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首页> 外文期刊>Journal of Invertebrate Pathology >Steinernema cholashanense n. sp. (Rhabditida, Steinernematidae) a new species of entomopathogenic nematode from the province of Sichuan, Chola Shan Mountains, China.
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Steinernema cholashanense n. sp. (Rhabditida, Steinernematidae) a new species of entomopathogenic nematode from the province of Sichuan, Chola Shan Mountains, China.

机译：Steinernema cholashanense n。 sp。 （Rhabditida，Steinernematidae）是一种新的昆虫病原线虫，来自中国四川省Chola Shan Mountains的四川省。

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During a random survey of entomopathogenic nematodes in the provinces of Sichuan and Gansu (eastern Tibet) in 2004, soil samples from several sites were collected and tested for the incidence of entomopathogenic nematodes. A new species was collected in this survey and it is described herein as Steinernema cholashanense n. sp. Steinernema cholashanense n. sp. is characterized by morphology and morphometry of the IJ and male. For the IJ, the new species can be recognized by the average body length 843 microm, esophagus length 125 microm, H%=39% and E%=81%. The lateral field pattern is 2, 5, 7, 4, 2. The male of the first generation is characterized by spicule shape and length and especially with prominent velum and the presence of a mucron on both generations. The average body length of the IJ of S. cholashanense n. sp. (843 microm) is shorter than that of S. oregonense (980 microm), S. kraussei (951 microm) and S. litorale (909 microm), similar to that of S. feltiae (849 microm), but longer than that of S. weiseri (740 microm), S. jollietti (711 microm) and S. hebeiense (658 microm). Esophagus length of the new species (125 microm) is closer to that of S. jollieti (123 microm) but longer than that of S. weiseri (113 microm) and shorter than that of S. oregonense (132 microm), S. kraussei (134 microm) and S. feltiae (136 microm). E% of the new species (81) is similar to that of S. kraussei (80), but smaller than that of S. jollieti (88), S. weiseri (95), S. oregonense (100) and S. feltiae (119). Spicule head length of the new species is almost the same as its width, this character is similar to that of S. kraussei but it is different from this species by its prominent velum. The new species can be recognized further by characteristics of sequences of ITS and D2D3 regions and cross hybridization with closely related species, S. feltiae, S. kraussei and S. oregonense.
机译：在2004年对四川和甘肃（西藏东部）省的昆虫致病性线虫进行随机调查期间，收集了多个地点的土壤样品并测试了昆虫致病性线虫的发生率。在该调查中收集了一个新物种，在此将其描述为Steinernema cholashanense n。 sp。 Steinernema cholashanense n。 sp。其特征在于IJ和雄性的形态和形态。对于IJ，可以通过平均体长843微米，食管长125微米，H％= 39％和E％= 81％识别新物种。横向场模式是2、5、7、4、2。第一代雄性的特征是针尖的形状和长度，特别是在两个世代中都有明显的绒毛和粘胶。 S. cholashanense I.的平均体长。 sp。 （843微米）比S. oregonense（980微米），S。kraussei（951微米）和S. litorale（909微米）短，与S. feeliae（849微米）相似，但比魏氏链球菌（740微米），朱利埃蒂链球菌（711微米）和河北链球菌（658微米）。新物种的食管长度（125微米）更接近朱利链球菌（123微米），但比魏瑟氏链球菌（113微米）更长，而比牛至链球菌（132微米）短。 （134微米）和毡状链球菌（136微米）。新物种的E％（81）与克劳斯链霉菌（S. kraussei）（80）相似，但比链球菌S. jollieti（88），魏氏链球菌（S. weiseri）（95），牛至链球菌（S. oregonense）（100）和毡状葡萄球菌（S. （119）。新物种的刺头长度与其宽度几乎相同，此特征与克雷伯氏菌相似，但其突出的外皮与该物种有所不同。可以通过ITS和D2D3区序列的特征以及与紧密相关的物种S. feeliae，S。kraussei和S. oregonense的交叉杂交来进一步识别新物种。

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