Flores Verónica, Viozzi Gustavo
CONICET-UNC Laboratorio de Parasitología, Centro Regional Universitario Bariloche, Quintral 1250 (8400), San Carlos de Bariloche, Argentina.
J Parasitol. 2007 Apr;93(2):418-21. doi: 10.1645/GE-926R1.1.
The infection of Myxobolus galaxii Szidat, 1953, from the musculature and abdominal organs of northwestern Patagonian Galaxias maculatus is described. Plasmodia are histozoic and intercellular. Spores are pyriform in valvar view and biconvex in sutural view, with 4-9 edge notches in the sutural line, varying in shape within the same plasmodium. Myxobolus galaxii was detected in fish from 7 of 17 Andean Patagonian lakes, with prevalences ranging between 2 and 17%. A repeating pattern of summer increment in prevalence was observed, which could be explained by the ontogenetic migratory movements of the fish in Lake Gutiérrez. Also, accumulation of plasmodia through the life span of fish was detected.
描述了1953年从巴塔哥尼亚西北部黄斑南乳鱼的肌肉组织和腹部器官中发现的加尔氏黏液球虫感染情况。疟原虫为组织内寄生且在细胞间。孢子在瓣面观呈梨形，在缝线观呈双凸形，缝线处有4 - 9个边缘切口，在同一疟原虫内形状各异。在17个安第斯巴塔哥尼亚湖泊中的7个湖泊的鱼类中检测到加尔氏黏液球虫，患病率在2%至17%之间。观察到患病率在夏季呈重复上升模式，这可以通过古铁雷斯湖鱼类的个体发育迁徙运动来解释。此外，还检测到疟原虫在鱼的整个生命周期中不断积累。
