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Li H, Chen F, Qin M, Liao C, Shi Y, Wu S, Rong K, Zhang X. Short-term dietary teprenone improved thermal tolerance and mitigated liver damage caused by heat stress in juvenile largemouth bass (Micropterus salmoides). Comp Biochem Physiol B Biochem Mol Biol 2024; 273:110984. [PMID: 38692348 DOI: 10.1016/j.cbpb.2024.110984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 04/27/2024] [Accepted: 04/27/2024] [Indexed: 05/03/2024]
Abstract
Heat stress seriously threatens fish survival and health, demanding immediate attention. Teprenone is a gastric mucosal protective agent that can induce heat shock protein expression. This research investigated the effects of teprenone on largemouth bass (Micropterus salmoides) subjected to heat stress. Juvenile fish were assigned to different groups: group C (control group, 0 mg teprenone/kg diet), T0, T200, T400, and T800 (0, 200, 400, and 800 mg teprenone/kg diet, respectively), which were fed for 3 days, followed by a day without the diet. All groups except group C were subjected to acute heat stress (from 24 °C to 35 °C at 1 °C per hour and then maintained at 35 °C for 3 h). The results were as follows: The critical thermal maxima were significantly higher in the T200, T400, and T800 groups compared with the T0 group (P < 0.05). Heat stress caused severe damage to the tissue morphology of the liver, while teprenone significantly reduced this injury (P < 0.05). Serum cortisol concentration decreased gradually as teprenone concentration increased, and the lowest concentration was observed in the T800 group (P < 0.05). Compared with the T0 group, the serum activities of aspartate aminotransferase, alanine aminotransferase, and gamma-glutamyl transferase were significantly lower in the T200, T400, and T800 groups (P < 0.05). The liver activities of catalase, total superoxide dismutase, and peroxidase were significantly higher in the T200 group than in the T0 group (P < 0.05). Transcript levels of the heat shock proteins (hsp90, hsp70, hspa5, and hsf1) and caspase family (caspase3 and caspase9) in the liver of the T200 group were significantly higher than those of the T0 group (P < 0.05). Western blot results showed that HSP70 and HSPA5 in the liver were significantly upregulated in the T200 group compared with the T0 group (P < 0.05). In summary, dietary teprenone improved thermal tolerance, alleviated heat stress damage in the liver, enhanced antioxidant capacity, and upregulated heat shock proteins in juvenile largemouth bass. This study offers theoretical support for applying teprenone in aquaculture to reduce financial losses caused by abiotic factors.
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Affiliation(s)
- Hongyun Li
- Hubei Provincial Engineering Laboratory for Pond Aquaculture, Hubei Hongshan Laboratory, Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, College of Fisheries, Huazhong Agricultural University, Wuhan 430070, People's Republic of China
| | - Feifei Chen
- Hubei Provincial Engineering Laboratory for Pond Aquaculture, Hubei Hongshan Laboratory, Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, College of Fisheries, Huazhong Agricultural University, Wuhan 430070, People's Republic of China
| | - Mu Qin
- Hubei Provincial Engineering Laboratory for Pond Aquaculture, Hubei Hongshan Laboratory, Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, College of Fisheries, Huazhong Agricultural University, Wuhan 430070, People's Republic of China
| | - Chenlei Liao
- Hubei Provincial Engineering Laboratory for Pond Aquaculture, Hubei Hongshan Laboratory, Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, College of Fisheries, Huazhong Agricultural University, Wuhan 430070, People's Republic of China
| | - Yaqi Shi
- Hubei Provincial Engineering Laboratory for Pond Aquaculture, Hubei Hongshan Laboratory, Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, College of Fisheries, Huazhong Agricultural University, Wuhan 430070, People's Republic of China
| | - Sihan Wu
- Hubei Provincial Engineering Laboratory for Pond Aquaculture, Hubei Hongshan Laboratory, Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, College of Fisheries, Huazhong Agricultural University, Wuhan 430070, People's Republic of China
| | - Keming Rong
- Research Institute of Huanong-Tianchen, Wuhan 430070, People's Republic of China; Hubei Tianchen Biotechnology Co., Ltd, Wuhan 430207, China.
| | - Xuezhen Zhang
- Hubei Provincial Engineering Laboratory for Pond Aquaculture, Hubei Hongshan Laboratory, Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, College of Fisheries, Huazhong Agricultural University, Wuhan 430070, People's Republic of China; Research Institute of Huanong-Tianchen, Wuhan 430070, People's Republic of China.
