Proteolytic and anti-proteolytic activity in the seminal plasma of Eurasian perch (Perca fluviatilis L.) during the spawning period
The aim of this study was to describe possible changes in protease and anti-protease activity in the seminal plasma of European perch (Perca fluviatilis L.) during the spawning time. No significant difference in proteolytic activity was observed between the beginning and the late period of the spawn...
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Czech Academy of Agricultural Sciences
2011-09-01
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| Series: | Czech Journal of Animal Science |
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| Online Access: | https://cjas.agriculturejournals.cz/artkey/cjs-201109-0002_proteolytic-and-anti-proteolytic-activity-in-the-seminal-plasma-of-eurasian-perch-perca-fluviatilis-l-during.php |
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| author | J. Król R. Kowalski K. Demska-Zakęś P. Hliwa J. Glogowski |
| author_facet | J. Król R. Kowalski K. Demska-Zakęś P. Hliwa J. Glogowski |
| author_sort | J. Król |
| collection | DOAJ |
| description | The aim of this study was to describe possible changes in protease and anti-protease activity in the seminal plasma of European perch (Perca fluviatilis L.) during the spawning time. No significant difference in proteolytic activity was observed between the beginning and the late period of the spawning season in perch. Anti-protease activity significantly increased during the sampling time. Electrophoretic profiles of gelatinolytic activity in the seminal plasma of perch were characterized by four molecular forms, which depend on the presence of Ca2+ during incubation. We also found two forms of caseinolytic activity with low molecular weights, which were independent of calcium ions. However, both activities were fully stopped by the chelator of calcium ions (EDTA). In this study, non-typical profiles of gelatinolytic acti-vity were also observed. Profiles of protease activities in the perch seminal plasma are constant during the reproduction season indicating that the regulation of protease activity in seminal plasma occurs via protease inhibitors which are abundant in this fluid. Results concerning electrophoresis revealed at least seven forms of anti-proteases in the seminal plasma of perch. Concluded, anti-proteases comprise a high percentage of all proteins in the seminal plasma of perch, while the increase at the end of spawning season is probably protecting spermatozoa during the spawning time in perch testes. |
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| id | doaj.art-2440d1a6a8444a2e97bdbfab34a419a3 |
| institution | Directory Open Access Journal |
| issn | 1212-1819 1805-9309 |
| language | English |
| last_indexed | 2024-04-10T08:26:57Z |
| publishDate | 2011-09-01 |
| publisher | Czech Academy of Agricultural Sciences |
| record_format | Article |
| series | Czech Journal of Animal Science |
| spelling | doaj.art-2440d1a6a8444a2e97bdbfab34a419a32023-02-23T03:32:54ZengCzech Academy of Agricultural SciencesCzech Journal of Animal Science1212-18191805-93092011-09-0156939039710.17221/1291-CJAScjs-201109-0002Proteolytic and anti-proteolytic activity in the seminal plasma of Eurasian perch (Perca fluviatilis L.) during the spawning periodJ. Król0R. Kowalski1K. Demska-Zakęś2P. Hliwa3J. Glogowski4Department of Ichthyology, University of Warmia and Mazury, Olsztyn, PolandDepartment of Gamete and Embryo Biology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Olsztyn, PolandDepartment of Ichthyology, University of Warmia and Mazury, Olsztyn, PolandDepartment of Ichthyology, University of Warmia and Mazury, Olsztyn, PolandDepartment of Ichthyology, University of Warmia and Mazury, Olsztyn, PolandThe aim of this study was to describe possible changes in protease and anti-protease activity in the seminal plasma of European perch (Perca fluviatilis L.) during the spawning time. No significant difference in proteolytic activity was observed between the beginning and the late period of the spawning season in perch. Anti-protease activity significantly increased during the sampling time. Electrophoretic profiles of gelatinolytic activity in the seminal plasma of perch were characterized by four molecular forms, which depend on the presence of Ca2+ during incubation. We also found two forms of caseinolytic activity with low molecular weights, which were independent of calcium ions. However, both activities were fully stopped by the chelator of calcium ions (EDTA). In this study, non-typical profiles of gelatinolytic acti-vity were also observed. Profiles of protease activities in the perch seminal plasma are constant during the reproduction season indicating that the regulation of protease activity in seminal plasma occurs via protease inhibitors which are abundant in this fluid. Results concerning electrophoresis revealed at least seven forms of anti-proteases in the seminal plasma of perch. Concluded, anti-proteases comprise a high percentage of all proteins in the seminal plasma of perch, while the increase at the end of spawning season is probably protecting spermatozoa during the spawning time in perch testes.https://cjas.agriculturejournals.cz/artkey/cjs-201109-0002_proteolytic-and-anti-proteolytic-activity-in-the-seminal-plasma-of-eurasian-perch-perca-fluviatilis-l-during.phpeuropean perchseminal plasmaprotease and anti-protease activity |
| spellingShingle | J. Król R. Kowalski K. Demska-Zakęś P. Hliwa J. Glogowski Proteolytic and anti-proteolytic activity in the seminal plasma of Eurasian perch (Perca fluviatilis L.) during the spawning period Czech Journal of Animal Science european perch seminal plasma protease and anti-protease activity |
| title | Proteolytic and anti-proteolytic activity in the seminal plasma of Eurasian perch (Perca fluviatilis L.) during the spawning period |
| title_full | Proteolytic and anti-proteolytic activity in the seminal plasma of Eurasian perch (Perca fluviatilis L.) during the spawning period |
| title_fullStr | Proteolytic and anti-proteolytic activity in the seminal plasma of Eurasian perch (Perca fluviatilis L.) during the spawning period |
| title_full_unstemmed | Proteolytic and anti-proteolytic activity in the seminal plasma of Eurasian perch (Perca fluviatilis L.) during the spawning period |
| title_short | Proteolytic and anti-proteolytic activity in the seminal plasma of Eurasian perch (Perca fluviatilis L.) during the spawning period |
| title_sort | proteolytic and anti proteolytic activity in the seminal plasma of eurasian perch perca fluviatilis l during the spawning period |
| topic | european perch seminal plasma protease and anti-protease activity |
| url | https://cjas.agriculturejournals.cz/artkey/cjs-201109-0002_proteolytic-and-anti-proteolytic-activity-in-the-seminal-plasma-of-eurasian-perch-perca-fluviatilis-l-during.php |
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