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首页> 外文期刊>Journal of Parasitology >Morphology and 18S rDNA of Henneguya gurlei (Myxosporea) from Ameiurus nebulosus (Siluriformes) in North Carolina.
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Morphology and 18S rDNA of Henneguya gurlei (Myxosporea) from Ameiurus nebulosus (Siluriformes) in North Carolina.

机译：北卡罗莱纳州Ameiurus nebulosus（Siluriformes）的Henneguya gurlei（Myxosporea）的形态和18S rDNA。

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Henneguya gurlei was isolated from Ameiurus nebulosus captured in North Carolina and redescribed using critical morphological features and 18S small-subunit ribosomal RNA (SSU rDNA) gene sequence. Plasmodia are white, spherical, or subspherical, occur in clusters, measure up to 1.8 mm in length, and are located on the dorsal, pectoral, and anal fins. Histologically, plasmodia are located in the dermis and subdermally, and the larger cysts disrupt the melanocyte pigment layer. The spore body is lanceolate, 18.2 +/- 0.3 microm (range 15.7-20.3) in length, and 5.4 +/- 0.1 microm (range 3.8-6.1) in width in valvular view. The caudal appendages are 41.1 +/- 1.1 microm (range 34.0-49.7) in length. Polar capsules are pyriform and of unequal size. The longer polar capsule measures 6.2 +/- 0.1 microm (range 5.48-7.06), while the shorter is 5.7 +/- 0.1 microm (range 4.8-6.4) in length. Polar capsule width is 1.2 +/- 0.03 microm (range 1.0-1.54). The total length of the spore is 60.9 +/- 1.2 microm (range 48.7-68.5). Morphologically, this species is similar to other species of Henneguya that are known to infect ictalurids. Based on SSU rDNA sequences, this species is most closely related to H. exilis and H. ictaluri, which infect Ictalurus punctatus.
机译：Henneguya gurlei分离自北卡罗来纳州捕获的星状阿米鲁斯星云，并使用关键的形态学特征和18S小亚基核糖体RNA（SSU rDNA）基因序列进行了重新描述。疟原虫呈白色，球形或亚球形，成簇出现，长可达1.8毫米，位于背鳍，胸鳍和肛门鳍上。从组织学上讲，浆原体位于真皮和皮下，较大的囊肿破坏了黑素细胞色素层。在瓣膜视图中，孢子体为披针形，长18.2 +/- 0.3微米（范围15.7-20.3），宽5.4 +/- 0.1微米（范围3.8-6.1）。尾附肢的长度为41.1 +/- 1.1微米（范围34.0-49.7）。极性胶囊为梨状，大小不等。极性较长的胶囊的长度为6.2 +/- 0.1微米（范围5.48-7.06），而较短的胶囊的长度为5.7 +/- 0.1微米（范围4.8-6.4）。极性囊的宽度为1.2 +/- 0.03微米（范围1.0-1.54）。孢子的总长度为60.9 +/- 1.2微米（范围48.7-68.5）。从形态上讲，该物种与已知会感染食tal鱼的Henneguya的其他物种相似。根据SSU rDNA序列，该物种与感染马尾冰tal的exilis H.和ictaluri密切相关。

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