Devibursaphelenchus alienae

Female:

Monodelphic, prodelphic,
Ovary, oviduct, spermatheca, crustaformeria, uterus, vagina/vulva and post-vulval uterine sac (PUS) present, sometimes filled with sperm.
Spermatheca roundish rectangular or oval-shaped, composed by small rounded cells, in-line with gonad, containing mature sperm.
Crustaformeria with four rows of four relatively large and rounded cells,
Uterus with thick wall
Vulva lwithout flap.
Vagina inclined anteriorly, surrounded by sclerotised or cuticular tissue appearing as a fractal square in lateral view or fractal arc in ventral view. PUS present, sometimes filled with s
Anus present, but seemingly not functional)
Tail elongate conoid, smoothly tapering, strongly ventrally recurved with bluntly pointed to narrowly rounded terminus.

Male:

Monorchic, testis outstretched on right subventral side of intestine.
Spermatocytes arranged in multiple (2- 3) rows in anterior two-thirds of gonad, well-developed small amoeboid sperm tightly packed in posterior part of testis.
Vas deferens of large flattened cells occupying posterior ca one-sixth of total gonad.
Spicules paired, separated, capitulum well developed; triangular rostrum with blunt tip, spicule blade relatively wide, strongly and smoothly ventrally curved and tapering to distal tip,
Gubernaculum or apophysis absent.
Tail conical.
Terminal bursal flap present.
Two pairs of papilliform subventral genital papillae present, anterior pair (P2) precloacal, (P3) slightly anterior to beginning of bursal flap.

Ref: Kanzaki et al., 2022

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

Distribution:

Economic Importance:

Feeding:

Devibursaphelenchus alienae was successfully cultured on live nematodes (Acrobeloides sp.). The nematode was therefore considered a predator of othe nematodes and culture on fungi was not attmpted.

Predation on nematodes has been reported for sebveral other No culture on fungal species was attempted as it is considered a predator, as reported for several other Devibursaphelenchus spp. and for othe generaa in the Ektaphelenchinae subfamily of the Aphelenchoididae e.g. Seinura spp., in the same subfamily (Kanzaki et al., 2022; Gu et al., 2010; Aliramaji et al., 2014; Guo et al., 2014).

Aliramaji, F., Pourjam, E., Atighi, M.R., Karegar, A., Pedram, M. 2014. Devibursaphelenchus kheirii sp. n. (Nematoda: Ektaphelenchinae) from Iran with remarks of Devibursaphelenchus Kauliya, 1967. Nematology 16: 1069-1078.

Gu, J., Wang, J. and Zheng, J. 2010. Devibursaphelenchus wangi sp. n. (Nematoda: Ektaphelenchinae) feeding on Aphelenchoides sp. Russian Journal of Nematology 18:49-57.

Guo, K., Gu, J., Wang, J. & Hu, J. (2014). Redescription of Devibursaphelenchus hunanensis (Yin et al., 1988). (Nematoda: Ektaphelenchinae) from Pinus massoniana in China with the synonymy of D. eproctatus (Sriwati et al., 2008). Scientia Silvae Sinicae 50, 82-89. DOI: 10.11707/j.1001-7488. 20140712

Kakulia, G.A. 1967.. [New nematode genus, Devibursaphelenchus n. g. (Nematoda: Aphelenchoididae).] Soobschcheniya Akademii Nauk Gruzinskoi SSR 47, 439-443.

Kanzaki, N., Hamaguchi, K., Takeeuchi-Kaneko, Y. 2022. Devibursaphelenchus alienae n. sp. isolated from the bark of dead Quercus aliena in Japan. Nematology 24:205-224.