Viozzi Gustavo P, Flores Verónica R
Laboratorio de Parasitología, Centro Regional Universitario Bariloche, Universidad Nacional del Comahue, Quintral 1250, (8400) San Carlos de Bariloche, Río Negro, Argentina.
Folia Parasitol (Praha). 2003 Sep;50(3):190-4. doi: 10.14411/fp.2003.034.
Myxidium biliare sp. n., a new myxosporean species parasitizing the gall bladder of Galaxias maculatus (Jenyns), in Patagonia, is described. Its coelozoic plasmodia were floating free in the bile. Spores are fusiform 13.7 +/- 0.9 microm long and 6.9 +/- 0.6 microm wide, with rounded ends in frontal view and slightly pointed ends in sutural view; shell with ridges and sinuous sutural line. Both maximum prevalence and maximum percentage of immature plasmodia occurred in summer. In winter the prevalence and the percentage of immature plasmodia fell to their lowest values. Prevalence was independent of host sex but increased with host length. Prevalence in 15 Patagonian Andean lakes (situated from 39 degrees 25'S to 41 degrees 30'S) ranged between 4.2% and 70%.
描述了巴塔哥尼亚地区寄生于黄斑南乳鱼（Jenyns）胆囊中的一种新的粘孢子虫——胆汁粘体虫（Myxidium biliare sp. n.）。其腔寄生型原质团游离于胆汁中。孢子呈梭形，长13.7±0.9微米，宽6.9±0.6微米，正面观两端圆形，缝面观两端稍尖；壳具脊和弯曲的缝线。未成熟原质团的最高患病率和最高百分比均出现在夏季。冬季患病率和未成熟原质团的百分比降至最低值。患病率与宿主性别无关，但随宿主长度增加而升高。在15个巴塔哥尼亚安第斯湖泊（位于南纬39°25′至41°30′之间）中的患病率在4.2%至70%之间。
