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AlKatrani LMAA. Direct transfer to different salinities and its effect on energy and metabolic enzymes in juveniles and adults of yellowfin sea bream Acanthopagrus arabicus. JOURNAL OF FISH BIOLOGY 2023; 102:1510-1516. [PMID: 37009880 DOI: 10.1111/jfb.15393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Accepted: 03/29/2023] [Indexed: 06/09/2023]
Abstract
Juveniles and adults of Acanthopagrus arabicus were studied to compare the effect of different salt concentrations (1.5, 7.5, 15, 30 and 45 psu) at 6, 24, 48 and 96 h on activities of the enzymes creatine kinase (CK) in gills, lactate dehydrogenase (LDH) in plasma and alkaline phosphatase (ALP) in intestine. CK and LDH were found to exhibit superior activity in adults compared to juveniles. All enzymes exhibited heightened activity with the increase in salinity and decreased activity with the passage of time in all salinities. Results showed that three enzymes exhibited excellent performance in adults than in juveniles.
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Kim JH, Jeong EH, Jeon YH, Kim SK, Hur YB. Salinity-mediated changes in hematological parameters, stress, antioxidant responses, and acetylcholinesterase of juvenile olive flounders (Paralichthys olivaceus). ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2021; 83:103597. [PMID: 33493675 DOI: 10.1016/j.etap.2021.103597] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 01/05/2021] [Accepted: 01/17/2021] [Indexed: 06/12/2023]
Abstract
The purpose of this study was to confirm the limit of salinity tolerance in juvenile olive flounders (Paralichthys olivaceus) by changes in blood parameters, AChE, antioxidant and stress responses. The P. olivaceus (mean weight 38.8 ± 4.2 g and mean length 16.4 ± 1.2 cm) were exposed to different concentrations of salinity (seawater, 16, 8, 4, 2, and 0 psu) for 2 weeks. Plasma osmotic pressure was significantly decreased in the P. olivaceus at 0 psu. Hematological parameters such as hematocrit and hemoglobin were significantly decreased in the P. olivaceus at low salinity. Plasma components also changed significantly in the low salinity environment. As a stress indicator, cortisol was significantly increased at low salinity. SOD and GST antioxidant responses, were significantly increased. GSH level in the liver was significantly increased, whereas a significant decrease was observed in the gill GSH level. AChE was significantly increased in P. olivaceus at low salinity. The results of this study indicate that exposure to salinities lower than 8 psu leads to changes in hematological parameters, neurotransmitter, antioxidant and stress responses of P. olivaceus.
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Affiliation(s)
- Jun-Hwan Kim
- National Institute of Fisheries Science, West Sea Fisheries Research Institute, Fisheries Research & Development, Taean 32132, Republic of Korea; Department of Aquatic Life and Medical Science, Sun Moon University, Asan 31460, Republic of Korea.
| | - Eun-Ha Jeong
- National Institute of Fisheries Science, West Sea Fisheries Research Institute, Fisheries Research & Development, Taean 32132, Republic of Korea
| | - Yu-Hyeon Jeon
- National Institute of Fisheries Science, West Sea Fisheries Research Institute, Fisheries Research & Development, Taean 32132, Republic of Korea
| | - Su Kyoung Kim
- National Institute of Fisheries Science, West Sea Fisheries Research Institute, Fisheries Research & Development, Taean 32132, Republic of Korea
| | - Young Baek Hur
- National Institute of Fisheries Science, West Sea Fisheries Research Institute, Fisheries Research & Development, Taean 32132, Republic of Korea
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Bi B, Gao Y, Jia D, Kong L, Su Y, Rong H, Wu X, Wang X, Hu Z, Hu Q. Growth influence of juvenile golden trout (Oncorhynchus mykiss) in different osmotic conditions: implications for tissue histology, biochemical indicators, and genes transcription involved in GH/IGF system. FISH PHYSIOLOGY AND BIOCHEMISTRY 2021; 47:583-597. [PMID: 33560477 DOI: 10.1007/s10695-021-00933-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Accepted: 01/27/2021] [Indexed: 06/12/2023]
Abstract
The objectives of this study were to evaluate the effects of different salinity levels on tissue histology, blood biochemistry, and genes transcription of the GH/IGF system in juvenile golden trout (Oncorhynchus mykiss). Five experimental salinity levels (0, 8, 16, 24, and 32‰) were selected to domesticate juvenile O. mykiss for 7 days. Histological characteristics changed with salinity, including higher ionocites area and epithelium thickness in gills, narrow lumen of collecting tubules in kidneys, and high numbers of goblet cells in the intestines. Similarly, increments in slits, degenerate hepatocytes, and individualization of hepatocytes have been shown in fish reared in the 32‰ salinity group. The lowest triglyceride (TG) and the highest level of total protein (TP) were detected in fish reared at the 32‰ group. The genes transcription of the GH/IGF system altered in response to the increase of salinity. The present results add to the understanding of the physiological responses of O. mykiss on salinity stress and would be helpful in formulating strategies to optimize the aquaculture of this species in environments with fluctuating patterns of salinity.
