Skip to main content Skip to main navigation menu Skip to site footer
Responsive image
Issue: Vol. 3437 No. 1: 24 Aug. 2012
Type: Articles
Published: 2012-08-24
DOI: 10.11646/zootaxa.3437.1.3
Page range: 32–42
Abstract views: 68
PDF downloaded: 1

Review of the genus Scutylenchus Jairajpuri, 1971 (Nematoda: Tylenchida), with description of Scutylenchus dongtingensis n. sp. from rhizosphere soil of grass in China

Laboratory of Plant Nematology, Department of Plant Pathology/Research Center of Nematodes of Plant Quarantine, College of Nature Resources and Environment, South China Agricultural University, Guangzhou 510642, China
Laboratory of Plant Nematology, Department of Plant Pathology/Research Center of Nematodes of Plant Quarantine, College of Nature Resources and Environment, South China Agricultural University, Guangzhou 510642, China
Laboratory of Plant Nematology, Department of Plant Pathology/Research Center of Nematodes of Plant Quarantine, College of Nature Resources and Environment, South China Agricultural University, Guangzhou 510642, China
Hunan Institute of Plant Protection, Changsha 410125, China
Laboratory of Plant Nematology, Department of Plant Pathology/Research Center of Nematodes of Plant Quarantine, College of Nature Resources and Environment, South China Agricultural University, Guangzhou 510642, China
Nematoda new species morphological characteristics taxonomy ITS plant nematodes grass

Abstract

The genus Scutylenchus Jairajpuri 1971 (Nematoda: Tylenchida) is reviewed, and a compendium of the most importantdiagnostic characters with a key to the species are given. A new species, Scutylenchus dongtingensis n. sp., is describedfrom China, extracted from rhizosphere soil around grass near Dongting Lake in Hunan province. The new species ischaracterized by having body cuticle with 16–20 longitudinal striae forming blocks; lateral field with 6 incisures forming5 bands without areolation or any other decoration; a slightly offset head with 7 striae; slender stylet 22–25μm long, withcone about three fifths of stylet length; excretory pore inconspicuous under light microscope, located in region of anteriorpart of gland bulb in lateral view; female vulva slit transverse with small epiptygma in lateral view; conspicuous dot-likephasmid located at about one third of tail length posterior to anus; female tail subcylindrical, terminus round, annulated,terminal cuticle thickened; spicule slender, well developed, 27–32μm long, usually not protruded from cloaca;gubernaculum crescent-shaped, may be protruded from cloaca; bursa conspicuous, extending over tail terminus in ventral view.

References

  1. Anderson, R.V. (1977) Additional diagnostic characters and relationships of Merlinius laminatus (Wu, 1969) Siddiqi, 1970 (Nematoda: Merlininae). Canadian Journal of Zoology, 55, 1923–1926.

    Afshar, F. J., Pourjam, E. & Kheiri, A. (2006) Tylenchs associated with Jiroft orchards and a description of four newly found species of the nematode fauna of Iran. Iranian Journal of Agricultural Sciences, 37, 529–543.

    Brzeski, M.W. (1991) Taxonomy of Geocenamus Thorne & Malek, 1968 (Nematoda: Belonolaimidae). Nematologica, 37, 125–173.

    Brzeski, M.W. (1998) Nematodes of Tylenchida in Poland and temperate Europe. Muzeum i Instytutu Zoollogii Polska Akademia Nauk, Warsaw, Poland, 397 pp.

    Brown, G.L. (1956) Tylenchorhynchus lenorus n. sp. (Nematoda: Tylenchida), associated with the roots of wheat. Proceedings of the Helminthological Society, 23, 152–153.

    Choi, Y.E. & Geraert, E. (1971) Two new species of Tylenchida from Korea with a list of other nematodes new for this country. Nematologica, 17, 93–106.

