Paratylenchus schenzhenensis Wang, Xie, Li, Xu,
Yu & Wang, 2013
Small plant-parasitic nematodes, 0.3 mm long.
Females: Gravid female may
swell anterior to vulva.
Strong stylet, usually about 36 Âµm.
Reported median body size for this species (Length mm; width micrometers; weight micrograms) - Click:
This species described from Shenzhen, Guandong Province, China.
Causes a slow decline of anthurium.
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.
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.
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).
Host Plant Resistance, Non-hosts
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.