometric data for H. indica populations. Nematology (2003a), pp 367-382.
11. Phan, K.L., Nguyen, N.c. & Moens, M. Natural distribution of entomopathogenic nematodes (Rhabditida: Steinernema and eterorhabditis) in Vietnam. Proceedings of the 2nd National conference in life science. Science & Technics Publishing House, Hanoi.
2003b, pp 670-673.
12. Poinar, G.o. and Kozodoi, E. M. NeoapLectana glaseri and N. anomali: sibling species or parallelism. Revue de Nematologie 11 (1988), pp 13-19.
13. Poinar, G. o., Jr. Neoaplectana intermedia n. sp. (Steinernematidae: Nematoda) from South Carolina. Revue de Nematologie 8 (1985), pp 321-327.
14. Reid, A.P., Hominick, W.M. & Briscoe, B.R. Molecular taxonomy and phylogeny of entomopathogenic nematode species (Rhabditida: Steinernematidae) by RFLP analysis of the ITS region of the ribosomal DNA repeat unit. Systematic Parasitology 37 (1997), pp 187-193.
15. Roland, N.p & John, T.J. The use of molecular biology techniques in Plant Nematology: Past, present and future. Russian Journal of Nematology 6 (1998), pp 47-56.
16. Spiridonov, S.E., Hominick, W.M. & Briscoe, B.R. Morphology of amoeboid cells in the uterus of Steinernema species (Rhabditida: Steinernematidae). Russian Journal of Nematology 7 (1999), pp 49-56.
17. Stock, S.P., Choo, H.Y. & Kaya, H.K. Steinernema monticolum sp. n. (Rhabditida: Steinernematidae), an entomopathogenic nematode from Korea with a key to other species. Nematologica 43 (1997), pp 15-29.
18. Stock, S.P., Campbell, J.F. & Nadler, S.A. Phylogeny of Steinernema Travassos, 1927 (Cephalobina: Steinernematidae) inferred from ribosomal DNA sequences and morphological characters, Journal of Parasitology 87 (2001), pp 877-889.