Rev 01/11/2021

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          Zeatylenchus Zhao, Davies, Alexander & Riley, 2013

The genus name does not imply an affiliation with plants of the genus Zea but rather to the country of the type locality, New Zealannd.


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Morphology and Anatomy:


  • Slender nematodes without sexual dimorphism.
  • Fine cuticular striation.
  • Head offset and narrower than body.
  • Stylet short, 7-10 µm with small, rounded knobs.
  • Esophageal bulb not muscular and with small valve.
  • Dorsal esophageal glands abutting to slightly overlapping intestine; subventral glands overlapping intestine ventrally.
  • Excretory pore anterior, at level of stylet knobs.
  • Female gonad monovarial, prodelphic with postuterine sac.
  • Male with slender spicules, simple gubernaculum and bursa extending from about 1 cloacal body diameter anterior to cloaca to a similar distance posterior.
  • Tail conoid with short pointed terminus.

(Zhao et al., 2013)

Body size range for the species of this genus in the database - Click:
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Recovered from the leaves of Pittosporum tenuifolium fron the North Island of New Zealand.  Nematodes did not form galls in the leaves (Zhao et al., 2013).

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Economic Importance:


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 Feeding endoparasitically in the mesophyll of leaves without forming galls.    

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

Has only been recovered from leaf tissue and has not been found in soil under the host plant.

For Ecophysiological Parameters for this genus, click 
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Non-specific brown ot yellow chlorotic spots on the leves of Pittosporum (Zhao et al., 2013).

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Zhao, Z.Q., Davies, K.A., Alexander, B.J.R., Riley, I.T. 2013. Zeatylenchus pittosporum gen. n. , sp. n. (Tylenchida: Anguinata), from leaves of Pittosporum tenuifolium (Pittosporaceae) in New Zealand. Nematology 15:197-212.

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Copyright © 1999 by Howard Ferris.
Revised: January 11, 2021.