Zeatylenchus pittosporum




Rev 07/25/2022

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        Zeatylenchus pittosporum Zhao, Davies, Alexander & Riley, 2013

As of 2017, Z. pittosporum is the type and only species of the genus.

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)




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

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Life Cycle:

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

Ecophysiological Parameters:

For Ecophysiological Parameters for this species, click If species level data are not available, click for genus level parameters
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Non-specific brown ot yellow chlorotic spots on the leves of Pittosporum (Zhao et al., 2013).

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

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


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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: July 25, 2022.