Anguina

      

Rev 12/10/2019

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Classification:

      Tylenchida
       Tylenchina
        Tylenchoidea
         Anguinidae
          Anguininae

          Anguina (Maggenti, Hart & Paxman, 1973) Brzeski, 1981

    Synonyms:

Genus established as Cynipanguina in the descriptioon of Cynipanguina danthoniae by Maggenti, Hart and Paxman (1973) and synonymized with Anguina by Brzeski, 1981. Siddiqi (1986) considered Cynipanguina indistinguishable from Subanguina and synonymized it with that genus although the finger-like extension of the esophageal glandular region appears to be a distinctive feature.  Fortuner and Maggenti (1987) re-established Cynipanguina but Andrassy (2007) lists it as a synonym of Subanguina.

However, Cid del; Prado Vera et al (2018) accept the transfer of Cynipnguina to Anguina by Brzeski, 1981.

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Morphology and Anatomy:

Body stout, coiled in female, a = 12.1-16.2; body crescentic in male, a = 16.2-21.4.

Stoma armed with slender stylet.

Metacorpus ovate with small but distinct valve.

Isthmus separated from the glandular bulb by a constriction;  intestine overlapping the end of the glandular bulb that forms a stem- like extension.  

Lateral field contains longitudinal, transverse and oblique striae.

Oocytes arranged around a rachis, post-uterine sac present.

    Oocytes in one/two rows;  columned uterus with four long rows of cells (about 14 cells per row). 

    Mature females swollen.  

    Testis without flexures, caudal alae leptoderan.              

      [Ref: Fortuner and Maggenti, Rev. Nematol. 10(2):163-176 (1987)., Maggenti et al., 1973.]


Drawings from Maggenti et al., 1973.

Body size range for the species of this genus in the database - Click:


           

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Distribution:

 

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Economic Importance:

 

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Feeding:

Above-ground parasites of higher plants. The adults are the cryptobiotic stage instead of one of the juvenile stages as in other anguinids.

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Hosts:

For an extensive host range list for this genus, click
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Life Cycle:

For Ecophysiological Parameters for this genus, click 
 
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Damage:

Anguina danthoniae galls

Galls stimulated by Anguina danthoniae on California Oatgrass (Danthonia californica Boland)

Photograph by Ignacio Cid del Prado Vera

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Management:

 

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References

Andrássy, I. 2007. Free-living Nematodes of Hungary (Nematoda Errantia)  Vol. II.  Hungarian Natural History Museum. Budapest. Hungary, 496 pp.

Brzeski, M.W. 1981. The genera of Anguinidae (Nematoda, Tylenchida). Revue de Nematologie 4: 23-34.

Cid del Prado Vera, I., Chizhov, V.N., Subbotin, S.A. 2018. Molecular characterisation of gall-forming nematodes, Mesoanguina amsinckiae and Anguina danthoniae (Anguinidae: Tylenchida) from California, USA . Russian Journal of Nematology 26:109-113.

Fortuner, R. and Maggenti, A.R. 1987. A reappraisal of Tylenchina (Nemata). 4. The family Anguinidae Nicoll, 1935 (1926). Revue Nernatol. 10: 163-176.

Maggenti, A.R.; Hart, W.H.; Paxman, G.A. 1973. A new genus and species of gall forming nematode from Danthonia californica, with a discussion of its life history. Nematologica 19: 491-497.

Siddiqi, M. R. (1986). Tylenchida parasites of plants and insects. Commonwealth Agricultural Bureaux, U.K. 645 p.

 

 
Copyright © 1999 by Howard Ferris.
Revised: December 10, 2019.