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Yang R, Liu X, Liu Y, Tian Q, Wang Z, Zhu D, Qian Z, Yi Y, Hu J, Li Y, Liang XF, Liu L, Su J. Dissolved oxygen and ammonia affect ammonia production via GDH/AMPK signaling pathway and alter flesh quality in Chinese perch (Siniperca chuatsi). FISH PHYSIOLOGY AND BIOCHEMISTRY 2024; 50:1237-1249. [PMID: 38517575 DOI: 10.1007/s10695-024-01333-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 03/14/2024] [Indexed: 03/24/2024]
Abstract
The dissolved oxygen (DO) and ammonia are crucial to the growth of Chinese perch (Siniperca chuatsi). Information on the effects of DO and total ammonia nitrogen (TAN) in regulating ammonia nitrogen excretion and flesh quality in Chinese perch is scanty. This study aimed to evaluate the effects of dissolved DO at oxygen levels of 3 mg/L and 9 mg/L, as well as the TAN concentrations of 0.3 mg/L and 0.9 mg/L on ammonia excretion and flesh quality. Results showed that the ammonia contents in plasma, muscle, and liver of the 9 mg/L DO group were significantly higher than those of the 3 mg/L DO group (P < 0.05). However, the expression of AMPK-related signaling pathway genes (gdh, lkb1, and ampd) and flesh quality indicators (gumminess, chewiness, hardness) in the 9 mg/L DO group were significantly lower than those in the 3 mg/L DO group. Under long-term exposure to 0.9 mg/L TAN, the ammonia contents in plasma and gill filaments, as well as muscle flesh quality (resilience, gumminess, chewiness, cohesiveness), were significantly lower than those in the 0.3 mg/L TAN group (P < 0.05). However, the activities of GDH and AMPD enzymes in the 0.9 mg/L TAN group were significantly higher than those in the 0.3 mg/L TAN group. In summary, when fish are exposed to 3 mg/L DO and 0.9 mg/L TAN in the environment for a long time, their amino acids are used for transamination and deamination, resulting in insufficient energy supply for Chinese perch, whereas 9 mg/L DO and 0.9 mg/L TAN caused deterioration of the flesh quality.
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Affiliation(s)
- Ru Yang
- College of Fisheries, Chinese Perch Research Center, Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Huazhong Agricultural University, No.1, Shizishan Street, Hongshan District, Wuhan, 430070, Hubei Province, China
| | - Xuange Liu
- College of Fisheries, Chinese Perch Research Center, Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Huazhong Agricultural University, No.1, Shizishan Street, Hongshan District, Wuhan, 430070, Hubei Province, China
| | - Yong Liu
- College of Fisheries, Chinese Perch Research Center, Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Huazhong Agricultural University, No.1, Shizishan Street, Hongshan District, Wuhan, 430070, Hubei Province, China
| | - Qingda Tian
- College of Fisheries, Chinese Perch Research Center, Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Huazhong Agricultural University, No.1, Shizishan Street, Hongshan District, Wuhan, 430070, Hubei Province, China
| | - Ziwei Wang
- College of Fisheries, Chinese Perch Research Center, Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Huazhong Agricultural University, No.1, Shizishan Street, Hongshan District, Wuhan, 430070, Hubei Province, China
| | - Dejie Zhu
- College of Fisheries, Chinese Perch Research Center, Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Huazhong Agricultural University, No.1, Shizishan Street, Hongshan District, Wuhan, 430070, Hubei Province, China
| | - Zhisong Qian
- College of Fisheries, Chinese Perch Research Center, Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Huazhong Agricultural University, No.1, Shizishan Street, Hongshan District, Wuhan, 430070, Hubei Province, China
| | - Yi Yi
- College of Fisheries, Chinese Perch Research Center, Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Huazhong Agricultural University, No.1, Shizishan Street, Hongshan District, Wuhan, 430070, Hubei Province, China
| | - Jiacheng Hu
- College of Fisheries, Chinese Perch Research Center, Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Huazhong Agricultural University, No.1, Shizishan Street, Hongshan District, Wuhan, 430070, Hubei Province, China
| | - Yan Li
- College of Fisheries, Chinese Perch Research Center, Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Huazhong Agricultural University, No.1, Shizishan Street, Hongshan District, Wuhan, 430070, Hubei Province, China
| | - Xu-Fang Liang
- College of Fisheries, Chinese Perch Research Center, Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Huazhong Agricultural University, No.1, Shizishan Street, Hongshan District, Wuhan, 430070, Hubei Province, China
| | - Liwei Liu
- College of Fisheries, Chinese Perch Research Center, Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Huazhong Agricultural University, No.1, Shizishan Street, Hongshan District, Wuhan, 430070, Hubei Province, China.
| | - Jianmei Su
- Hubei Key Laboratory of Regional Development and Environmental Response, Faculty of Resources and Environmental Science, Hubei University, Friendship Avenue 368, Wuhan, 430062, Hubei, China.