    Choi, Y.E. & Geraert, E. (1993) Nematodes associated with forest trees in Korea. II: Three new and one described species of Geocenamus with a note on the en face view in the genus. Nematologica, 39, 431–449.

    Chitambar, J.J. & Ferris, H. (2005) Geocenamus angelescresti n. sp., a diagnostic key and compendium to the species of the genus Geocenamus Thorne & Malek, 1968 (Nematoda: Belonolaimidae). Journal of Nematology, 37, 429–437.

    Cobb, N.A. (1913) New nematode genera found inhabiting fresh water and non-brackish soils. Journal of the Washington Academy of Sciences, 3, 432–444.

    De Guiran, G. (1967) Description de deux espèces nouvelles du genre Tylenchorhynchus Cobb, 1913 (Nematoda:Tylenchinae) accompagnée d'une clé des femelles, et précisions sur T. mamillatus Tobar-Jiménez, 1966. Nematologica, 13, 217–230.

    Doucet, D.E. & Luc, M. (1981) Description de Nagelus alpensis n. sp. et observations sur Scutylenchus tessellatus et S. quadrifer (Nematoda: Tylenchida). Revue of Nématology, 4, 47–58.

    Eroshenko, A.S. & Volkova, T.V. (1987) The nematodes Geocenamus patternus n. sp. and Pathotylenchus nurserus n. g., n. sp. from the rhizosphere of conifers in the Far East. Parazitologiya, 21, 595–598

    Ferris, V.R., Ferris, J.M. & Faghihi, J. (1993) Variation in spacer ribosomal DNA in some cyst–forming species of plant parasitic nematodes. Fundamental and Applied Nematology, 16, 177–184

    Fortuner, R. & Luc, M. (1987) A reappraisal of Tylenchina (Nemata). 6. The family Belonolaimidae Whitehead, 1960. Revue of Nématology, 10, 183–202.

    Handoo, Z.A., Khan, A. & Islam, S. (2007) A key and diagnostic compendium to the species of the genus Merlinius Siddiqi, 1970 (Nematoda: Tylenchida) with description of Merlinius khuzdarensis n. sp. associated with date palm. Nematology, 9, 251–260.

    Hashim, Z. (1980) Description of the male and observations on the female of Merlinius rugosus (Siddiqi, 1963) Siddiqi, 1970 (Nematoda: Tylenchida) from Jordan. Revue of Nématology, 3, 145–148.

    Ivanova, T.S. (1982) New nematode species of the subfamily Merliniinae Siddiqi, 1970. Izvestiya Akademii Nauk Tadzhikskoi SSR, Biologicheskie Nauki, 86, 21–25.

    Ivanova, T.S. & Shagalina, L.M. (1983) A new genus and species of nematode Hexadorus deserticola gen. n., sp. n. (Tylenchida, Belonolaiminae) in the deserts of Central Asia. Parazitologiya, 17, 318–321.

    Jairajpuri, M.S. (1971) On Scutylenchus mamillatus Tobar-Jimenez, 1966 n. comb. (Abstract) National Academy of Science, India, 40th Session, p. 18.

    Jairajpuri, M.S. & Baqri, Q.H. (1968) Tylenchorhynchus hexincisus n. sp. and Telotylenchus historicus n. sp. (Tylenchida) from India. Nematologia, 14, 217–222.

    Khan, H.A. Huma, S. & Musarrat, A. (2004) A new species of Tylenchorhynchus with comments on Geocenamus rugosus (Thorne and Malek 1968) Brezeski 1991 from Sindh. Pakistan Journal of Scientific and Industrial Research, 47, 446-450.

    Maqbool, M.A. (1980) Description of Quinisulcius solani n. sp. (Nematoda: Tylenchorhynchidae) with a key to the species and data on Scutylenchu koreanus from Pakistan. Journal of Nematology, 14, 221–225.

    Maqbool, M.A., Ghazala, P. & Fatima, N. (1985) Pararotylenchus microstylus n. sp. and Scutylenchus baluchiensis n. sp. with observations on some new records from Pakistan. Pakistan Journal of Nematology, 3, 61–67.

