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
作者： Dong, Hongbiao 1 ; Mao, Yong 2 ; Duan, Yafei 1 ; Su, Yongquan 2 ; Wang, Jun 2 ; Zhang, Jiasong 1 ;
作者机构： 1.Chinese Acad Fishery Sci, Key Lab South China Sea Fishery Resources Exploit, Minist Agr & Rural Affairs, South China Sea Fisheries Res Inst, 231 Xingang West Rd, Guangzhou 510300, Peoples R China
2.Xiamen Univ, Coll Ocean & Earth Sci, 422 Siming South Rd, Xiamen 361005, Fujian, Peoples R China
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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