{"title":"【Helix aspersa Müller（软体动物腹足纲Pulmonata）的氮排泄】。","authors":"M Charrier, J Daguzan","doi":"","DOIUrl":null,"url":null,"abstract":"<p><p>Helix aspersa, studied in Brittany, has not a complete uricolytic enzymatic chain. Allantoïnase and allantoïcase are absent, but, in vitro, uricase and urease are very active. A part from uric acid, Helix aspersa shows a high rate of urea and ammonia. The level of these substances is dependant on the age of the snail and on its physiological state.</p>","PeriodicalId":75504,"journal":{"name":"Annales de la nutrition et de l'alimentation","volume":"34 4","pages":"709-23"},"PeriodicalIF":0.0000,"publicationDate":"1980-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"[Nitrogen excretion of Helix aspersa Müller (Mollusca Gastropoda Pulmonata)].\",\"authors\":\"M Charrier, J Daguzan\",\"doi\":\"\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>Helix aspersa, studied in Brittany, has not a complete uricolytic enzymatic chain. Allantoïnase and allantoïcase are absent, but, in vitro, uricase and urease are very active. A part from uric acid, Helix aspersa shows a high rate of urea and ammonia. The level of these substances is dependant on the age of the snail and on its physiological state.</p>\",\"PeriodicalId\":75504,\"journal\":{\"name\":\"Annales de la nutrition et de l'alimentation\",\"volume\":\"34 4\",\"pages\":\"709-23\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1980-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Annales de la nutrition et de l'alimentation\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Annales de la nutrition et de l'alimentation","FirstCategoryId":"1085","ListUrlMain":"","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
[Nitrogen excretion of Helix aspersa Müller (Mollusca Gastropoda Pulmonata)].
Helix aspersa, studied in Brittany, has not a complete uricolytic enzymatic chain. Allantoïnase and allantoïcase are absent, but, in vitro, uricase and urease are very active. A part from uric acid, Helix aspersa shows a high rate of urea and ammonia. The level of these substances is dependant on the age of the snail and on its physiological state.
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