Rev 12/16/2024
Chromadorea Rhabditida
Tylenchina Tyl;enchuloidea Tylenchulidae Paratylenchinae
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 µm.
Ovary single, outstretched.
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.
Anthurium
Ecophysiological 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.
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).
Resistance
Host Plant Resistance, Non-hosts and Crop Rotation alternatives:
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.