Universidad Autónoma de Baja California - Facultad de Ciencias Marinas, Carretera Transpeninsular Ensenada-Tijuana No. 3917, Zona Playitas, 22860 Ensenada, Baja CA, Mexico.
Centro de Investigación Científica y Educación Superior de Ensenada (CICESE), Carretera Ensenada-Tijuana No. 3918, Zona Playitas, 22860 Ensenada, Baja CA, Mexico.
J Invertebr Pathol. 2021 Mar;180:107543. doi: 10.1016/j.jip.2021.107543. Epub 2021 Feb 4.
Dark Leathery Surface of Geoduck Clams (LSGC) is an alteration that affects the periostracum of the mantle and siphon of Panopea generosa from the northwest coast of Canada and Mexico. This alteration affects commercialization and possibly the survival of the clams. The cause of LSGC is unknown but has been correlated with presence of fungi and protozoans. We detected a similar alteration in Panopea globosa from Baja California, Mexico and the histophagous ciliate Uronema marinum was isolated from affected siphon tissue. U. marinum was identified by its morphology and by genetic analysis of the gene 18S rRNA. This is the first record of LSGC in P. globosa and the first identification of a histophagous protozoan associated with it.
象拔蚌（LSGC）的暗褐色表皮是一种影响外套膜和太平洋潜泥蛤虹吸管的变化，这种变化影响了商业价值，也可能影响了蛤的生存。LSGC 的原因尚不清楚，但与真菌和原生动物的存在有关。我们在来自墨西哥下加利福尼亚的 Panopea globosa 中也发现了类似的变化，并且从受影响的虹吸管组织中分离出了食组织的纤毛虫 Uronema marinum。U. marinum 通过其形态和 18S rRNA 基因的遗传分析进行鉴定。这是 LSGC 在 P. globosa 中的首次记录，也是首次鉴定出与它相关的食组织原生动物。
