摘要
甘薯茎线虫样本采自河北、山东和安徽省的部分甘薯产区,该线虫种鉴定为腐烂茎线虫(Ditylenchus destructor Thorne,1945)。雌虫:线虫唇架骨质化,唇区稍缢缩、有4个唇环和6个唇片;侧区有6条侧线,有网格纹。中食道球梭形、有瓣膜,食道腺通常覆盖于肠的背面达体宽1／2,个别覆盖于肠侧面和腹面;尾呈锥状,稍向腹面弯曲,末端窄圆;卵巢前端卵原细胞双行排列;阴唇略隆起,阴门裂与体轴线垂直,阴门宽度占4个体环;后阴子宫囊大,延伸至阴肛距2／3-3／4。雄虫:虫体前部与雌虫相似。泄殖腔隆起,交合伞起始于交合刺前端水平处阳后延伸达尾长3／4;交合刺朝腹向弯曲,前端膨大具指状突;引带短。
Sweet potato stem nematodes were collected from the sweet potato fields in Hebei, Shandong and Anhui provinces, China and identified as Ditylenchus destructor Thorne, 1945. Female： labial framework well sclerotized,lip region slightly set off from the body, with six lips and four annules ,lateral fields are with six incisures and areolation. Median bulb is fusiform and weak thickenings, oesophageal glands usually overlapping the intestine on the dorsal side for half to one body width, some overlapped on the lateral and the ventral side. Tail conoid, slight ventral curvatured and with a narrow rounded terminus. Oocytes arranged in a double row in the anterior part of the ovary;the vulva lips slightly elevated, vulva slit oriented at a straight angle from the body axis, vulva width occupied four annules, the post uterine sac extended about three quarters of the distance to the anus. Male： anterior region similar to female. Cloaca slightly elevated,bursa extended from opposite the anterior end of the spicules to about the three quarters the tail length;spicules curved ventrally arcuate, expanded anteriorly with finger processes; gubernaculum short.
出处
《植物病理学报》
CAS
CSCD
北大核心
2006年第1期22-27,共6页
Acta Phytopathologica Sinica
基金
国家自然科学基金资助项目(30370931)
关键词
甘薯
茎线虫
腐烂茎线虫
sweet potato
stem nematode
Ditylenchus destructor
