معرفی چند گونه از جنس Aphelenchoides Fischer, 1894 از مزارع توت‌فرنگی استان گلستان

During the study of plant parasitic nematodes fauna from strawberry fields in Golestan province, five species of genus Aphelenchoides, namely Aphelenchoides aligarhiensis Siddiqi, Husain & Khan, 1967, A. bicaudatus Imamura, 1931, A. fuchsi Esmaeili, Heydari, Ziaei & Gu, 2016, A. kheirii Golhasan, Heydari, Esmaeili & Kanzaki, 2018 and A. xui Wang, Wang, Gu, Wang & Li, 2013 were identified. The two species A. aligarhiensis and A. xui are new for Iran's nematode fauna. A. aligarhiensis species by having body length of 596-779 μm, stylet length 10.5-12.5 μm, placement of the excretory pore at a level slightly anterior to nerve ring, Spermatheca oblong, packed with discoidal spermatozoa, Uterine sac lenght four times body width (more than half the vulva-anus distance), Tail elongate-conoid, tapering to a rounded terminus armed with a tetramucronate spine in females, the presence of three pairs of sexual papillae with arrangement (2 + 2 + 2) and spicule length 16-16.5 μm in males and A. xui specie with body length 866-678 μm, presence of four lines in the lateral field, stylet 12-13 μm long, Spermatheca axial, oblong and contains disc-like sperm, Tail conical, tapering to a complicated step-like projection, with many tiny nodular protuberances in females, and relatively large spicules 18 μm with apex and rostrum rounded, well developed and the end of the dorsal limb clearly curved ventrad like a hook in males, are distinguishable from similar species.