{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,30]],"date-time":"2026-07-30T17:10:21Z","timestamp":1785431421573,"version":"3.56.0"},"reference-count":79,"publisher":"MDPI AG","issue":"7","license":[{"start":{"date-parts":[[2026,7,13]],"date-time":"2026-07-13T00:00:00Z","timestamp":1783900800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Guangdong S&T Programme","award":["2024B1212060001"],"award-info":[{"award-number":["2024B1212060001"]}]},{"name":"Southern Marine Science and Engineering Guangdong Laboratory","award":["SML2024SP001"],"award-info":[{"award-number":["SML2024SP001"]}]},{"DOI":"10.13039\/501100012245","name":"Science and Technology Planning Project of Guangdong Province","doi-asserted-by":"publisher","award":["2023B1212060023"],"award-info":[{"award-number":["2023B1212060023"]}],"id":[{"id":"10.13039\/501100012245","id-type":"DOI","asserted-by":"publisher"}]},{"name":"2025 Guangdong Provincial Dedicated Funds for State Key Laboratories"},{"DOI":"10.13039\/501100010203","name":"Agriculture Research System of China","doi-asserted-by":"publisher","award":["ARS-47"],"award-info":[{"award-number":["ARS-47"]}],"id":[{"id":"10.13039\/501100010203","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["32273136"],"award-info":[{"award-number":["32273136"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"award":["32273136"],"award-info":[{"award-number":["32273136"]}],"id":[{"id":"https:\/\/ror.org\/01h0zpd94","id-type":"ROR","asserted-by":"publisher"}]},{"name":"BIO-KEY Germplasm Preservation Program","award":["HT-99982021-0392"],"award-info":[{"award-number":["HT-99982021-0392"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Biomolecules"],"abstract":"<jats:p>Sperm activation and movement are pivotal determinants of fertilization success in teleosts, yet the molecular mechanisms in euryhaline species remain largely unresolved. Here, we integrated physiology and multi-omics to elucidate the osmolality, ions, and regulatory networks underlying sperm activation and movement in spotted seabass (Lateolabrax maculatus). Spotted seabass sperm showed strong motility across a broad osmotic range of 500 to 1200 mOsm\/kg, with Na+ and K+ promoting motility and Ca2+ exerting inhibitory effects. Integrated transcriptomics and proteomics identified 29 genes and 6 proteins as candidate molecules associated with Na+ and K+ signaling, Ca2+ signaling and apoptosis, and energy metabolism. Up-regulation of NHE1 suggested a potential involvement of Na+\/H+ exchange that regulated Na+ influx, while K+ influx via activated K+ channels may depolarize membrane potential. The capn1 was up-regulated, which may be associated with Ca2+-mediated apoptosis. Euryhaline fishes exhibited a broader osmotic activation range than freshwater and marine species, underscoring the critical roles of osmotic adaptability in fish sperm physiology. Ionic regulation patterns of euryhaline fishes are generally consistent with their environmental adaptation, with seawater-adapted species resembling marine fishes and freshwater-adapted species resembling freshwater fishes. Our findings highlight the integrated roles of osmotic effects and ionic regulation, providing insights into sperm activation and movement in euryhaline spotted seabass.<\/jats:p>","DOI":"10.3390\/biom16071021","type":"journal-article","created":{"date-parts":[[2026,7,13]],"date-time":"2026-07-13T08:53:58Z","timestamp":1783932838000},"page":"1021","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Physiology and Multi-Omics Provide Insights into Sperm Activation and Movement in Euryhaline Spotted Seabass (Lateolabrax maculatus)"],"prefix":"10.3390","volume":"16","author":[{"given":"Qinghua","family":"Wang","sequence":"first","affiliation":[{"name":"School of Life Sciences, State Key Laboratory of Biocontrol\/Guangdong Core Germplasm Bank for Marine Economic Animals, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)\/Guangdong Provincial Key Laboratory of Aquatic Economic Animals, Sun Yat-Sen University, Guangzhou 510275, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yuxin","family":"Zhang","sequence":"additional","affiliation":[{"name":"School of Life Sciences, State Key Laboratory of Biocontrol\/Guangdong Core Germplasm Bank for Marine Economic Animals, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)\/Guangdong Provincial Key Laboratory of Aquatic Economic Animals, Sun Yat-Sen University, Guangzhou 510275, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Weiwei","family":"Zhang","sequence":"additional","affiliation":[{"name":"School of Life Sciences, State Key Laboratory of Biocontrol\/Guangdong Core Germplasm Bank for Marine Economic Animals, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)\/Guangdong Provincial Key Laboratory of Aquatic Economic Animals, Sun Yat-Sen University, Guangzhou 510275, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yingxin","family":"Wu","sequence":"additional","affiliation":[{"name":"School of Life Sciences, State Key Laboratory of Biocontrol\/Guangdong Core Germplasm Bank for Marine Economic Animals, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)\/Guangdong Provincial Key Laboratory of Aquatic Economic Animals, Sun Yat-Sen University, Guangzhou 510275, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jiajie","family":"Li","sequence":"additional","affiliation":[{"name":"School of Life Sciences, State Key Laboratory of Biocontrol\/Guangdong Core Germplasm Bank for Marine Economic Animals, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)\/Guangdong Provincial Key Laboratory of Aquatic Economic Animals, Sun Yat-Sen University, Guangzhou 510275, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yizheng","family":"Zhang","sequence":"additional","affiliation":[{"name":"School of Life Sciences, State Key Laboratory of Biocontrol\/Guangdong Core Germplasm Bank for Marine Economic Animals, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)\/Guangdong Provincial Key Laboratory of Aquatic Economic Animals, Sun Yat-Sen University, Guangzhou 510275, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lu","family":"Li","sequence":"additional","affiliation":[{"name":"School of Life Sciences, State Key Laboratory of Biocontrol\/Guangdong Core Germplasm Bank for Marine Economic Animals, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)\/Guangdong Provincial Key Laboratory of Aquatic Economic Animals, Sun Yat-Sen University, Guangzhou 510275, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhiming","family":"Zhu","sequence":"additional","affiliation":[{"name":"School of Life Sciences, State Key Laboratory of Biocontrol\/Guangdong Core Germplasm Bank for Marine Economic Animals, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)\/Guangdong Provincial Key Laboratory of Aquatic Economic Animals, Sun Yat-Sen University, Guangzhou 510275, China"},{"name":"China-ASEAN Belt and Road Joint Laboratory on Mariculture Technology, Guangzhou 510275, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5170-9613","authenticated-orcid":false,"given":"Zining","family":"Meng","sequence":"additional","affiliation":[{"name":"School of Life Sciences, State Key Laboratory of Biocontrol\/Guangdong Core Germplasm Bank for Marine Economic Animals, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)\/Guangdong Provincial Key Laboratory of Aquatic Economic Animals, Sun Yat-Sen University, Guangzhou 510275, China"},{"name":"China-ASEAN Belt and Road Joint Laboratory on Mariculture Technology, Guangzhou 510275, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,7,13]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"69","DOI":"10.1023\/B:AQUI.0000017189.44263.bc","article-title":"The ionic and osmotic factors controlling motility of fish spermatozoa","volume":"12","author":"Cosson","year":"2004","journal-title":"Aquac. 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