The role of lipids during embryonic development of the euphausiids Euphausia pacifica and Thysanoessa spinifera SCIE SCOPUS

DC Field Value Language
dc.contributor.author Ju, Se-Jong -
dc.contributor.author Harvey, H. Rodger -
dc.contributor.author Gomez-Gutierrez, Jaime -
dc.contributor.author Peterson, William T. -
dc.date.accessioned 2020-04-20T12:55:16Z -
dc.date.available 2020-04-20T12:55:16Z -
dc.date.created 2020-02-04 -
dc.date.issued 2006-09 -
dc.identifier.issn 0024-3590 -
dc.identifier.uri https://sciwatch.kiost.ac.kr/handle/2020.kiost/4844 -
dc.description.abstract To understand the role of lipids during early embryogenesis, major lipid classes together with individual fatty-acid and sterol composition were determined in embryos from multiple developmental stages of the euphausiids Euphausia pacifica and Thysanoessa spinifera. Average lipid content in embryos of E. pacifica and T. spinifera from the earliest stage (multicell) were 4.45 and 3.69 mu g embryo(-1), respectively. During development, the lipid content decreased at similar rates in the embryos of both species. In contrast to many crustacean eggs, phospholipids were the dominant lipid class in all embryonic stages, with decreasing concentrations seen during development. Individual fatty acids and sterols showed selective utilization during early developmental stages. The dominant fatty acids were 16:0 and 16:1 omega 7 and 20:5 omega 3, with most polyunsaturated fatty acids preferentially metabolized throughout early stages. An exception was 22:6 omega 3, which remained near constant through all stages. Cholesterol was the dominant sterol (> 82% of total sterols) in embryos, with only minor changes during development. The appearance of algal sterols and fatty alcohols, including phytol, in T. spinifera embryos suggests that considerable amounts of algal lipids are directly allocated to eggs during vitellogenesis. Despite the substantial changes in lipid amount and composition during embryo development, the presence of phospholipids as the dominate lipid store acts to moderate changes in egg-sinking rate for both species until the late (early and late limb-bud) stages of development. -
dc.description.uri 1 -
dc.language English -
dc.publisher WILEY -
dc.subject ANTARCTIC KRILL -
dc.subject SINKING RATES -
dc.subject FATTY-ACID -
dc.subject SUPERBA -
dc.subject EGGS -
dc.subject CRYSTALLOROPHIAS -
dc.subject DENSITY -
dc.subject PRESSURE -
dc.subject OCEAN -
dc.title The role of lipids during embryonic development of the euphausiids Euphausia pacifica and Thysanoessa spinifera -
dc.type Article -
dc.citation.endPage 2408 -
dc.citation.startPage 2398 -
dc.citation.title LIMNOLOGY AND OCEANOGRAPHY -
dc.citation.volume 51 -
dc.citation.number 5 -
dc.contributor.alternativeName 주세종 -
dc.identifier.bibliographicCitation LIMNOLOGY AND OCEANOGRAPHY, v.51, no.5, pp.2398 - 2408 -
dc.identifier.doi 10.4319/lo.2006.51.5.2398 -
dc.identifier.wosid 000240673800042 -
dc.type.docType Article -
dc.description.journalClass 1 -
dc.subject.keywordPlus ANTARCTIC KRILL -
dc.subject.keywordPlus SINKING RATES -
dc.subject.keywordPlus FATTY-ACID -
dc.subject.keywordPlus SUPERBA -
dc.subject.keywordPlus EGGS -
dc.subject.keywordPlus CRYSTALLOROPHIAS -
dc.subject.keywordPlus DENSITY -
dc.subject.keywordPlus PRESSURE -
dc.subject.keywordPlus OCEAN -
dc.relation.journalWebOfScienceCategory Limnology -
dc.relation.journalWebOfScienceCategory Oceanography -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
dc.relation.journalResearchArea Marine & Freshwater Biology -
dc.relation.journalResearchArea Oceanography -
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