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Ou-Yang K, Zhang Q, Wang L, Yang H, He Y, Li D, Li L. New insights into endocrine reproductive toxicity of Microcystis aeruginosa combined with ammonia exposure in zebrafish. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 342:123021. [PMID: 37995953 DOI: 10.1016/j.envpol.2023.123021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Revised: 11/19/2023] [Accepted: 11/20/2023] [Indexed: 11/25/2023]
Abstract
The ecological risk posed by MCs-producing M. aeruginosa and elevated ammonia to fish in actual aquatic environments remains uncertain. To address this knowledge gap, we conducted simulations to investigate the endocrine-reproductive toxicity of prolonged exposure (45 d) to Microcystis aeruginosa (2 × 10^6 cells/mL) and 30 mg/L total ammonia nitrogen (TAN) in zebrafish under environmentally relevant conditions. Our results showed that exposure to M. aeruginosa significantly inhibited the body weight, increased gonadosomatic index (GSI), delayed oocyte development, and disrupted endocrine hormonal balance (reduced gonadotropin-releasing hormone (GnRH), and increased estradiol (E2) and testosterone (T)). Mechanistically, it should be attributed to the over-expression of hypothalamic-pituitary-gonadal-liver (HPGL) axis-related genes (cyp11a and cyp17) induced by M. aeruginosa. On the other hand, TAN exposure caused mild damage to zebrafish ovarian tissue and promoted an increase of T levels by inducing the upregulation of steroid hormone synthesis gene (3βhsd) expression in the ovary. It is worth noting that the dysregulation of E2/T ratio in zebrafish ovaries may be attributed to the inhibition of cyp19a1a by both M. aeruginosa and TAN. These results were further confirmed by changes in steroidogenic enzymes activities in the M. aeruginosa or TAN treated groups. Our findings indicated that exposure to M. aeruginosa and TAN had adverse impacts on the reproductive system of zebrafish. And the combined exposure of M. aeruginosa and TAN had more severe effects on the body weight, GSI, pathological changes, hormone levels and HPGL-axis related gene expression in female zebrafish. These results provide compelling evidence regarding the potential risks for reproductive health associated with M. aeruginosa and TAN in eutrophic water bodies experiencing M. aeruginosa blooms, and contribute to the development of effective strategies for monitoring and managing these toxins in aquatic ecosystems.
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Affiliation(s)
- Kang Ou-Yang
- College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, PR China
| | - Qian Zhang
- College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, PR China
| | - Liangmou Wang
- College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, PR China
| | - Hui Yang
- College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, PR China
| | - Ya He
- College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, PR China
| | - Dapeng Li
- College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, PR China; Engineering Research Center of Green development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Wuhan, 430070, PR China; Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan, 430070, PR China; Freshwater Aquaculture Collaborative Innovation Center of Hubei Province, Wuhan, 430070, PR China
| | - Li Li
- College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, PR China; Engineering Research Center of Green development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Wuhan, 430070, PR China; Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan, 430070, PR China; Freshwater Aquaculture Collaborative Innovation Center of Hubei Province, Wuhan, 430070, PR China.
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Guo M, Xu Z, Zhang H, Mei J, Xie J. The Effects of Acute Exposure to Ammonia on Oxidative Stress, Hematological Parameters, Flesh Quality, and Gill Morphological Changes of the Large Yellow Croaker ( Larimichthys crocea). Animals (Basel) 2023; 13:2534. [PMID: 37570342 PMCID: PMC10417668 DOI: 10.3390/ani13152534] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 08/01/2023] [Accepted: 08/03/2023] [Indexed: 08/13/2023] Open
Abstract
Ammonia is considered to be the major chemical pollutant causing fish poisoning in aquaculture. This research aimed to evaluate the impact of acute ammonia exposure on the large yellow croaker's meat quality, gill morphology, liver oxidative stress, and hematological parameters. The fish were exposed to total ammonia nitrogen concentrations of 0, 2.96, 5.92, and 8.87 mg/L for 48 h, respectively. The findings demonstrated that all ammonia-exposed fish had higher liver lactate dehydrogenase and glutamic oxalate transaminase activities. The glucose, blood urea nitrogen, and creatinine levels in 8.87 mg/L total ammonia nitrogen (TAN) were higher than other samples. The total protein, albumin, and triglyceride levels in serum decreased significantly in ammonia-exposed samples. After 48 h of ammonia exposure, superoxide dismutase activities showed a 76.1%, 118.0%, and 156.8% increase when fish were exposed to 2.96, 5.92, and 8.87 mg/L TAN, respectively. Catalase activities and glutathione contents were considerably higher (p < 0.05) in all ammonia-treated samples compared to 0 mg/L TAN. The ammonia-treated gill lamellae become thicker, shorter, and curved. Additionally, the ammonia exposure resulted in the accumulation of free amino acids and the loss of nucleotides. The inosine monophosphate and adenosine monophosphate contents in the flesh were decreased after 12 h of exposure to 2.96, 5.92, and 8.87 mg/L ammonia compared to the control group. Overall, large yellow croakers exposed to ammonia for 6 h presented not only changes in serum composition but also oxidative stress, liver and gill tissue damage and flesh quality deterioration.
