Paratylenchus schenzhenensis




Rev 02/13/2023

Pin Nematode  Classification Hosts
Morphology and Anatomy Life Cycle
Return to Paratylenchus Menu Economic Importance Damage
Distribution Management
Return to Tylenchulidae Menu Feeding  References
    Go to Nemaplex Main Menu   Go to Dictionary of Terminology



           Paratylenchus schenzhenensis Wang, Xie, Li, Xu, Yu & Wang, 2013

Back to Top

Morphology and Anatomy:


Small plant-parasitic nematodes, 0.3 mm long. 


Females:  Gravid female may swell anterior to vulva.

Strong stylet, usually about 36 µm.

Ovary single, outstretched.   




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

Back to Top


This species described from Shenzhen, Guandong Province, China.

Back to Top

Economic Importance:

Causes a slow decline of anthurium.

Back to Top


This species feeds endoparasitically in the roots of anthurium with the entire body in the epidermal cells or root hairs.  Females lay eggs within epidermal cells. (Wang et al., 2016).

This species is readily cultured on carot disks.

Back to Top



For an extensive host range list for this species, click


Back to Top

Life Cycle:

Ecophysiological Parameters:

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

Although males are less abundant that females in field samples, in the presence of males females have the spermatheca filled with sperm, indicating that reproduction is primarily sexual in this species. However, when carrot disks were inoculated with singtle females, reproduction occurred in 20-30% of the culture, indicating that parthenogenesis is also possible (Wang et al., 2016).

Females, males and juvenile stages were all detected within epidermal and root hair cells.


Back to Top


In Anthurinum fields, poor growth is associated with high population levels of P. shenzhenensis. Early damage consists of yellow-brown spots at feeding sites on roots. These gradually spread to become a serious root rot associated with reduced plant growth and root mass (Wang et al., 2016).


Whole plant effects (left) and root symptoms (right) of P shenzhenensis damage to Anthurium.  Photographs from Wang et al., 2026 in Plant Disease.


Back to Top



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

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


Back to Top


Wang, K., Yu Li, Hui Xie, Wen-Jia Wu, and Chun-Ling XuPin. 2016. Nematode Slow Decline of Anthurium andraeanum, a New Disease Caused by the Pin Nematode Paratylenchus shenzhenensis. Plant Disease 100:940-945.

Back to Top

For more information about nematodes, Go to Nemaplex Main Menu.
Copyright © 1999 by Howard Ferris.
Revised: February 13, 2023.