Centro de Investigacións Mariñas (CIMA), Consellería do Mar, Xunta de Galicia, 36620 Vilanova de Arousa, Spain.
Centro de Investigacións Mariñas (CIMA), Consellería do Mar, Xunta de Galicia, 36620 Vilanova de Arousa, Spain; Departament of Life Sciences, University of Alcalá, 28871 Alcalá de Henares, Spain; Research Centre for Experimental Marine Biology and Biotechnology (PIE), University of the Basque Country (UPV/EHU), 48620 Plentzia, Basque Country, Spain.
J Invertebr Pathol. 2020 May;172:107349. doi: 10.1016/j.jip.2020.107349. Epub 2020 Feb 28.
Uninucleate and binucleate cells and multinucleate plasmodia of a haplosporidan-like protist associated with heavy haemocytic infiltration were observed in histological sections of cockles, Cerastoderma edule, from the Ría de Noia (Galicia, NW Spain) in the course of a cockle health surveillance programme. Molecular assays provided identification of this protist as Minchinia tapetis, which we thus record from a new host. Prevalence of M. tapetis as high as 93% was recorded but infection intensity was low to moderate, never heavy, and abnormally high cockle mortality was not observed in the ria by shellfishers. A significant positive correlation was found between M. tapetis prevalence and sea water temperature. Sea water temperature increase associated with climate change might contribute to increase the prevalence of this infection in cockles and, as a consequence, this parasite may be considered a threat for cockle production.
在对西班牙西北部加利西亚诺瓦里亚（Ría de Noia）海湾扇贝多孔蛤（Cerastoderma edule）进行健康监测的过程中，在扇贝多孔蛤组织切片中观察到了与重度血腔细胞浸润有关的似血孢子虫单细胞核和双细胞核细胞以及多核质体。分子检测鉴定这种原生动物为 Minchinia tapetis，这是我们在一种新宿主中记录到的。记录到高达 93%的 Minchinia tapetis 流行率，但感染强度较低至中等，从未出现重度感染，贝类养殖户也没有在该海湾观察到异常高的扇贝多孔蛤死亡率。发现 Minchinia tapetis 流行率与海水温度之间存在显著正相关。与气候变化相关的海水温度升高可能导致这种感染在扇贝多孔蛤中流行率增加，因此，这种寄生虫可能被视为扇贝多孔蛤生产的威胁。