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Affiliation(s)
- Meijie Guo
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China; (M.G.); (Z.X.); (H.Z.)
| | - Zhenkun Xu
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China; (M.G.); (Z.X.); (H.Z.)
| | - Hongzhi Zhang
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China; (M.G.); (Z.X.); (H.Z.)
| | - Jun Mei
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China; (M.G.); (Z.X.); (H.Z.)
- National Experimental Teaching Demonstration Center for Food Science and Engineering, Shanghai Ocean University, Shanghai 201306, China
- Shanghai Engineering Research Center of Aquatic Product Processing and Preservation, Shanghai 201306, China
| | - Jing Xie
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China; (M.G.); (Z.X.); (H.Z.)
- National Experimental Teaching Demonstration Center for Food Science and Engineering, Shanghai Ocean University, Shanghai 201306, China
- Shanghai Engineering Research Center of Aquatic Product Processing and Preservation, Shanghai 201306, China
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Huo Y, Li Y, Guo W, Liu J, Yang C, Li L, Liu H, Song L. Evaluation of Cyanobacterial Bloom from Lake Taihu as a Protein Substitute in Fish Diet-A Case Study on Tilapia. Toxins (Basel) 2021; 13:735. [PMID: 34679028 PMCID: PMC8538822 DOI: 10.3390/toxins13100735] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 10/14/2021] [Accepted: 10/15/2021] [Indexed: 11/16/2022] Open
Abstract
The utility of cyanobacterial bloom is often hindered by concerns about the toxin content. Over three years of investigation, we found that the toxin content of cyanobacterial bloom in Lake Taihu was always low in June and higher in late summer and autumn. The findings enabled us to compare the effects of diets containing low and high toxic cyanobacterial blooms on the growth and consumption safety of tilapia. There were no negative effects on the growth of tilapia, and the muscle seemed to be safe for human consumption in the treatment of 18.5% low toxic cyanobacterial bloom. Therefore, limitations of the utilization of cyanobacterial biomass can be overcome by selecting low toxic cyanobacterial bloom that can be found and collected in large lakes.
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Affiliation(s)
- Yan Huo
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; (Y.H.); (Y.L.); (W.G.); (J.L.); (C.Y.); (L.L.)
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yuanze Li
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; (Y.H.); (Y.L.); (W.G.); (J.L.); (C.Y.); (L.L.)
| | - Wei Guo
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; (Y.H.); (Y.L.); (W.G.); (J.L.); (C.Y.); (L.L.)
| | - Jin Liu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; (Y.H.); (Y.L.); (W.G.); (J.L.); (C.Y.); (L.L.)
| | - Cuiping Yang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; (Y.H.); (Y.L.); (W.G.); (J.L.); (C.Y.); (L.L.)
| | - Lin Li
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; (Y.H.); (Y.L.); (W.G.); (J.L.); (C.Y.); (L.L.)
| | - Haokun Liu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; (Y.H.); (Y.L.); (W.G.); (J.L.); (C.Y.); (L.L.)
| | - Lirong Song
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; (Y.H.); (Y.L.); (W.G.); (J.L.); (C.Y.); (L.L.)
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Guo H, Lin W, Yang L, Qiu Y, Kuang Y, Yang H, Zhang C, Li L, Li D, Tang R, Zhang X. Sub-chronic exposure to ammonia inhibits the growth of juvenile Wuchang bream (Megalobrama amblycephala) mainly by downregulation of growth hormone/insulin-like growth factor axis. ENVIRONMENTAL TOXICOLOGY 2021; 36:1195-1205. [PMID: 33720504 DOI: 10.1002/tox.23118] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 02/08/2021] [Accepted: 02/18/2021] [Indexed: 06/12/2023]
Abstract
In this study, healthy Wuchang bream (Megalobrama amblycephala) juveniles were exposed to 0, 5, 10, 20 and 30 mg/L total ammonia nitrogen for 30 days to elucidate toxic effects and mechanisms of ammonia on growth performance involved with the regulation of growth hormone/insulin-like growth factor (GH/IGF) and hypothalamic-pituitary-thyroid (HPT) axes. Our results showed that the increasing total ammonia nitrogen concentrations caused dose-depend decreases in the weight gain and specific growth rate but increases in the food conversion ratio and mortality in juvenile bream, indicating growth inhibitory effects induced by ammonia. Concurrently, GH, IGF-1 at protein and mRNA levels were significantly decreased in ammonia exposure groups (p < .05), while serum thyroid stimulating hormone, free thyroxine, free triiodothyronine levels were significantly reduced only in fish exposed to higher concentrations of 20 and 30 mg/L ammonia (p < .05), suggesting that ammonia exposure could perturb both GH/IGF-axis and HPT-axis functions. Furthermore, transcriptional levels of extracellular regulated protein kinases 2 (erk2), phosphatidylinositol 3-kinase (pi3k), protein kinase B (akt), target of rapamycin (tom) and ribosomal protein S6 kinase-polypeptide 1(s6k1) in the dorsal muscle were significantly down-regulated in the fish exposed to ammonia (p < .05). This fact indicated that MAPK/ERK pathway and PI3K/AKT pathway should be responsible for the growth inhibition. Combining the results of spearman correlation coefficient, it should be noted that the GH/IGF axis played a more important role in regulating the growth than the HPT axis in Wuchang bream under persistent ammonia stress.
