Griffin Matt J, Wise David J, Pote Linda M
Thad Cochran National Warmwater Aquaculture Center, Mississippi Agricultural and Forestry Experiment Station, Mississippi State University, Stoneville, Mississippi 38776, USA.
J Parasitol. 2009 Oct;95(5):1076-85. doi: 10.1645/GE-2012.1. Epub 2009 Mar 13.
The original description of Henneguya adiposa, a myxozoan parasitizing channel catfish Ictalurus punctatus, is supplemented with new data on spore morphology, including photomicrographs and line drawings, as well as 18S small-subunit (SSU) ribosomal DNA (rDNA) sequence. Elongate, translucent, linear plasmodia were situated between the connective tissue bands of the adipose fin. The myxospore possessed an elongate, lanceolate spore body, flattened parallel to the suture line: 17.1 +/- 1.6 microm (range 14.7-20.5) in length, 4.1 +/- 0.3 microm (range 3.4-4.6) wide in valvular view, and 3.7 +/- 0.3 microm (range 3.2-4.0) thick in sutural view. Polar capsules were pyriform and unequal in length, measuring 7.2 +/- 0.6 microm (range 5.8-8.3) long and 1.3 +/- 0.2 microm (range 0.9-1.9) wide, with at least 8 turns in the polar filament coil. The caudal appendages were 38.0 +/- 6.2 microm (range 23.2-48.8) and split posteriorly. The total length of the spore was 55.6 +/- 6.5 microm (range 40.7-65.8). Phylogenetic analysis of 18S SSU rDNA sequence data placed this isolate within the Myxobolidae, indicating a close relationship to a group of Henneguya species parasitizing channel catfish in the southeast United States.
对寄生于斑点叉尾鮰的粘孢子虫——脂肪亨内粘体虫的原始描述进行了补充，增加了孢子形态的新数据，包括显微照片和线条图，以及18S小亚基（SSU）核糖体DNA（rDNA）序列。细长、半透明的线性原质团位于脂鳍的结缔组织带之间。粘孢子虫具有细长的、披针形的孢子体，与缝线平行扁平：瓣面观长度为17.1±1.6微米（范围14.7 - 20.5），宽度为4.1±0.3微米（范围3.4 - 4.6），缝线观厚度为3.7±0.3微米（范围3.2 - 4.0）。极囊呈梨形，长度不等，长7.2±0.6微米（范围5.8 - 8.3），宽1.3±0.2微米（范围0.9 - 1.9），极丝盘绕至少8圈。尾 appendages长38.0±6.2微米（范围23.2 - 48.8），向后分叉。孢子总长度为55.6±6.5微米（范围40.7 - 65.8）。对18S SSU rDNA序列数据的系统发育分析将该分离株置于粘体科内，表明它与寄生于美国东南部斑点叉尾鮰的一组亨内粘体虫物种关系密切。
