{"title":"Effects of moulting cycle and nutritional conditions on haemolymph proteins in Carcinus maenas","authors":"P. Busselen","doi":"10.1016/0010-406X(70)90959-X","DOIUrl":null,"url":null,"abstract":"<div><p></p><ul><li><span>1.</span><span><p>1. By means of zone-electrophoresis on cellulose acetate, the haemolymph proteins of <em>Carcinus maenas</em> have been separated into three major components: haemocyanin (fraction-D) a glycoprotein (fraction-I), and a glycolipoprotein (fraction-P). No apohaemocyanin was found.</p></span></li><li><span>2.</span><span><p>2. Moulting causes a four- to five-fold decrease in haemocyanin concentration. Premoult levels are progressively restored during the intermoult period. At ecdysis fraction-I disappears completely, and reappears about 10 days later.</p></span></li><li><span>3.</span><span><p>3. Bleeding causes a marked increase of the ratio, concentration of fraction-I/concentration of haemocyanin.</p></span></li><li><span>4.</span><span><p>4. The concentration of fraction-I is highly dependent on the nutritional status. Starvation causes the complete disappearance of the glycoprotein. During a period of excessive feeding fraction-I accumulates in the blood.</p></span></li></ul></div>","PeriodicalId":78189,"journal":{"name":"Comparative biochemistry and physiology","volume":"37 1","pages":"Pages 73-83"},"PeriodicalIF":0.0000,"publicationDate":"1970-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0010-406X(70)90959-X","citationCount":"58","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Comparative biochemistry and physiology","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0010406X7090959X","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 58
Abstract
1.
1. By means of zone-electrophoresis on cellulose acetate, the haemolymph proteins of Carcinus maenas have been separated into three major components: haemocyanin (fraction-D) a glycoprotein (fraction-I), and a glycolipoprotein (fraction-P). No apohaemocyanin was found.
2.
2. Moulting causes a four- to five-fold decrease in haemocyanin concentration. Premoult levels are progressively restored during the intermoult period. At ecdysis fraction-I disappears completely, and reappears about 10 days later.
3.
3. Bleeding causes a marked increase of the ratio, concentration of fraction-I/concentration of haemocyanin.
4.
4. The concentration of fraction-I is highly dependent on the nutritional status. Starvation causes the complete disappearance of the glycoprotein. During a period of excessive feeding fraction-I accumulates in the blood.
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