Physiological and Transcriptome Analyses of Gill and Hepatopancreas of Potamocorbula ustulata Under Ammonia Exposure

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Publicat a:Fishes vol. 10, no. 5 (2025), p. 200
Autor principal: He, Jing
Altres autors: Wang, Xinhui, Wu, Mingyu, Lin, Zhihua, He, Lin, Zheng Xiafei
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MDPI AG
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LEADER 00000nab a2200000uu 4500
001 3211941707
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022 |a 2410-3888 
024 7 |a 10.3390/fishes10050200  |2 doi 
035 |a 3211941707 
045 2 |b d20250101  |b d20251231 
100 1 |a He, Jing  |u School of Marine Sciences, Ningbo University, Ningbo 315211, China; hejing226@126.com 
245 1 |a Physiological and Transcriptome Analyses of Gill and Hepatopancreas of <i>Potamocorbula ustulata</i> Under Ammonia Exposure 
260 |b MDPI AG  |c 2025 
513 |a Journal Article 
520 3 |a Excessive ammonia accumulation poses a significant threat to aquatic species. Potamocorbula ustulata, known for its burrowing behavior and high population density, may experience elevated ammonia levels in its environment. However, its ammonia stress response mechanisms remain unclear. This study investigates the physiological and molecular responses of P. ustulata to acute ammonia exposure. Antioxidant enzyme activity was significantly altered in the gills and hepatopancreas, with GS, GDH, and ARG levels markedly increasing in the hepatopancreas. Transcriptome analysis revealed that after 24 h of exposure, differentially expressed genes (DEGs) were enriched in apoptosis and inflammation-related pathways (MAPK, NF-kB, NOD-like receptor signaling). By 96 h, DEGs in the gills were associated with nitrogen metabolism and transport, while those in the hepatopancreas were linked to oxidative phosphorylation and amino acid metabolism. Key ammonia transport and excretion genes, including V-type H+-ATPase, Ammonium transporter Rh, and Na+/K+-ATPase, were significantly upregulated in the gills, while glutamine synthetase and glutamate dehydrogenase were upregulated in the hepatopancreas (p < 0.05). These findings suggest that ammonia stress disrupts antioxidant defense, triggers inflammation and apoptosis, and enhances ammonia tolerance through excretion, glutamine conversion, and urea synthesis. This study provides insights into the molecular mechanisms underlying ammonia tolerance in bivalves. 
651 4 |a United States--US 
651 4 |a Shanghai China 
651 4 |a China 
653 |a Mollusks 
653 |a Physiology 
653 |a Shellfish 
653 |a Glutamate-ammonia ligase 
653 |a Enzymatic activity 
653 |a Amino acids 
653 |a Population density 
653 |a Ammonia 
653 |a Metabolism 
653 |a MAP kinase 
653 |a Gills 
653 |a Oxidative phosphorylation 
653 |a Hepatopancreas 
653 |a Excretion 
653 |a H+-transporting ATPase 
653 |a Urea 
653 |a Stress response 
653 |a Nitrogen 
653 |a Antioxidants 
653 |a Gene expression 
653 |a Apoptosis 
653 |a Experiments 
653 |a Seawater 
653 |a Glutamate dehydrogenase 
653 |a Glutamine 
653 |a Burrowing behavior 
653 |a Transcriptome 
653 |a Enzymes 
653 |a Ammonium transporter 
653 |a Transcriptomes 
653 |a Na+/K+-exchanging ATPase 
653 |a Genes 
653 |a Software 
653 |a Toxicity 
653 |a Phosphorylation 
653 |a Ammonium 
653 |a Molecular modelling 
653 |a NF-κB protein 
653 |a Inflammation 
653 |a Ammonium compounds 
653 |a Signal transduction 
653 |a Enzyme activity 
653 |a Potamocorbula 
700 1 |a Wang, Xinhui  |u College of Biological &amp;amp; Environmental Sciences, Zhejiang Wanli University, Ningbo 315100, China; 2016910003@zwu.edu.cn (X.W.); wmy109052@163.com (M.W.) 
700 1 |a Wu, Mingyu  |u College of Biological &amp;amp; Environmental Sciences, Zhejiang Wanli University, Ningbo 315100, China; 2016910003@zwu.edu.cn (X.W.); wmy109052@163.com (M.W.) 
700 1 |a Lin, Zhihua  |u Ninghai Institute of Mariculture Breeding and Seed Industry, Zhejiang Wanli University, Ningbo 315604, China; zhihua9988@126.com 
700 1 |a He, Lin  |u College of Advanced Agricultural Sciences, Zhejiang Wanli University, Ningbo 315101, China 
700 1 |a Zheng Xiafei  |u Ninghai Institute of Mariculture Breeding and Seed Industry, Zhejiang Wanli University, Ningbo 315604, China; zhihua9988@126.com 
773 0 |t Fishes  |g vol. 10, no. 5 (2025), p. 200 
786 0 |d ProQuest  |t Biological Science Database 
856 4 1 |3 Citation/Abstract  |u https://www.proquest.com/docview/3211941707/abstract/embedded/75I98GEZK8WCJMPQ?source=fedsrch 
856 4 0 |3 Full Text + Graphics  |u https://www.proquest.com/docview/3211941707/fulltextwithgraphics/embedded/75I98GEZK8WCJMPQ?source=fedsrch 
856 4 0 |3 Full Text - PDF  |u https://www.proquest.com/docview/3211941707/fulltextPDF/embedded/75I98GEZK8WCJMPQ?source=fedsrch