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Affiliation(s)
- Baoliang Bi
- Faculty of Animal Science and Technology, Plateau Aquacultural College, Yunnan Agricultural University, Yunnan, 650201, China
| | - Yu Gao
- Faculty of Animal Science and Technology, Plateau Aquacultural College, Yunnan Agricultural University, Yunnan, 650201, China
| | - Dan Jia
- Faculty of Animal Science and Technology, Plateau Aquacultural College, Yunnan Agricultural University, Yunnan, 650201, China
| | - Lingfu Kong
- Faculty of Animal Science and Technology, Plateau Aquacultural College, Yunnan Agricultural University, Yunnan, 650201, China
| | - Yanhua Su
- College of Veterinary Medicine, Yunnan Agricultural University, Yunnan, 650201, China
| | - Hua Rong
- Faculty of Animal Science and Technology, Plateau Aquacultural College, Yunnan Agricultural University, Yunnan, 650201, China
| | - Xiangwei Wu
- Faculty of Animal Science and Technology, Plateau Aquacultural College, Yunnan Agricultural University, Yunnan, 650201, China
| | - Xiaowen Wang
- Faculty of Animal Science and Technology, Plateau Aquacultural College, Yunnan Agricultural University, Yunnan, 650201, China
| | - Zhuoyong Hu
- Yunnan Institute of Tropical Crops, Yunnan, 666100, China
| | - Qing Hu
- Faculty of Animal Science and Technology, Plateau Aquacultural College, Yunnan Agricultural University, Yunnan, 650201, China.
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Ahanger MA, Agarwal RM. Salinity stress induced alterations in antioxidant metabolism and nitrogen assimilation in wheat (Triticum aestivum L) as influenced by potassium supplementation. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2017; 115:449-460. [PMID: 28478373 DOI: 10.1016/j.plaphy.2017.04.017] [Citation(s) in RCA: 128] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2017] [Revised: 04/17/2017] [Accepted: 04/18/2017] [Indexed: 05/21/2023]
Abstract
Experiments were conducted on two wheat (Triticum aestivum L) cultivars exposed to NaCl stress with and without potassium (K) supplementation. Salt stress induced using NaCl caused oxidative stress resulting into enhancement in lipid peroxidation and altered growth as well as yield. Added potassium led to significant improvement in growth having positive effects on the attributes including nitrogen and antioxidant metabolism. NaCl-induced stress triggered the antioxidant defence system nevertheless, the activity of antioxidant enzymes and the content of non-enzymatic antioxidants increased in K fed plants. Enhancement in the accumulation of osmolytes comprising free proline, sugars and amino acids was observed at both the developmental stages with K supplementation associated with improvement of the relative water content and ultimately yield. Potassium significantly increased uptake and assimilation of nitrogen with concomitant reduction in the Na ions and consequently Na/K ratio. Optimal K can be used as a potential tool for alleviating NaCl stress in wheat to some extent.
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Affiliation(s)
| | - R M Agarwal
- School of Studies in Botany, Jiwaji University Gwalior, MP, India
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