Requirement for amino acids in ontogeny of fish
Identifieur interne : 001218 ( Istex/Corpus ); précédent : 001217; suivant : 001219Requirement for amino acids in ontogeny of fish
Auteurs : Roderick Nigel Finn ; Hans J Rgen FyhnSource :
- Aquaculture Research [ 1355-557X ] ; 2010-04.
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- KwdEn :
Abstract
Amino acids are vital for all living organisms. During early fish ontogeny, they are important fuel molecules, signalling factors and major substrates for the synthesis of a wide range of bioactive molecules and proteins. Because the majority of fish eggs are cleidoic, i.e. closed free‐living systems following ovulation and activation, early development of fish depends on the maternal provision of amino acids during oogenesis. While more than 600 proteins have been identified in the growing oocytes of fish, the major vehicles for supplying amino acids to the growing oocyte before ovulation are the vitellogenins, of which many genes and multiple forms are known. Here we review the importance of amino acids for the intermediary metabolism of fish embryos and larvae, where amino acids have been shown to be the preferred catabolic substrate. Subsequently, we address the specialization of the lysosomal pathway involved in the uptake and degradation of yolk proteins. This latter pathway is specifically modified in the germline to facilitate the long‐term storage of egg yolk proteins. In marine teleosts, the degradative pathway may be activated before fertilization during oocyte maturation to release free amino acids for oocyte hydration and the acquisition of egg buoyancy. In other species, including freshwater fish, a more latent activation of acid hydrolases occurs after fertilization during the four phases of yolk resorption. The developmental contributions of the yolk syncytial layer, vitelline circulation and liver are essential components of the amino acid supply during fish ontogeny.
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DOI: 10.1111/j.1365-2109.2009.02220.x
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ISTEX:89526518ED4FAAA100D22BE4C371DA0244C5EE9CLe document en format XML
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During early fish ontogeny, they are important fuel molecules, signalling factors and major substrates for the synthesis of a wide range of bioactive molecules and proteins. Because the majority of fish eggs are cleidoic, i.e. closed free‐living systems following ovulation and activation, early development of fish depends on the maternal provision of amino acids during oogenesis. While more than 600 proteins have been identified in the growing oocytes of fish, the major vehicles for supplying amino acids to the growing oocyte before ovulation are the vitellogenins, of which many genes and multiple forms are known. Here we review the importance of amino acids for the intermediary metabolism of fish embryos and larvae, where amino acids have been shown to be the preferred catabolic substrate. Subsequently, we address the specialization of the lysosomal pathway involved in the uptake and degradation of yolk proteins. This latter pathway is specifically modified in the germline to facilitate the long‐term storage of egg yolk proteins. In marine teleosts, the degradative pathway may be activated before fertilization during oocyte maturation to release free amino acids for oocyte hydration and the acquisition of egg buoyancy. In other species, including freshwater fish, a more latent activation of acid hydrolases occurs after fertilization during the four phases of yolk resorption. The developmental contributions of the yolk syncytial layer, vitelline circulation and liver are essential components of the amino acid supply during fish ontogeny.</div></front></TEI><istex><corpusName>wiley</corpusName><author><json:item><name>Roderick Nigel Finn</name><affiliations><json:string>Department of Biology, Bergen High Technology Centre, University of Bergen, Bergen, Norway</json:string></affiliations></json:item><json:item><name>Hans Jørgen Fyhn</name><affiliations><json:string>Department of Biology, Bergen High Technology Centre, University of Bergen, Bergen, Norway</json:string></affiliations></json:item></author><subject><json:item><lang><json:string>eng</json:string></lang><value>ontogeny</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>amino acids</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>fuel preference</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>intermediary metabolism</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>aerobic</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>anaerobic</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>vitellogenin</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>yolk