Discocriconemella sinensis

Discocriconemella sinensis	Contents	Rev 11/04/2019
	Classification	Hosts
	Morphology and Anatomy	Life Cycle
Return to Discocriconemella Menu	Economic Importance	Damage
	Distribution	Management
Return to Criconematidae Menu	Feeding	References
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Classification:

Tylenchida
      Tylenchina
        Criconematoidea
         Criconematidae
          Criconematinnae

Discocriconemella sinensis Maria, Cai, Subbotin & Zheng, 2019

Morphology and Anatomy:

Cuticle relatively finely annulated relative to other species in this genus and family. Annuli with posterior margins smooth,
Second lip annulus forming an uninterrupted disc, face pattern matching that of group 1 proposed for Discocriconemella species by Vovlas (1992).
Labial plate surrounded by first lip annulus and slightly elevated projections resembling rudimentary lobes.
Stylet long and robust, mostly straight. Stylet knobs indented anteriorly and rounded posteriorly.
DEGO 3.0-4.0 µm posterior to stylet base.
Esophageal lumen looped in median bulb; Isthmus narrow, short, encircled by nerve ring; Basal esophageal bulb elongated.
Excretory pore inconspicuous, situated at base of esophageall bulb.
Tail short, conoid, with a lobed terminus.

Female:

Monodelphic, prodelphic
Vulva wide open without vulval flaps although rudimentary flaps observed under SEM in a few specimens.
Vagina straight, extending for less than half of body diam.
Spermatheca rounded to oblong, filled with sperm cells.
Oviduct short, ovary . .
Anus small, indistinct located 3-4 annuli posterior to vulva.
Postvulval body elongated conoid.

Male:

Not observed in original description but note that spermatheca in females filled with sperm.

Reported median body size for this species (Length mm; width micrometers; weight micrograms) - Click:

Distribution:

Described from the rhizosphere of Camellia sinenis in Longwu tea village, Hangzhou, Zhejiang Province, China

Hosts:

For an extensive host range list for this species, click

Life Cycle:

Ecophysiological Parameters:

For Ecophysiological Parameters for this species, click	If species level data are not available, click for genus level parameters

Management:

Host Plant Resistance, Non-hosts and Crop Rotation alternatives:

For plants reported to have some level of resistance to this species, click

References:

Geraert, E. 2010. The Criconematidae of the World: Identification of the Family Criconematidae. Academia Press, Gent. 615p.

Maria, M., Cai, R., Subbotin, S.A. and Zheng, J. 2019. Description of Discocriconemella sinensis n. sp. (Nematoda: Criconematidae) from the rhizosphere of Camellia sinensis in China. Nematology 21: 779-792.

Vovlas, N. (1992). Taxonomy of Discocriconemella (Nematoda: Criconematoidea) with a redescription of D. mauritiensis. Journal of Nematology 24, 391-398.