Steinernema weiseri n. sp. (Rhabditida, Steinernematidae), a new entomopathogenic nematode from Europe
Steinernema weiseri n. sp. (Rhabditida, Steinernematidae), a new entomopathogenic nematode from Europe
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斯氏线虫 n.
DOI：
10.1023/a:1025531302519
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发表时间：
2003
影响因子：
1.3
通讯作者：
A. Reid
中科院分区：
文献类型：
--
作者：
Z. Mrácek;D. Sturhan;A. Reid
斯泰纳内马·韦瑟林。SP.被描述在捷克共和国塞斯凯·布德约维耶附近长着苹果树的路边。该种在德国和斯洛伐克也广泛分布，此前在那里被报告为Steinenemaspec。F.The BritishSteinenemasp。D_1与威瑟林为同种。SP.新种雄性的主要特征是淡棕色，稍弯曲的毛刺，具长柄，在第二代出现短尾粘液。第三阶段感染幼体的特征是身体和尾长中等大小，尾部较短的透明部分(大多约为尾长的1/3)，排泄孔位于咽中区，唇区略有偏移，呈棱角状和扁平状，侧野有9条相等发育的线，由8个不同的脊隔开。SP.与未与之杂交的猫科昆虫最为相似。对rDNA重复序列ITS区的RFLP分析表明，S.weiserin。SP.有别于其他50个斯氏杆菌种和分离物。新物种在广泛的栖息地被发现，并很容易在Galleria mellonalarvae上保存下来。
Steinernema weiserin. sp. is described from a roadside with apple trees near Ceské Budejovice, Czech Republic. The species is also widely distributed in Germany and Slovakia, from where it had previously been reported asSteinernemaspec. F. The BritishSteinernemasp. D1 is considered conspecific withS. weiserin. sp. Males of the new species are mainly characterised by light brown, slightly curved spicules with a long manubrium and the presence of a short tail mucron in the second generation. Third-stage infective juveniles are characterised by a `medium size' body and tail length, short hyaline tail portion (mostly around 1/3 of tail length), the excretory pore situated in the mid-pharynx region, lip region slightly offset, angular and flattened, and the lateral field having nine equally developed lines separated by eight distinct ridges.S. weiserin. sp. is most similar toS. feltiae, with which it did not hybridise. RFLP analysis of the ITS region of the rDNA repeat showsS. weiserin. sp. to be distinct from 50 otherSteinernemaspecies and isolates. The new species was found in a wide range of habitats and is readily maintained onGalleria mellonellalarvae.