Skip to main content Skip to main navigation menu Skip to site footer
Responsive image
Issue: Vol. 4638 No. 4: 18 Jul. 2019
Type: Article
Published: 2019-07-18
DOI: 10.11646/zootaxa.4638.4.6
Page range: 562–570
Abstract views: 72
PDF downloaded: 1

Description of Malenchus gilanensis n. sp. from Iran

Department of Plant Protection, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran
Department of Plant Protection, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran
Departamento de Biología Animal, Biología Vegetal y Ecología, Universidad de Jaén, Avenida de Ben Saprut s/n, 23071, Jaén, Spain.
Department of Plant Protection, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran
Nematoda morphology SEM Taxonomy Telomalenchus

Abstract

Malenchus gilanensis n. sp. is described and illustrated from wood samples from Iran. Morphologically, this new species is characterized by very small body size, cuticle with narrow annuli (0.8–0.9 μm wide at mid-body), lateral field with two lines, originating at the level of the median pharyngeal bulb valve, straight amphidial apertures (similar to members of the subgenus Telomalenchus), sunken vulva with large lateral flaps, prophasmids located almost level with to 9 annuli posterior to the vulva in females, and undeveloped adanal bursa which can be considered as an outgrowth of the lateral field in males. Malenchus gilanensis n. sp. resembles members of subgenus Telomalenchus due to the straight amphidial apertures, prophasmid position and large lateral flaps, but it differs by having two lines in the lateral fields. This new species is morphologically similar to five known species of the subgenus Malenchus: M. acarayensis, M. bryanti, M. parvus, M. nanellus and M. truncatus. The new species can be distinguished from them and other species in the subgenus by having straight amphidial apertures, two lines in the lateral fields, position of prophasmids, and having a very small and undeveloped bursa.

 

References

  1. Abolafia, J. (2015) A low-cost technique to manufacture a container to process meiofauna for scanning electron microscopy. Microscopy Research and Technique, 78, 771–776.

    https://doi.org/10.1002/jemt.22538

    Andrássy, I. (1954) Revision der Gattung Tylenchus Bastian, 1865. Acta Zoologica Academiae Scientiarum Hungaricae, 1, 5–42.

    Andrássy, I. (1963) Freilebende Nematoden aus Angola, I. Einige moosbewohnende Nematoden. Publicações Culturais da Companhia de Diamantes de Angola, 66, 55–80.

    Andrássy, I. (1968) Fauna Paraguayensis. 2. Nematoden aus den Galeriewäldern des Acaray-Flusses. Opuscula Zoologica Budapest, 8, 167–312.

    Andrássy, I. (1981) Genera and species of the family Tylenchidae Örley, 1880 (Nematoda). The genus Malenchus Andrássy, 1968. Acta Zoologica Academiae Scientiarum Hungaricae, 27, 1–47.

    Brzeski, M. (1988) Malenchus parvus sp. n., M. solovjovae sp. n. and observations on M. leiodermis (Nematoda, Tylenchidae). Nematologica, 34, 47–56.

    https://doi.org/10.1163/002825988X00035

    Brzeski, M.W. (1997) Descriptions of Filenchus angustatus sp. n. and F. dorsalis sp. n. and comments on the genera Ottolenchus Husain & Khan, 1967 and Paramalenchus Sumenkova, 1988 (Nematoda: Tylenchidae). Fundamental and applied Nematology, 20, 557–563.

    Brzeski, M.W. (1998) Nematodes of Tylenchina in Poland and Temperate Europe. Muzeum i Instytutu Zoologii, Polska Akademia Nauk (MiIZ PAN), Warsaw, 396 pp.

    De Grisse, A.T. (1969) Redescription ou modifications de quelques techniques utilisées dans l’étude des nematodes phytoparasitaires. Mededelingen Rijksfakulteit Landbouwwetenschappen, Gent, 34, 351–369.

    Ebsary, B.A. (1991) Catalog of the Order Tylenchida (Nematoda). Research Branch Agriculture Canada, Ottawa, 196 pp.

    Geraert, E. (2008) The Tylenchidae of the world: Identification of the family Tylenchidae (Nematoda). Academia Press, Ghent, 540 pp.

    Geraert, E. & Raski, D. (1986) Unusual Malenchus species (Nematoda: Tylenchidae). Nematologica, 32, 27–55.

    https://doi.org/10.1163/187529286X00020

    Knobloch, N.A. (1976) The genus Malenchus (Nematoda: Tylenchida) with descriptions of two species from Michigan. Journal of Nematology, 8, 53–57.

    Qing, X., Sánchez-Monge, A., Janssen, T., Couvreur, M. & Bert, W. (2016) Description of Malenchus sexlineatus n. sp., new records of three known species of Malenchus Andrássy, 1968 (Nematoda: Tylenchidae) and notes on amphidial aperture development. Nematology, 18, 155–174.

    https://doi.org/10.1163/15685411-00002951

    Siddiqi, M.R. (1979) Seven new species in a new nematode subfamily Duosulciinae (Tylenchidae), with proposals for Duosulcius gen. n., Zanenchus gen. n. and Neomalenchus gen. n. Nematologica, 25, 215–236.

    https://doi.org/10.1163/187529279X00244

    Siddiqi, M.R. (2000) Tylenchida: Parasites of Plants and Insects. 2nd Edition. CAB International, Wallingford, 848 pp.

    https://doi.org/10.1079/9780851992020.0000

    Sumenkova, N.I. (1988) Paramalenchus anthrisculus gen. et sp. n. (Nematoda, Tylenchidae) from the rhizosphere of plants in a floodland meadow. Zoologicheskii Zhurnal, 67, 1073–1076.

    Whitehead, A. & Hemming, J. (1965) A comparison of some quantitative methods of extracting small vermiform nematodes from soil. Annals of Applied Biology, 55, 25–38.

    https://doi.org/10.1111/j.1744-7348.1965.tb07864.x