1-O-Alkylglyceryl Ether Lipids of the Gut Walls and Contents of an Abyssal Holothurian (Oneirophanta mutabilis)
Document title: 1-O-Alkylglyceryl Ether Lipids of the Gut Walls and Contents of an Abyssal Holothurian (Oneirophanta mutabilis)
Journal: Journal of the Brazilian Chemical Society
Database: PERIÓDICA
System number: 000311134
ISSN: 0103-5053
Authors: 1
2
Institutions: 1University of Liverpool, Department of Earth Sciences, Liverpool, Lancashire. Reino Unido
2Southampton Oceanography Centre, Southampton, Hampshire. Reino Unido
Year:
Season: Sep
Volumen: 13
Number: 5
Pages: 653-657
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Experimental
English abstract A study of the glyceryl ether composition of free lipids of gut walls and contents of an abyssal holothurian species, Oneirophanta mutabilis has been carried out. A series of saturated and unsaturated 1-O-alkylglyceryl ethers with alkyl side chains ranging from C15 to C21 were detected inthe gut walls and contents of O. mutabilis. Glyceryl ethers accounted for 5-12% of the total free lipids contents. Foregut, midgut and hindgut walls and contents have identical 1-O-alkylglyceryl ether compositions. The C16:0, C16:1, C17:0, C18:0 and C18:1 are the main glyceryl ethers with C18:0 being dominant. The total organic carbon (TOC) and nitrogen (N) contents were also evaluated in gut contents of the digestive tract of O. mutabalis and these decreased from foregut to hindgut. The average assimilation efficiencies were estimated to be 40 and 55% for TOC and N respectively
Portuguese abstract Um estudo de éter de glicerol foi realizado nos lipídios livres da membrana e do conteúdo do aparelho digestivo de uma espécie de holothuria abissal, Oneirophanta mutabilis. Foi detectada uma série desses compostos, saturados e insaturados, variando de C15 a C21, totalizando de 5-12 % dos lipídios das amostras investigadas. Tanto as amostras das membranas quanto às dos conteúdos analisadas mostraram composições similares, sendo C16:0, C16:1, C17:0, C18:0 e C18:1 os componentes principais e, entre eles, C18:0 o composto dominante para essa espécie de holoturia. O teor do carbono orgânico total (TOC) e de nitrogênio (N) também foram avaliados nas amostras de conteúdos do trato digestivo e decresceram do esôfago para o reto. A média da eficiência de assimilação média foi estimada em 40 e 55% para TOC e N respectivamente
Disciplines: Química,
Biología
Keyword: Química orgánica,
Invertebrados marinos,
Orto-alquilglicerol éter,
Oneirophanta mutabilis,
Holothuroidea
Keyword: Chemistry,
Biology,
Organic chemistry,
Marine invertebrates,
Ortho-alkylglyceryl ether,
Oneirophanta mutabilis,
Holothuroidea
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