An apicomplexan parasite drives the collapse of the bay scallop population in New York.
An apicomplexan parasite drives the collapse of the bay scallop population in New York.
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一种顶端复合体寄生虫导致了纽约海湾扇贝种群的崩溃。
DOI：
10.1038/s41598-023-33514-3
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发表时间：
2023-04-24
影响因子：
4.6
通讯作者：
Allam, Bassem
中科院分区：
文献类型：
--
作者：
Espinosa, Emmanuelle Pales;Bouallegui, Younes;Grouzdev, Denis;Brianik, Christopher;Czaja, Raymond;Geraci-Yee, Sabrina;Kristmundsson, Arni;Muehl, Madison;Schwaner, Caroline;Tettelbach, Stephen T.;Tobi, Harrison;Allam, Bassem
海湾扇贝是沿着美国大西洋和墨西哥湾沿岸的一种重要的商业、文化和生态物种。自2019年以来，纽约的扇贝种群一直遭受大规模夏季死亡，导致成年扇贝生物量减少90-99%。对这些死亡事件的初步调查显示，感染肾脏组织的顶复门寄生虫的患病率为100%。本研究的目的是提供组织学，超微结构和分子特征的一个未描述的寄生虫，新成立的Marosporida分支（Apicomplexa）的成员，暂时命名为BSM（海湾扇贝Marosporida）。开发了分子诊断工具（定量PCR、原位杂交），用于监测疾病发展。结果表明，BSM对扇贝的肾脏、闭壳肌、鳃和性腺等多个组织均有破坏作用。显微镜观察允许识别细胞内和细胞外阶段的寄生虫。实地调查表明，疾病流行和严重程度具有明显的季节性特征，随着夏季的到来，严重病例和死亡率增加。这些结果有力地表明，BSM感染在纽约海湾扇贝种群的崩溃中起着重要作用。在此框架下，BSM可能与应激环境条件协同作用，损害宿主并导致死亡。
The bay scallop, Argopecten irradians, represents a commercially, culturally and ecologically important species found along the United States’ Atlantic and Gulf coasts. Since 2019, scallop populations in New York have been suffering large-scale summer mortalities resulting in 90–99% reduction in biomass of adult scallops. Preliminary investigations of these mortality events showed 100% prevalence of an apicomplexan parasite infecting kidney tissues. This study was designed to provide histological, ultrastructural and molecular characteristics of a non-described parasite, member of the newly established Marosporida clade (Apicomplexa) and provisionally named BSM (Bay Scallop Marosporida). Molecular diagnostics tools (quantitative PCR, in situ hybridization) were developed and used to monitor disease development. Results showed that BSM disrupts multiple scallop tissues including kidney, adductor muscle, gill, and gonad. Microscopy observations allowed the identification of both intracellular and extracellular stages of the parasite. Field surveys demonstrated a strong seasonal signature in disease prevalence and intensity, as severe cases and mortality increase as summer progresses. These results strongly suggest that BSM infection plays a major role in the collapse of bay scallop populations in New York. In this framework, BSM may synergistically interact with stressful environmental conditions to impair the host and lead to mortality.
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影响因子：
10.7
作者：
Castresana, J
通讯作者：
Castresana, J
影响因子：
2.4
作者：
Ford, Susan E.;Smolowitz, Roxanna
通讯作者：
Smolowitz, Roxanna
影响因子：
10.7
作者：
Hoang DT;Chernomor O;von Haeseler A;Minh BQ;Vinh LS
通讯作者：
Vinh LS
DOI：
10.1093/bioinformatics/bts199
发表时间：
2012-06-15
期刊：
Bioinformatics (Oxford, England)
影响因子：
--
作者：
Kearse M;Moir R;Wilson A;Stones-Havas S;Cheung M;Sturrock S;Buxton S;Cooper A;Markowitz S;Duran C;Thierer T;Ashton B;Meintjes P;Drummond A
通讯作者：
Drummond A
影响因子：
3.4
作者：
Hoang DT;Vinh LS;Flouri T;Stamatakis A;von Haeseler A;Minh BQ
通讯作者：
Minh BQ