Natural transmission of Hematodinium perezi in juvenile blue crabs (Callinectes sapidus) in the laboratory
Natural transmission of Hematodinium perezi in juvenile blue crabs (Callinectes sapidus) in the laboratory
复制标题
实验室中 Hematodinium perezi 在幼年蓝蟹 (Callinectes sapidus) 中的自然传播
DOI：
10.1016/j.jip.2023.107918
复制
发表时间：
2023
影响因子：
3.4
通讯作者：
Shields, Jeffrey D.
中科院分区：
文献类型：
--
作者：
Chen, Xuqing;Reece, Kimberly S.;Shields, Jeffrey D.
贝氏血藻是一种内寄生于海洋甲壳类动物，主要是十足动物的甲藻。它发生在青蟹幼体中，发病率很高，在该宿主中具有严重的致病作用。宿主外的生活史还没有得到实验研究，到目前为止，利用小孢子进行传播还没有成功。我们研究了H的自然传播动力学。Perezi在实验室中使用了小型幼蟹和高温，前者在野外很容易受到感染，后者被认为可以刺激恐龙孢子的产生。天然水传播给幼蟹的传播率在7%到100%之间，与从水族箱水中测量的恐孢子密度无关。在25摄氏度的幼稚宿主中，感染似乎发展迅速，这表明夏末和初秋的气温升高对h的传播有很强的影响。在自然系统中。
Hematodinium pereziis a dinoflagellate endoparasitic in marine crustaceans, primarily decapods. It occurs in juvenile blue crabs,Callinectes sapidus, at high prevalence levels and has severe pathogenic effects in this host. The life history outside the host has not been experimentally investigated and, until now, transmission using dinospores has not been successful. We investigated the natural transmission dynamics ofH. pereziin the laboratory using small juvenile crabs, which are highly susceptible to infection in the field, and elevated temperatures, which are known to stimulate dinospore production. Natural water-borne transmission to naïve crabs varied between 7 and 100% and was not correlated with dinospore densities measured from their aquaria water. Infections appeared to develop quickly in naïve hosts at 25 °C, suggesting that elevated temperatures as seen in the late summer and early autumn have a strong influence on the transmission ofH. pereziin natural systems.