Effect of Air Exposure and Re-Submersion on the Histological Structure, Antioxidant Response, and Gene Expression of Procambarus Clarkii
文献类型: 外文期刊
第一作者: Lei, Xiangyu
作者: Lei, Xiangyu;Yang, Lishi;Huang, Jianhua;Lei, Xiangyu;Yang, Lishi;Yang, Qibin;Zhou, Falin;Jiang, Shigui;Huang, Jianhua;Tan, Liqi
作者机构:
关键词: Procambarus clarkii; air exposure; re-submersion; histological structure; antioxidant activities; gene expression
期刊名称:ANIMALS ( 影响因子:3.0; 五年影响因子:3.2 )
ISSN: 2076-2615
年卷期: 2023 年 13 卷 3 期
页码:
收录情况: SCI
摘要: Simple Summary Dry transport often leads to air exposure of crayfish, and it is necessary to understand the physiological status of crayfish after air exposure and re-submersion. The aim of this study was to investigate the effect of air exposure on the physiology of crayfish and to evaluate the recovery status of crayfish after re-submersion. Results showed that air exposure had significant effects on the hepatopancreas and gills of crayfish and that re-submersion reduced the harmful response to a certain degree. Air exposure is an important environmental stressor during the transportation and cultivation of Procambarus clarkii. We evaluated the effect of re-submersion for 24 h after dry transportation for 24 h on the histological structure, antioxidant activity, and gene expression of crayfish. The antioxidant parameters of catalase (CAT), superoxide dismutase (SOD), malondialdehyde (MDA), and lactate dehydrogenase (LDH), and the relative expression of CAT, SOD, HSP70, and ferritin genes were subsequently measured in the hepatopancreas and gills at both stages. Histopathology found that air exposure led to vacuolation of the hepatopancreas and disorderly arrangement of respiratory epithelial cells (REC) in the gills. The activities of catalase (CAT), superoxide dismutase (SOD), malondialdehyde (MDA), and lactic dehydrogenase (LDH) in the hepatopancreas and gills increased with short-term air exposure. The relative expression of genes (CAT, SOD, HSP70, and Ferritin) were induced after short-term air exposure. During re-submersion, MDA content and CAT and SOD activities in the hepatopancreas and gills were restored after 24 h, however, LDH activity and hepatopancreatic tissue damage were not repaired. Our results indicate that air exposure can cause oxidative damage to P. clarkii, and CAT and SOD can be used to determine the response of crayfish exposed to air, in addition to some damage that can be eliminated after re-submersion to a limited degree. This study provides foundational data that re-submersion can improve crayfish performance under hypoxic stress to a certain extent and will lead to the development of more effective transportation strategies and decrease economic losses in the future.
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