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Affiliation(s)
- Honghui Guo
- College of Fisheries, Huazhong Agricultural University, Wuhan, China
| | - Wang Lin
- College of Fisheries, Huazhong Agricultural University, Wuhan, China
| | - Liping Yang
- College of Fisheries, Huazhong Agricultural University, Wuhan, China
| | - Yuming Qiu
- College of Fisheries, Huazhong Agricultural University, Wuhan, China
| | - Yu Kuang
- College of Fisheries, Huazhong Agricultural University, Wuhan, China
| | - Hui Yang
- College of Fisheries, Huazhong Agricultural University, Wuhan, China
| | - Ce Zhang
- College of Fisheries, Huazhong Agricultural University, Wuhan, China
| | - Li Li
- College of Fisheries, Huazhong Agricultural University, Wuhan, China
- Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan, China
- National Demonstration Center for Experimental Aquaculture Education (Huazhong Agricultural University), Wuhan, China
| | - Dapeng Li
- College of Fisheries, Huazhong Agricultural University, Wuhan, China
- Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan, China
- National Demonstration Center for Experimental Aquaculture Education (Huazhong Agricultural University), Wuhan, China
| | - Rong Tang
- College of Fisheries, Huazhong Agricultural University, Wuhan, China
- Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan, China
- National Demonstration Center for Experimental Aquaculture Education (Huazhong Agricultural University), Wuhan, China
| | - Xi Zhang
- College of Fisheries, Huazhong Agricultural University, Wuhan, China
- Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan, China
- National Demonstration Center for Experimental Aquaculture Education (Huazhong Agricultural University), Wuhan, China
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Wang L, Zhang D, Li S, Wang L, Yin J, Xu Z, Zhang X. Dietary Selenium Promotes Somatic Growth of Rainbow Trout (Oncorhynchus mykiss) by Accelerating the Hypertrophic Growth of White Muscle. Biol Trace Elem Res 2021; 199:2000-2011. [PMID: 32666430 DOI: 10.1007/s12011-020-02282-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Accepted: 07/06/2020] [Indexed: 12/16/2022]
Abstract
As a nutritionally essential trace element, selenium (Se) is crucial for fish growth. However, the underlying mechanisms remain unclear. Fish somatic growth relies on the white muscle growth. This study aimed to explore the effects and underlying mechanisms of Se on fish white muscle growth using a juvenile rainbow trout (Oncorhynchus mykiss) model. Fish were fed a basal diet unsupplemented or supplemented with selenium yeast at nutritional dietary Se levels (2 and 4 mg/kg Se, respectively) for 30 days. Results showed that dietary Se supplementation significantly enhanced trout somatic growth. Histological and molecular analysis of trout white muscle tissues at the vent level showed that dietary Se supplementation elevated the total cross-sectional area of white muscle, mean diameter of white muscle fibers, protein content, nuclei number, and DNA content of individual muscle fiber, and suppressed the activities of calpain system and ubiquitin-proteasome pathway. Overall, this study demonstrated that dietary Se within the nutritional range inhibits calpain- and ubiquitin-mediated protein degradation and promotes the fusion of myoblasts into the existed muscle fibers to promote the hypertrophic growth of white muscle, thereby accelerating the somatic growth of rainbow trout. Our results provide a mechanistic insight into the regulatory role of Se in fish growth.
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Affiliation(s)
- Li Wang
- Hubei Provincial Engineering Laboratory for Pond Aquaculture, Engineering Research Center of Green development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, College of Fisheries, Huazhong Agricultural University, Shizishan street 1, Wuhan, 430070, People's Republic of China
| | - Dianfu Zhang
- Hubei Provincial Engineering Laboratory for Pond Aquaculture, Engineering Research Center of Green development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, College of Fisheries, Huazhong Agricultural University, Shizishan street 1, Wuhan, 430070, People's Republic of China
| | - Sai Li
- Hubei Provincial Engineering Laboratory for Pond Aquaculture, Engineering Research Center of Green development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, College of Fisheries, Huazhong Agricultural University, Shizishan street 1, Wuhan, 430070, People's Republic of China
| | - Long Wang
- Hubei Provincial Engineering Laboratory for Pond Aquaculture, Engineering Research Center of Green development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, College of Fisheries, Huazhong Agricultural University, Shizishan street 1, Wuhan, 430070, People's Republic of China
| | - Jiaojiao Yin
- Hubei Provincial Engineering Laboratory for Pond Aquaculture, Engineering Research Center of Green development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, College of Fisheries, Huazhong Agricultural University, Shizishan street 1, Wuhan, 430070, People's Republic of China
| | - Zhen Xu
- Hubei Provincial Engineering Laboratory for Pond Aquaculture, Engineering Research Center of Green development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, College of Fisheries, Huazhong Agricultural University, Shizishan street 1, Wuhan, 430070, People's Republic of China
| | - Xuezhen Zhang
- Hubei Provincial Engineering Laboratory for Pond Aquaculture, Engineering Research Center of Green development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, College of Fisheries, Huazhong Agricultural University, Shizishan street 1, Wuhan, 430070, People's Republic of China.