    Mulk, M.M. (1978) On the validity of Merlinius ruguosus (Siddiqi, 1963) Siddiqi, 1970 and the description of M. siddiqii n.sp.. Mededelingen Faculterit Landbouww Rijksuniv Gent, 43, 795–801.

    Mukhina, T.I. (1970) A new species of the genus Tylenchorhynchus Cobb, 1913 (Nematoda: Tylenchoidea). Parasitologiya, 4, 342–344.

    Ni, X.M. & Liu, W.Z. (2004) The description of new recorded species of nematode，Scutylenchus myungsugae，in China. Journal of Laiyang Agricultural College, 21, 88–90.

    Ni, X.M. & Liu, W.Z. (2006) Species of nematodes of Telotylenchidae in Shandong province. Journal ofLaiyang Agricultural College (Natural Science), 23, 93–95.

    Peng, D.L. & Hunt, D.J. (1995) Scutylenchus brevicaudatus sp. nov. from China and Scutellonema paludosum sp. nov. (Nematoda:Tylenchida) from the Falkland Island. Afro-Asian Journal of Nematology, 5, 55–60.

    Seinhorst, J.W. (1959) A rapid method for the transfer of nematodes from fixative to anhydrous glycerin. Nematologica, 4, 67–69.

    Siddiqi, M.R. (1970) On the plant-parasitic nematode genera Merlinius gen. n. and Tylenchorhynchus Cobb and the classification of the families Dolichodoridae and Belonolaimidae n. rank. Proceedings of the Helminthological Society of Washington, 37, 68–77.

    Siddiqi, M.R. (1979) Taxonomy of the plant nematode subfamily Merliniinae Siddiqi, 1970, with descriptions of Merlinius processus n. sp., M. loofi n. sp. and Amplimerlinius globigerus n. sp. from Europe. Systematic Parasitology, 1, 43–60.

    Siddiqi, M.R. (2000) Tylenchida parasites of plants and insects, 2nd edition. Wallingford, UK, CABI Publishing, pp. 485–495.

    Skwiercz, A.T. (1984) Two new species of the genus Scutylenchus Jairajpuri, 1971 (Tylenchoidea: Nematoda) from Poland with a key to the species. Revue of Nématology, 7, 87–93.

    Sturhan, D. (1981) Studies on Geocenamus species from Germany (Nematoda, Dolichodoridae). Nematologica, 27, 306–314.

    Tarjan, A.C. (1973) A synopsis of the genera and species in the Tylenchorhynchinae (Tylenchoidea, Nematoda). Proceedings of the Helminthological Society, 40, 123–144.

    Thorne, G. & Malek, R.B. (1968) Nematodes of the Northern Great Plains. Part 1. Tylenchida (Nemata: Secernentea). South Dakota State University Agricultural Experiment Station Technical Bulletin, 31, 111.

    Vovlas, N. & Esser, R.P. (1990) Merlinius paniculoides n. sp. from Italy (Tylenchina: Belonolaimidae). Journal of Nematology, 22, 79–85.

    Vrain, T.C., Wakarchuk, D.A., Levesque, A.C. & Hamilton, R.I. (1992) Intraspecific rDNA restriction fragment length polymorphism in the Xiphinema americanum group. Fundamental and Applied Nematology, 15, 563–573.

    Wu, L.Y. (1969) Three new species of the genus Tylenchorhynchus Cobb, 1913 (Tylenchidae: Nematoda) from Canada. Canadian Journal of Zoology, 47, 563–567.

    Xie, H. (2005) Taxonomy of plant nematodes, 2nd edition. Beijing, P.R. China, Higher Education Press, pp. 38–51.

    Yin, Y.Q., Gao, X.B. & Feng, Z.X. (1994). Three new records of plant nematodes in China. Journal of South China Agricultural University, 15, 23–25.