Chaudhary Anshu, Goswami Urvashi, Gupta Abhishek, Cech Gábor, Singh Hridaya S, Molnár Kálmán, Székely Csaba, Sharma Bindu
Department of Zoology, Chaudhary Charan Singh University, Meerut, Uttar Pradesh, India.
Institute for Veterinary Medical Research, Centre for Agricultural Research, Hungarian Academy of Sciences, PO Box 18, Budapest, 1581, Hungary.
Parasitol Res. 2018 Jun;117(6):1899-1905. doi: 10.1007/s00436-018-5882-y. Epub 2018 Apr 25.
In a parasitological survey of freshwater fishes near Meerut, Uttar Pradesh, India, myxozoan infections in Pabdah catfish Ompok pabda Ham. (Siluriformes: Siluridae) were found. Round plasmodia and scattered spores of Myxobolus ompok n. sp. were found in the kidney of the host. Plasmodia measuring 150-200 μm were located in the renal interstitium. Spores of Myxobolus ompok n. sp. were elongated pyriform, 13.6-14.4 (14.8 ± 0.42) μm long, 5.6-6.4 (6.5 ± 0.33) μm wide, and 5.2-6.4 (5.9 ± 0.43) μm thick with two equal polar capsules measuring 8.0-8.5 (8.2 ± 0.2) μm in length and 1.5-2.4 (1.8 ± 0.33) in width having six filamental turns. Both the morphology and DNA analysis of the 18S rRNA gene revealed that Myxobolus ompok n. sp. is distinct from previously described species of Myxobolus and shares no significant similarity with any other Myxobolus deposited in the GenBank database. Phylogenetic analysis inferred that this species showed the closest similarity to Myxobolus miyarii (KT001495). This is the first record of any Myxobolus sp. from O. pabda in India.
在印度北方邦密拉特附近淡水鱼的寄生虫学调查中,发现帕布达鲶鱼(Ompok pabda Ham.,鲇形目:鲇科)感染了粘孢子虫。在宿主的肾脏中发现了圆形的孢质团和粘孢虫属新种(Myxobolus ompok n. sp.)的散在孢子。大小为150 - 200μm的孢质团位于肾间质中。粘孢虫属新种的孢子呈细长梨形,长13.6 - 14.4(14.8 ± 0.42)μm,宽5.6 - 6.4(6.5 ± 0.33)μm,厚5.2 - 6.4(5.9 ± 0.43)μm,有两个相等的极囊,极囊长8.0 - 8.5(8.2 ± 0.2)μm,宽1.5 - 2.4(1.8 ± 0.33)μm,有六个丝状旋。18S rRNA基因的形态学和DNA分析均表明,粘孢虫属新种与先前描述的粘孢虫物种不同,与GenBank数据库中保存的任何其他粘孢虫均无显著相似性。系统发育分析推断,该物种与宫氏粘孢虫(Myxobolus miyarii,KT001495)最为相似。这是印度首次记录到来自帕布达鲶鱼的任何粘孢虫属物种。