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Chen L, Giesy JP, Adamovsky O, Svirčev Z, Meriluoto J, Codd GA, Mijovic B, Shi T, Tuo X, Li SC, Pan BZ, Chen J, Xie P. Challenges of using blooms of Microcystis spp. in animal feeds: A comprehensive review of nutritional, toxicological and microbial health evaluation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 764:142319. [PMID: 33069479 DOI: 10.1016/j.scitotenv.2020.142319] [Citation(s) in RCA: 86] [Impact Index Per Article: 28.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 09/01/2020] [Accepted: 09/07/2020] [Indexed: 06/11/2023]
Abstract
Microcystis spp., are Gram-negative, oxygenic, photosynthetic prokaryotes which use solar energy to convert carbon dioxide (CO2) and minerals into organic compounds and biomass. Eutrophication, rising CO2 concentrations and global warming are increasing Microcystis blooms globally. Due to its high availability and protein content, Microcystis biomass has been suggested as a protein source for animal feeds. This would reduce dependency on soybean and other agricultural crops and could make use of "waste" biomass when Microcystis scums and blooms are harvested. Besides proteins, Microcystis contain further nutrients including lipids, carbohydrates, vitamins and minerals. However, Microcystis produce cyanobacterial toxins, including microcystins (MCs) and other bioactive metabolites, which present health hazards. In this review, challenges of using Microcystis blooms in feeds are identified. First, nutritional and toxicological (nutri-toxicogical) data, including toxicity of Microcystis to mollusks, crustaceans, fish, amphibians, mammals and birds, is reviewed. Inclusion of Microcystis in diets caused greater mortality, lesser growth, cachexia, histopathological changes and oxidative stress in liver, kidney, gill, intestine and spleen of several fish species. Estimated daily intake (EDI) of MCs in muscle of fish fed Microcystis might exceed the provisional tolerable daily intake (TDI) for humans, 0.04 μg/kg body mass (bm)/day, as established by the World Health Organization (WHO), and is thus not safe. Muscle of fish fed M. aeruginosa is of low nutritional value and exhibits poor palatability/taste. Microcystis also causes hepatotoxicity, reproductive toxicity, cardiotoxicity, neurotoxicity and immunotoxicity to mollusks, crustaceans, amphibians, mammals and birds. Microbial pathogens can also occur in blooms of Microcystis. Thus, cyanotoxins/xenobiotics/pathogens in Microcystis biomass should be removed/degraded/inactivated sufficiently to assure safety for use of the biomass as a primary/main/supplemental ingredient in animal feed. As an ameliorative measure, antidotes/detoxicants can be used to avoid/reduce the toxic effects. Before using Microcystis in feed ingredients/supplements, further screening for health protection and cost control is required.
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Affiliation(s)
- Liang Chen
- State Key Laboratory of Eco-hydraulics in Northwest Arid Region, Faculty of Water Resources and Hydroelectric Engineering, Xi'an University of Technology, Xi'an 710048, China; Donghu Experimental Station of Lake Ecosystems, State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology (IHB), Chinese Academy of Sciences (CAS), Wuhan 430072, China; University of Chinese Academy of Sciences (UCAS), Beijing 100049, China.
