Physiological responses in Nile tilapia (Oreochromis niloticus) induced by combined stress of environmental salinity and triphenyltin

被引：11

作者：

Xing, Shaoying ^{[1
]}

Li, Ping ^{[1
]}

He, Shuwen ^{[1
]}

Cao, Zhihan ^{[1
]}

Wang, Xu ^{[1
]}

Cao, Xuqian ^{[1
]}

Liu, Bin ^{[1
]}

Chen, Chengzhuang ^{[1
]}

You, Hong ^{[2
]}

Li, Zhi-Hua ^{[1
,3
]}

机构：

[1] Shandong Univ, Marine Coll, Weihai 264209, Shandong, Peoples R China

[2] Harbin Inst Technol, State Key Lab Urban Water Resources & Environm, Harbin 150001, Peoples R China

[3] Shandong Univ, Marine Coll, Weihai 264209, Peoples R China

来源：

MARINE ENVIRONMENTAL RESEARCH | 2022年 / 180卷

基金：

国家重点研发计划;

关键词：

Salinity; Triphenyltin; Osmoregulation; Energy metabolism; FRESH-WATER; RAINBOW-TROUT; MOZAMBIQUE TILAPIA; NA+/K+-ATPASE; ORGANOTIN COMPOUNDS; GENE-EXPRESSION; RICH CELLS; K+-ATPASE; GILL NA; TOXICITY;

D O I：

10.1016/j.marenvres.2022.105736

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Triphenyltin (TPT) has attracted considerable attention owing to its vitality, bioaccumulation, and lurking damage. TPT widely exists in complex salinity areas such as estuaries and coastal regions. However, there are few studies on the toxicological behavior of TPT under different salinity. In the study, juvenile Nile tilapia (Oreo-chromis niloticus) were utilized as model animals to investigate the effects of environmental relevant TPT exposure on the osmoregulation and energy metabolism in gill under different salinity. The results showed that salinity and TPT single or combined exposure affected the morphology of the gill tissue. After TPT exposure, Na+- K+-ATPase (NKA) activity significantly decreased at 0 ppt, while NKA and Ca2+-Mg2+-ATPase (CMA) activities significantly increased at 15 ppt. In addition, significantly higher succinate dehydrogenase (SDH) and lactate dehydrogenase (LDH) activities were found in the control fish compared to the TPT-exposed ones at 15 ppt. Quantitative real-time PCR results showed that TPT exposure affected the expression of osmoregulation and energy metabolism-related genes under different salinity. Overall, TPT exposure interfered with osmoregulation and energy metabolism under different salinity. The study will provide reference data for assessing the toxicity of organotin compounds in complex-salinity areas.

引用

页数：8

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