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dc.contributor.author
Pasquevich, María Yanina
dc.contributor.author
Dreon, Marcos Sebastian
dc.contributor.author
Lavarias, Sabrina Maria Luisa
dc.contributor.author
Heras, Horacio
dc.date.available
2017-09-21T21:31:37Z
dc.date.issued
2011-08-26
dc.identifier.citation
Pasquevich, María Yanina; Dreon, Marcos Sebastian; Lavarias, Sabrina Maria Luisa; Heras, Horacio; Triacylglycerol catabolism in the prawn Macrobrachium borellii (Crustacea: Palaemoniade); Elsevier Science; Comparative Biochemistry And Physiology. Part B, Biochemistry & Molecular Biology.; 160; 4; 26-8-2011; 201-207
dc.identifier.issn
1096-4959
dc.identifier.uri
http://hdl.handle.net/11336/24893
dc.description.abstract
While invertebrates store neutral lipids as their major energy source, little is known about triacylglycerol (TAG) class composition and their differential catabolism in aquatic arthropods. This study focuses on the composition of the main energy source and its catabolism by lipase from the midgut gland (hepatopancreas) of the crustacean Macrobrachium borellii. Silver-ion thin-layer chromatography of prawn large TAG deposit (80% of total lipids) and its subsequent fatty acid analysis by gas chromatography allowed the identification of 4 major fractions. These are composed of fatty acids of decreasing unsaturation and carbon chain length, the predominant being 18:1n-9. Fraction I, the most unsaturated one, contained mainly 20:5n-3; fraction II 18:2n-6; fraction III 18:1n-9 while the most saturated fraction contained mostly 16:0. Hepatopancreas main lipase (Mr 72 kDa) cross-reacted with polyclonal antibodies against insect lipase, was not dependent on the presence of Ca2+ and had an optimum activity at 40 °C and pH 8.0. Kinetic analysis showed a Michaelis? Menten behavior. A substrate competition assay evidenced lipase specificity following the order: 18:1n- 9-TAGNPUFA-enriched-TAGN16:0-TAG different from that in vertebrates. These data indicate there is a reasonable correspondence between the fatty acid composition of TAG and the substrate specificity of lipase, which may be an important factor in determining which fatty acids are mobilized during lipolysis for oxidation in crustaceans.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Lipase
dc.subject
Triacylglycerol
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Lipid Metabolism
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Crustacean
dc.subject.classification
Bioquímica y Biología Molecular
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Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Triacylglycerol catabolism in the prawn Macrobrachium borellii (Crustacea: Palaemoniade)
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-09-19T14:35:36Z
dc.journal.volume
160
dc.journal.number
4
dc.journal.pagination
201-207
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Pasquevich, María Yanina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Bioquímicas de La Plata "Prof. Dr. Rodolfo R. Brenner". Universidad Nacional de la Plata. Facultad de Ciencias Médicas. Instituto de Investigaciones Bioquímicas de La Plata ; Argentina. Universidad Nacional de la Plata. Facultad de Ciencias Médicas; Argentina
dc.description.fil
Fil: Dreon, Marcos Sebastian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Bioquímicas de La Plata "Prof. Dr. Rodolfo R. Brenner". Universidad Nacional de la Plata. Facultad de Ciencias Médicas. Instituto de Investigaciones Bioquímicas de La Plata ; Argentina. Universidad Nacional de la Plata. Facultad de Ciencias Médicas; Argentina
dc.description.fil
Fil: Lavarias, Sabrina Maria Luisa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Limnología "Dr. Raúl A. Ringuelet". Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Instituto de Limnología; Argentina. Universidad Nacional de la Plata. Facultad de Ciencias Médicas; Argentina
dc.description.fil
Fil: Heras, Horacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Bioquímicas de La Plata "Prof. Dr. Rodolfo R. Brenner". Universidad Nacional de la Plata. Facultad de Ciencias Médicas. Instituto de Investigaciones Bioquímicas de La Plata ; Argentina
dc.journal.title
Comparative Biochemistry And Physiology. Part B, Biochemistry & Molecular Biology.
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S1096495911001734
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.cbpb.2011.08.006
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