proteins</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>lipovitellin</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>phosvitin</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>von Willebrand factor</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>lysosome</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>endosome</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>cathepsins</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>protease</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>oocyte hydration</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>pelagic</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>benthic</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>yolk resorption</value></json:item></subject><articleId><json:string>ARE2220</json:string></articleId><language><json:string>eng</json:string></language><originalGenre><json:string>article</json:string></originalGenre><abstract>Amino acids are vital for all living organisms. 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This latter pathway is specifically modified in the germline to facilitate the long‐term storage of egg yolk proteins. In marine teleosts, the degradative pathway may be activated before fertilization during oocyte maturation to release free amino acids for oocyte hydration and the acquisition of egg buoyancy. In other species, including freshwater fish, a more latent activation of acid hydrolases occurs after fertilization during the four phases of yolk resorption. 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This latter pathway is specifically modified in the germline to facilitate the long‐term storage of egg yolk proteins. In marine teleosts, the degradative pathway may be activated before fertilization during oocyte maturation to release free amino acids for oocyte hydration and the acquisition of egg buoyancy. In other species, including freshwater fish, a more latent activation of acid hydrolases occurs after fertilization during the four phases of yolk resorption. 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Issue editors: K Dabrowski and R Hardy</title></titleGroup><numberingGroup><numbering type="journalVolume" number="41">41</numbering><numbering type="journalIssue">5</numbering></numberingGroup><coverDate startDate="2010-04">April 2010</coverDate></publicationMeta><publicationMeta level="unit" type="article" position="6" status="forIssue"><doi origin="wiley">10.1111/j.1365-2109.2009.02220.x</doi><idGroup><id type="unit" value="ARE2220"></id><id type="supplier" value="2220"></id></idGroup><countGroup><count type="pageTotal" number="33"></count></countGroup><titleGroup><title type="tocHeading1">Review Articles</title></titleGroup><copyright>© 2009 The Authors. 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During early fish ontogeny, they are important fuel molecules, signalling factors and major substrates for the synthesis of a wide range of bioactive molecules and proteins. Because the majority of fish eggs are cleidoic, i.e. closed free‐living systems following ovulation and activation, early development of fish depends on the maternal provision of amino acids during oogenesis. While more than 600 proteins have been identified in the growing oocytes of fish, the major vehicles for supplying amino acids to the growing oocyte before ovulation are the vitellogenins, of which many genes and multiple forms are known. Here we review the importance of amino acids for the intermediary metabolism of fish embryos and larvae, where amino acids have been shown to be the preferred catabolic substrate. Subsequently, we address the specialization of the lysosomal pathway involved in the uptake and degradation of yolk proteins. This latter pathway is specifically modified in the germline to facilitate the long‐term storage of egg yolk proteins. In marine teleosts, the degradative pathway may be activated before fertilization during oocyte maturation to release free amino acids for oocyte hydration and the acquisition of egg buoyancy. In other species, including freshwater fish, a more latent activation of acid hydrolases occurs after fertilization during the four phases of yolk resorption. The developmental contributions of the yolk syncytial layer, vitelline circulation and liver are essential components of the amino acid supply during fish ontogeny.