Decrease in Total Proteins and Increase in Calcium in the Spotted Gonad of the Sea Urchin Strongylocentrotus intermedius
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- Shimizu Motohiro
- Faculty of Fisheries, Hokkaido University
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- Sakurai Izumi
- Fisheries Experimental Station of Hokkaido
書誌事項
- タイトル別名
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- Decrease in Total Proteins and Increase in Calcium in the Spotted Gonad of the Sea Urchin <i>Strongylocentrotus intermedius</i>
- Decrease in Total Proteins and Increase
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抄録
A previous histopathological investigation of the spotted gonads of the sea urchin Strongylocentrotus intermedius revealed a degradation of germinal tissues and deposition of a large amount of calcium as many spicules. In the present study, the contents of proteins (total proteins and water-soluble proteins) and calcium of the spotted gonads taken from S. intermedius were measured to identify the biochemical changes involved in protein and calcium metabolism.<br> The total proteins (TP) of the ovaries decreased as spot development progressed, although changes in the actual amount of water-soluble proteins (WSP) were minimal. This tendency was negligible in the testes. The calcium content in both gonads increased with the development of spotting. The decrease in TP is probably caused by germinal tissue degradation. The increase in calcium content indicates excess calcium caused by cessation of protein synthesis in the vitellogenesis or excess calcium influx due to tissue degradation.
収録刊行物
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- Fisheries science
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Fisheries science 60 (6), 781-783, 1994
公益社団法人 日本水産学会
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詳細情報 詳細情報について
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- CRID
- 1390001204429292672
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- NII論文ID
- 130003902632
- 40005348126
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- NII書誌ID
- AA10993718
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- NDL書誌ID
- 3644447
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- ISSN
- 09199268
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可