| | - John P Giesy
- Department of Veterinary Biomedical Sciences and Toxicology Centre, University of Saskatchewan, Saskatoon, Saskatchewan S7N5B3, Canada; Department of Environmental Science, Baylor University, Waco, TX, United States
| | - Ondrej Adamovsky
- Research Centre for Toxic Compounds in the Environment (RECETOX), Masaryk University, Kamenice 753/5, CZ-625 00 Brno, Czech Republic
| | - Zorica Svirčev
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Novi Sad, Serbia; Biochemistry, Faculty of Science and Engineering, Åbo Akademi University, Turku, Finland
| | - Jussi Meriluoto
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Novi Sad, Serbia; Biochemistry, Faculty of Science and Engineering, Åbo Akademi University, Turku, Finland
| | - Geoffrey A Codd
- School of Life Sciences, University of Dundee, Dundee DD1 5EH, Scotland, UK; Biological and Environmental Sciences, University of Stirling, Stirling FK9 4LA, Scotland, UK
| | - Biljana Mijovic
- Faculty of Medicine, University of East Sarajevo, Studentska 5, 73 300 Foča, Republika Srpska, Bosnia and Herzegovina
| | - Ting Shi
- Donghu Experimental Station of Lake Ecosystems, State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology (IHB), Chinese Academy of Sciences (CAS), Wuhan 430072, China; University of Chinese Academy of Sciences (UCAS), Beijing 100049, China
| | - Xun Tuo
- Donghu Experimental Station of Lake Ecosystems, State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology (IHB), Chinese Academy of Sciences (CAS), Wuhan 430072, China; University of Chinese Academy of Sciences (UCAS), Beijing 100049, China; College of Chemistry, Nanchang University, Nanchang 330031, China
| | - Shang-Chun Li
- Donghu Experimental Station of Lake Ecosystems, State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology (IHB), Chinese Academy of Sciences (CAS), Wuhan 430072, China; University of Chinese Academy of Sciences (UCAS), Beijing 100049, China; School of Public Health, Southwest Medical University, Luzhou 646000, China
| | - Bao-Zhu Pan
- State Key Laboratory of Eco-hydraulics in Northwest Arid Region, Faculty of Water Resources and Hydroelectric Engineering, Xi'an University of Technology, Xi'an 710048, China
| | - Jun Chen
- Donghu Experimental Station of Lake Ecosystems, State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology (IHB), Chinese Academy of Sciences (CAS), Wuhan 430072, China; University of Chinese Academy of Sciences (UCAS), Beijing 100049, China.
| | - Ping Xie
- Donghu Experimental Station of Lake Ecosystems, State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology (IHB), Chinese Academy of Sciences (CAS), Wuhan 430072, China; University of Chinese Academy of Sciences (UCAS), Beijing 100049, China; State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining 810016, China; Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming 650091, China.
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Zhang W, Gu P, Zheng X, Wang N, Wu H, He J, Luo X, Zhou L, Zheng Z. Ecological damage of submerged macrophytes by fresh cyanobacteria (FC) and cyanobacterial decomposition solution (CDS). JOURNAL OF HAZARDOUS MATERIALS 2021; 401:123372. [PMID: 32645542 DOI: 10.1016/j.jhazmat.2020.123372] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 06/29/2020] [Accepted: 06/30/2020] [Indexed: 06/11/2023]
Abstract
To investigate the deleterious ecological effects of cyanobacteria on submerged macrophytes, this study investigated the effects of different concentrations of fresh cyanobacteria (FC) and cyanobacteria decomposition solution (CDS) on an experimental group of submerged macrophytes (Vallisneria natans (Lour.) Hara and Myriophyllum verticillatum Linn.). The results showed that FC and CDS not only lead to decrease in biomass and significant changes in enzyme activity and chlorophyll content in tissue, but also affected the permeability of cell membranes. The extent of damage was in the order CDS > FC, and the comprehensive stress resistance of Vallisneria natans (2.994) was more than that of Myriophyllum verticillatum (2.895). In addition, semi-permeable membranes can reduce plant damage by FC and CDS, but cannot completely prevent it. FC and CDS mainly affected the relative distribution of microbial genera on the surface of aquatic plants (p < 0.05). Furthermore, CDS caused irreversible damage to plant cells and induced programmed cell death (PCD) of plants to accelerate their decline. Therefore, FC and CDS may be one of the main reasons for the decline in submerged vegetation. This study provides a scientific basis for evaluating the harmful effects of cyanobacteria on submerged macrophytes.
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Affiliation(s)
- Weizhen Zhang
- Department of Environmental Science and Engineering, Fudan University, Shanghai, 200433, China.
| | - Peng Gu
- Department of Environmental Science and Engineering, Fudan University, Shanghai, 200433, China
| | - Xiaowei Zheng
- Department of Environmental Science and Engineering, Fudan University, Shanghai, 200433, China
| | - Ning Wang
- Department of Environmental Science and Engineering, Fudan University, Shanghai, 200433, China
| | - Hanqi Wu
- College of Environment, Hohai University, Nanjing, 211106, China
| | - Jian He
- Department of Environmental Science and Engineering, Fudan University, Shanghai, 200433, China
| | - Xingzhang Luo
- Department of Environmental Science and Engineering, Fudan University, Shanghai, 200433, China
| | - Liang Zhou
- Nanjing Perennial Root Flowers Botanical Garden, 210017, China
| | - Zheng Zheng
- Department of Environmental Science and Engineering, Fudan University, Shanghai, 200433, China.