</p></abstract></abstractGroup></contentMeta></header></component></istex:document></istex:metadataXml><mods version="3.6"><titleInfo lang="en"><title>Requirement for amino acids in ontogeny of fish</title></titleInfo><titleInfo type="abbreviated" lang="en"><title>Requirement for amino acids in ontogeny of fish</title></titleInfo><titleInfo type="alternative" contentType="CDATA" lang="en"><title>Requirement for amino acids in ontogeny of fish</title></titleInfo><name type="personal"><namePart type="given">Roderick Nigel</namePart><namePart type="family">Finn</namePart><affiliation>Department of Biology, Bergen High Technology Centre, University of Bergen, Bergen, Norway</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Hans Jørgen</namePart><namePart type="family">Fyhn</namePart><affiliation>Department of Biology, Bergen High Technology Centre, University of Bergen, Bergen, Norway</affiliation><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><genre type="article" displayLabel="article"></genre><originInfo><publisher>Blackwell Publishing Ltd</publisher><place><placeTerm type="text">Oxford, UK</placeTerm></place><dateIssued encoding="w3cdtf">2010-04</dateIssued><copyrightDate encoding="w3cdtf">2010</copyrightDate></originInfo><language><languageTerm type="code" authority="rfc3066">en</languageTerm><languageTerm type="code" authority="iso639-2b">eng</languageTerm></language><physicalDescription><internetMediaType>text/html</internetMediaType><extent unit="figures">16</extent><extent unit="references">279</extent><extent unit="words">22985</extent></physicalDescription><abstract lang="en">Amino acids are vital for all living organisms. During early fish ontogeny, they are important fuel molecules, signalling factors and major substrates for the synthesis of a wide range of bioactive molecules and proteins. Because the majority of fish eggs are cleidoic, i.e. closed free‐living systems following ovulation and activation, early development of fish depends on the maternal provision of amino acids during oogenesis. While more than 600 proteins have been identified in the growing oocytes of fish, the major vehicles for supplying amino acids to the growing oocyte before ovulation are the vitellogenins, of which many genes and multiple forms are known. Here we review the importance of amino acids for the intermediary metabolism of fish embryos and larvae, where amino acids have been shown to be the preferred catabolic substrate. Subsequently, we address the specialization of the lysosomal pathway involved in the uptake and degradation of yolk proteins. This latter pathway is specifically modified in the germline to facilitate the long‐term storage of egg yolk proteins. In marine teleosts, the degradative pathway may be activated before fertilization during oocyte maturation to release free amino acids for oocyte hydration and the acquisition of egg buoyancy. In other species, including freshwater fish, a more latent activation of acid hydrolases occurs after fertilization during the four phases of yolk resorption. The developmental contributions of the yolk syncytial layer, vitelline circulation and liver are essential components of the amino acid supply during fish ontogeny.</abstract><subject lang="en"><genre>keywords</genre><topic>ontogeny</topic><topic>amino acids</topic><topic>fuel preference</topic><topic>intermediary metabolism</topic><topic>aerobic</topic><topic>anaerobic</topic><topic>vitellogenin</topic><topic>yolk proteins</topic><topic>lipovitellin</topic><topic>phosvitin</topic><topic>von Willebrand factor</topic><topic>lysosome</topic><topic>endosome</topic><topic>cathepsins</topic><topic>protease</topic><topic>oocyte hydration</topic><topic>pelagic</topic><topic>benthic</topic><topic>yolk resorption</topic></subject><relatedItem type="host"><titleInfo><title>Aquaculture Research</title></titleInfo><genre type="journal">journal</genre><identifier type="ISSN">1355-557X</identifier><identifier type="eISSN">1365-2109</identifier><identifier type="DOI">10.1111/(ISSN)1365-2109</identifier><identifier type="PublisherID">ARE</identifier><part><date>2010</date><detail type="title"><title>Basic and Applied Aspects of Aquaculture Nutrition: Healthy Fish for Healthy Consumers, Sponsored by Organization for Economic Cooperation and Development (OECD) Krakow, Poland, September 17‐18, 2008 Invited Papers. Issue editors: K Dabrowski and R Hardy</title></detail><detail type="volume"><caption>vol.</caption><number>41</number></detail><detail type="issue"><caption>no.</caption><number>5</number></detail><extent unit="pages"><start>684</start><end>716</end><total>33</total></extent></part></relatedItem><identifier type="istex">89526518ED4FAAA100D22BE4C371DA0244C5EE9C</identifier><identifier type="DOI">10.1111/j.1365-2109.2009.02220.x</identifier><identifier type="ArticleID">ARE2220</identifier><accessCondition type="use and reproduction" contentType="copyright">© 2009 The Authors. Journal Compilation © 2009 Blackwell Publishing Ltd</accessCondition><recordInfo><recordContentSource>WILEY</recordContentSource><recordOrigin>Blackwell Publishing Ltd</recordOrigin></recordInfo></mods></metadata><serie></serie></istex></record>Pour manipuler ce document sous Unix (Dilib)
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