Physiological and molecular differences in the thermal tolerance of two varieties of kuruma prawn Marsupenaeus japonicus: critical thermal maximum and heat shock protein 70

文献类型： 外文期刊

第一作者： Dong, Hongbiao

作者： Dong, Hongbiao;Duan, Yafei;Zhang, Jiasong;Mao, Yong;Su, Yongquan;Wang, Jun

作者机构：

关键词： Upper thermal limit; Survival rate; Acclimation response ratio; Acclimatory plasticity; Optimal growth

期刊名称：FISHERIES SCIENCE （ 影响因子：1.617； 五年影响因子：1.531 ）

ISSN： 0919-9268

年卷期： 2020 年 86 卷 1 期

页码：

收录情况： SCI

摘要： Temperature is one of the most important variables that influence aquatic organisms. This study aimed to test physiological and molecular differences in the thermal tolerance of two morphologically similar Marsupenaeus japonicus. The physiological parameter was the upper thermal limit, tested via the critical thermal maximum, and the molecular parameter was the relative messenger RNA expression of heat shock proteins (HSP40, HSP60, HSP70 and HSP90), quantified via real-time polymerase chain reaction. Oxygen consumption of shrimp was measured with a respirometer. M. japonicus variety II showed a higher critical thermal maxima and survival rate and lower oxygen consumption rate than variety I, suggesting that it had higher thermal tolerance and acclimatory plasticity. M. japonicus variety I showed significantly higher production of HSP70 and HSP90, suggesting that these shrimp may have experienced more thermal damage. By comparing the differences in the stress response between two morphologically similar M. japonicus, this study provides useful information for the aquaculture of M. japonicus.

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