Potato is the main material of nutrition comes after the wheat and, is subjected to attacks of different plant parasitic nematodes which cause serious damages in our country. Especially, root-knot nematodes cause seri...Potato is the main material of nutrition comes after the wheat and, is subjected to attacks of different plant parasitic nematodes which cause serious damages in our country. Especially, root-knot nematodes cause serious crop losses on them. Due to usage oflnfested seeds, parasitic nematodes are increasing from year to year. In our country, so far, many infested hosts of Meloidogyne incognita （Kofoid ＆White, 1919） Chitwood, 1949 were detected but there is no report on investigation on potato. During this study, adult females of root-knot nematodes were obtained via extracting gals of 133 tuber samples, collected potatoes fields in the Marmara region especially Balikesir, Bilecik, Bursa, Canakkale, Edirne, Istanbul, Kirklareli, Kocaeli, Sakarya and Tekirdag provinces during 2007-2008. During identification the species, second stage larvae were taken into consideration as well as genital preparations of adult females. For the identification classical methods were used together with molecular methods. As result, M. incognita was detected, only species detected among the Meloidogyne genus upon the 10 provinces investigated in Edirne province, Bosna village. This is the first report of the infestation of this species potato and also in Marmara Region.展开更多
杆垫刃属新属(Rhabdotylenchus n. gen.)以其尾粗短,尾后部透明部分呈杆状,尾端平截有一凹痕,以及第一体环明显宽于其他体环并且该环角质层显著加厚与唇和其后的体部形成缢缩而显著区别于垫刃亚科(Tylenchinae rley, 1880)的其它属,该...杆垫刃属新属(Rhabdotylenchus n. gen.)以其尾粗短,尾后部透明部分呈杆状,尾端平截有一凹痕,以及第一体环明显宽于其他体环并且该环角质层显著加厚与唇和其后的体部形成缢缩而显著区别于垫刃亚科(Tylenchinae rley, 1880)的其它属,该新属与近似属Tylenchus Bastian,1865的区别,除了独特的尾形和第一体环外,还以唇区显著缢缩,阴门位置较后(V>70vsV=60～70),明显区别于该近似属。广东杆垫刃线虫新属新种(Rhabdotylenchus guangdongensis n. gen., n. sp.)发现于广东省深圳市郊区的苦瓜根际土中。展开更多
小垫刃线虫新种(Tylenchus minor n.sp.)和拟小垫刃线虫新种(T.paraminor n.sp)分别采集于广东省宝安县的葱(Allium fistulosum)和柑(Citrus reticulata)根际土壤。两者以中食道球位置较前、排泄孔位置较后和无明显后阴子宫囊等特征区...小垫刃线虫新种(Tylenchus minor n.sp.)和拟小垫刃线虫新种(T.paraminor n.sp)分别采集于广东省宝安县的葱(Allium fistulosum)和柑(Citrus reticulata)根际土壤。两者以中食道球位置较前、排泄孔位置较后和无明显后阴子宫囊等特征区别于近似种新最小垫刃线虫(T.neominimus Savkina,Savkina,1989);以角质层有环纹和口针较长等特征区别于另一近似种微针垫刃线虫(T.stylolus Xie et Feng,1995)。2新种在体长、口针长和无明显后阴子宫囊等特征上非常近似,但后者以阴门位置较后、尾短并且小于或等于肛阴距等特征明显区别于前者。展开更多
文摘Potato is the main material of nutrition comes after the wheat and, is subjected to attacks of different plant parasitic nematodes which cause serious damages in our country. Especially, root-knot nematodes cause serious crop losses on them. Due to usage oflnfested seeds, parasitic nematodes are increasing from year to year. In our country, so far, many infested hosts of Meloidogyne incognita （Kofoid ＆White, 1919） Chitwood, 1949 were detected but there is no report on investigation on potato. During this study, adult females of root-knot nematodes were obtained via extracting gals of 133 tuber samples, collected potatoes fields in the Marmara region especially Balikesir, Bilecik, Bursa, Canakkale, Edirne, Istanbul, Kirklareli, Kocaeli, Sakarya and Tekirdag provinces during 2007-2008. During identification the species, second stage larvae were taken into consideration as well as genital preparations of adult females. For the identification classical methods were used together with molecular methods. As result, M. incognita was detected, only species detected among the Meloidogyne genus upon the 10 provinces investigated in Edirne province, Bosna village. This is the first report of the infestation of this species potato and also in Marmara Region.
文摘杆垫刃属新属(Rhabdotylenchus n. gen.)以其尾粗短,尾后部透明部分呈杆状,尾端平截有一凹痕,以及第一体环明显宽于其他体环并且该环角质层显著加厚与唇和其后的体部形成缢缩而显著区别于垫刃亚科(Tylenchinae rley, 1880)的其它属,该新属与近似属Tylenchus Bastian,1865的区别,除了独特的尾形和第一体环外,还以唇区显著缢缩,阴门位置较后(V>70vsV=60～70),明显区别于该近似属。广东杆垫刃线虫新属新种(Rhabdotylenchus guangdongensis n. gen., n. sp.)发现于广东省深圳市郊区的苦瓜根际土中。
文摘小垫刃线虫新种(Tylenchus minor n.sp.)和拟小垫刃线虫新种(T.paraminor n.sp)分别采集于广东省宝安县的葱(Allium fistulosum)和柑(Citrus reticulata)根际土壤。两者以中食道球位置较前、排泄孔位置较后和无明显后阴子宫囊等特征区别于近似种新最小垫刃线虫(T.neominimus Savkina,Savkina,1989);以角质层有环纹和口针较长等特征区别于另一近似种微针垫刃线虫(T.stylolus Xie et Feng,1995)。2新种在体长、口针长和无明显后阴子宫囊等特征上非常近似,但后者以阴门位置较后、尾短并且小于或等于肛阴距等特征明显区别于前者。
