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宁波口岸从来自俄罗斯的杨树木质包装中截获一种伞滑刃线虫,经形态学和分子生物学研究,鉴定为杨树伞滑刃线虫。该线虫与伪伞滑刃线虫十分近似,主要鉴定特征是:阴门盖明显腹弯,近阴门盖后半部的虫体明显凹陷;雄虫交合刺近远端边缘平直,无明显凹陷,远端盘状突十分显著;雌虫尾亚圆柱形或近圆锥形,尾端多数呈多变的尾尖突状,偶尔几乎钝圆。该线虫人工培养后雌虫尾形多数介于圆柱形和圆锥形之间,这与原始文献的报道有差异。这是我国口岸首次截获该线虫。
Ningbo port intercepted a snail bugsworm from poplar wood packaging from Russia and was identified as Bursaphelenchus xylophilus by morphology and molecular biology. The nematode and fake parasitoid nematodes are very similar, the main characteristics of the appraisal are: the vulva cover obvious abdominal flexion, the latter half of the parasite cover was significantly concave; the male mating spines near the distal edge of straight, no obvious depression, far Disk-like disc is very significant; female caudal sub-cylindrical or nearly conical, caudal most of the terminal cusp-like change, and occasionally almost blunt. The nematode artificially cultured females tail mostly between cylindrical and conical, which is different from the original literature reports. This is the first time China’s port caught the nematode.