Thelohanellus nikolskii, Achmerov, 1955 is a well-known myxozoan parasite of the common carp (Cyprinus carpio L.). Infection regularly manifests in numerous macroscopic cysts on fins two to three month-old pond-cultured fingerlings July and August. However, infection also scales year-old ponds natural waters May June. Based myxospore morphology tissue specificity, at both sites seems be caused ...

The American pumpkinseed Lepomis gibbosus, was introduced to Europe more than one hundred years ago. Currently it is a common fish in European freshwaters but relatively few specific parasites infect this new habitat. In only single species, Myxobolus dechtiari seems represent the myxosporean fauna of centrarchid fishes. M. found both Portugal and Hungary. This species forms plasmodia with elon...

A histochemical study using lectin methods was performed on myxosporean parasites from vastly different fish hosts from marine and fresh waters. Six biotinylated lectins were used (WGA, SBA, BS-I, Con-A, UEA-I and SNA). The binding pattern of Con-A and WGA revealed the presence of mannose and/or glucose, and N-acetyl-D-glucosamine respectively, in polar capsules and valves of most of the myxosp...

Two groups of brown trout Salmo trutta L. were studied, one after natural exposure to PKD-infected waters, the other after laboratory challenge by intraperitoneal inoculation with PKDinfected kidney tissue from rainbow trout Salmo gairdneri Richardson. Subclinical PKD developed in both groups; renal intraluminal myxosporean organisms were observed in both groups. The implications of these findi...

We examined 11 Prussian carp, Carassius gibelio (Bloch), from the upper Yellow River running through Inner Mongolia (Wuhai City) to record myxosporean species. Between 6 and 15 elongated cysts of Henneguya doneci were located at the basal part of the gill filaments of 3 carp (27.3%); no more myxosporean plasmodia were found in other organs. Although the morphology and morphometric values of the...

As new pathogenic strains are emerging and threatening aquaculture development, myxosporeans (Myxozoa) are receiving much attention in recent years. Myxosporean taxonomy is traditionally based on morphology of the myxospore stage. Molecular data on Indian myxosporeans are rare. In this report, the 18S rRNA gene sequence of Myxobolus cuttacki infecting gill lamellae of minor carp Labeo bata (Ham...