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Xia H, Song T, Wang L, Jiang L, Zhou Q, Wang W, Liu L, Yang P, Zhang X. Effects of dietary toxic cyanobacteria and ammonia exposure on immune function of blunt snout bream (Megalabrama amblycephala). FISH & SHELLFISH IMMUNOLOGY 2018; 78:383-391. [PMID: 29674123 DOI: 10.1016/j.fsi.2018.04.023] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 04/10/2018] [Accepted: 04/11/2018] [Indexed: 06/08/2023]
Abstract
Cyanobacterial blooms caused by water eutrophication have become a worldwide problem. During the degradation of toxic cyanobacterial blooms, elevated ammonia and microcystins concentrations co-occur and exert toxicity on fish. Up to now, the combined effect of microcystins and ammonia on fish immunotoxicity has not been reported. The present study investigated immune responses of blunt snout bream (Megalabrama amblycephala) to dietary toxic cyanobacteria and ammonia exposure. Megalobrama amblycephala were exposed to solutions with different concentrations of NH3-N (0, 0.06, 0.12 mg/L) and fed with diets containing 15% and 30% of toxic cyanobacteria lyophilized powder for 30 d. The microcystins concentration in different organs of Megalobrama amblycephala was in the following sequence: head kidney > liver > intestine > gonad > spleen > gill > trunk kidney > brain > muscle > heart. In both head kidney and spleen, the MC-LR and MC-RR concentration increased significantly with increasing NH3-N concentration. It indicates that NH3-N maybe promote the accumulation of microcystins in immune organs of Megalobrama amblycephala. Meanwhile, broadened peripheral interspace of lymphocytes, nucleus shrivel and edematous mitochondria were observed in head kidney lymphocyte of toxic treatment fish. Moreover, there were significant interactions between dietary toxic cyanobacteria and ammonia exposure on head kidney macrophage phagocytosis activity, respiratory burst activities, total number of white blood cells and the transcriptional levels of sIgM, mIgD and sIgZ genes. Our data clearly demonstrated that dietary toxic cyanobacteria combined with ammonia exposure showed a synergistic effect on Megalobrama amblycephala immunotoxicity.
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Affiliation(s)
- Hu Xia
- College of Fisheries, Huazhong Agricultural University, Freshwater Aquaculture Collaborative Innovation Center of Hubei Province, Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan 430070, People's Republic of China; Collaborative Innovation Center for Efficient and Health Production of Fisheries in Hunan Province, Key Laboratory of Health Aquaculture and Product Processing in Dongting Lake Area of Hunan Province, Zoology Key Laboratory of Hunan Higher Education, Hunan University of Arts and Science, Hunan Changde 415000, People's Republic of China
| | - Ting Song
- College of Fisheries, Huazhong Agricultural University, Freshwater Aquaculture Collaborative Innovation Center of Hubei Province, Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan 430070, People's Republic of China
| | - Li Wang
- College of Fisheries, Huazhong Agricultural University, Freshwater Aquaculture Collaborative Innovation Center of Hubei Province, Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan 430070, People's Republic of China
| | - Liangsen Jiang
- Collaborative Innovation Center for Efficient and Health Production of Fisheries in Hunan Province, Key Laboratory of Health Aquaculture and Product Processing in Dongting Lake Area of Hunan Province, Zoology Key Laboratory of Hunan Higher Education, Hunan University of Arts and Science, Hunan Changde 415000, People's Republic of China
| | - Qiting Zhou
- Collaborative Innovation Center for Efficient and Health Production of Fisheries in Hunan Province, Key Laboratory of Health Aquaculture and Product Processing in Dongting Lake Area of Hunan Province, Zoology Key Laboratory of Hunan Higher Education, Hunan University of Arts and Science, Hunan Changde 415000, People's Republic of China
| | - Weimin Wang
- College of Fisheries, Huazhong Agricultural University, Freshwater Aquaculture Collaborative Innovation Center of Hubei Province, Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan 430070, People's Republic of China
| | - Liangguo Liu
- Collaborative Innovation Center for Efficient and Health Production of Fisheries in Hunan Province, Key Laboratory of Health Aquaculture and Product Processing in Dongting Lake Area of Hunan Province, Zoology Key Laboratory of Hunan Higher Education, Hunan University of Arts and Science, Hunan Changde 415000, People's Republic of China
| | - Pinhong Yang
- Collaborative Innovation Center for Efficient and Health Production of Fisheries in Hunan Province, Key Laboratory of Health Aquaculture and Product Processing in Dongting Lake Area of Hunan Province, Zoology Key Laboratory of Hunan Higher Education, Hunan University of Arts and Science, Hunan Changde 415000, People's Republic of China
| | - Xuezhen Zhang
- College of Fisheries, Huazhong Agricultural University, Freshwater Aquaculture Collaborative Innovation Center of Hubei Province, Hubei Provincial Engineering Laboratory for Pond Aquaculture, Wuhan 430070, People's Republic of China.
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