Changes in Physiological Homeostasis in the Gills of Litopenaeus vannamei Under Carbonate Alkalinity Stress and Recovery Conditions
文献类型： 外文期刊
作者： Xiao, Meng 1 ; Nan, Yuxiu 1 ; Yang, Yukai 2 ; Li, Hua 2 ; Duan, Yafei 2 ;
作者机构： 1.Hebei Agr Univ, Ocean Coll, Qinhuangdao 066003, Peoples R China
2.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Key Lab South China Sea Fishery Resources Exploita, State Key Lab Mariculture Biobreeding & Sustainabl, Guangzhou 510300, Peoples R China
3.Chinese Acad Fishery Sci, Shenzhen Base South China Sea Fisheries Res Inst, Shenzhen 518121, Peoples R China
4.Sanya Trop Fisheries Res Inst, Key Lab Efficient Utilizat & Proc Marine Fishery R, Sanya 572018, Peoples R China
关键词： shrimp; carbonate alkalinity; gills; physiological response
期刊名称：FISHES （ 影响因子：2.4； 五年影响因子：2.4 ）
ISSN：
年卷期： 2024 年 9 卷 11 期
页码：
收录情况： SCI
摘要： Carbonate alkalinity (CA) is the major toxic factor that interferes with the survival and growth of shrimp in saline-alkaline water. Gills are the main entry organ for CA toxicity in shrimp. In this study, low-salinity cultured Litopenaeus vannamei were exposed to 5 mmol/L CA stress for 7 days and then recovered for 7 days to explore the physiological changes in the gills under CA stress and recovery conditions at multiple biological levels. The results showed that CA stress increased the activities of antioxidative biochemical indexes (T-AOC, T-SOD, and POD) and the relative expression levels of romo1, nrf2, and gpx genes, while it decreased the relative expression levels of the sod and hsp70 genes. In addition, CA stress also increased the relative expression levels of genes involved in endoplasmic reticulum (ER) stress (bip, ire1, and xbp1), immunity (alf, crus, pen-3 and propo), apoptosis (casp-3), detoxification metabolism (cyp450 and gst), and osmotic adjustment (ca, nka-alpha, nka-beta, vatp, nhe, clc, aqp, tip4, and ccp). Although changes in some of the physiological indexes were reversed after the CA stress was relieved, they still could not effectively recover to the control level. These results reveal that CA stress has a negative impact on physiological homeostasis in the shrimp gills by inducing oxidation and ER stress and by interfering with immunity, apoptosis, detoxification, and osmotic adjustment.
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