Temporal and tissue-specific regulation of energy metabolism in the swimming crab Portunus trituberculatus during nitrite stress and recovery
文献类型： 外文期刊
作者： Jiang, Yi 1 ; Liu, Xiaochen 1 ; Han, Huicong 1 ; Shang, Yan 1 ; Li, Jitao 1 ; Gao, Baoquan 1 ; Ren, Yichao 3 ; Meng, Xianliang 1 ;
作者机构： 1.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, State Key Lab Mariculture Biobreeding & Sustainabl, Qingdao 266071, Shandong, Peoples R China
2.Ocean Univ China, Key Lab Mariculture, Minist Educ, Qingdao 266003, Peoples R China
3.Qingdao Agr Univ, Sch Marine Sci & Engn, Qingdao 266109, Peoples R China
关键词： Nitrite; Energy metabolism; AMPK; Portunus trituberculatus
期刊名称：MARINE POLLUTION BULLETIN （ 影响因子：4.9； 五年影响因子：5.6 ）
ISSN： 0025-326X
年卷期： 2024 年 208 卷
页码：
收录情况： SCI
摘要： Nitrite is a common pollutant in aquaculture systems that poses a significant threat to aquatic animals. Energy metabolism is critical in ensuring survival of animals under environmental stressors. However, regulation of energy metabolism in crustaceans under nitrite stress has not been well understood. Here we investigated energy metabolism regulation during nitrite stress and recovery in different tissues of the swimming crab Portunus trituberculatus, an important aquaculture species in China. Our results revealed that nitrite can cause tissue hypoxia and impair energy homeostasis, and energy balance cannot be restored even after a 96-hour recovery. Following exposure, mobilization of glycogen and lipids exhibited different temporal patterns. In response to energy imbalance, AMPK signaling was activated to counter energy imbalance. However, prolonged nitrite stress impaired AMPK signaling, leading to a further decline in energy supply. The findings improve our understanding for nitrite toxicity in P. trituberculatus, and provide valuable information for aquaculture management.
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