Effect of the environment and fasting on the lipid and fatty acid composition of Diplodom patagonicus

Autores
Pollero, Ricardo José; Brenner, Rodolfo Roberto
Año de publicación
1981
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Some effects of food, habitat and temperature on the lipid composition of a freshwater mollusk, Diplodom patagonicus, were studied. Animals kept and fasted up to 60 days in an aquarium at 9 C and 20 C showed a decrease of the total lipid content that corresponded to a decrease of triacylglycerols and diacylglycerol ethers. This decrease evoked an increase of polar-to-nonpolar lipid ratio. However, no significant change in the total fatty acid composition was shown. Moreover, a decrease of temperature from 20 C to 9 C decreased the incorporation of labeled linoleic and α-linolenic acid into the lipids, but did not modify the unsaturated: saturated acid ratio of the mollusk lipids during this period. A change of habitat from lake to estuary changed very significantly the fatty acid composition of the animal. The ω6 acids, linoleic and arachidonic, typical of D. patagonicus living in the lake, were partially replaced by ω3 acids. That this change was due to a change of food composition was indicated by the fatty acids of corresponding sediments. Therefore, the fatty acid composition of D. patagonicus is highly sensitive to food composition and varies little with temperature and seasonal changes.
Facultad de Ciencias Médicas
Materia
Ciencias Médicas
Diplodom patagonicus
Lipid content
Acid composition
Food, habitat and temperature
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/136610
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/136610
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Effect of the environment and fasting on the lipid and fatty acid composition of Diplodom patagonicusPollero, Ricardo JoséBrenner, Rodolfo RobertoCiencias MédicasDiplodom patagonicusLipid contentAcid compositionFood, habitat and temperatureSome effects of food, habitat and temperature on the lipid composition of a freshwater mollusk, Diplodom patagonicus, were studied. Animals kept and fasted up to 60 days in an aquarium at 9 C and 20 C showed a decrease of the total lipid content that corresponded to a decrease of triacylglycerols and diacylglycerol ethers. This decrease evoked an increase of polar-to-nonpolar lipid ratio. However, no significant change in the total fatty acid composition was shown. Moreover, a decrease of temperature from 20 C to 9 C decreased the incorporation of labeled linoleic and α-linolenic acid into the lipids, but did not modify the unsaturated: saturated acid ratio of the mollusk lipids during this period. A change of habitat from lake to estuary changed very significantly the fatty acid composition of the animal. The ω6 acids, linoleic and arachidonic, typical of D. patagonicus living in the lake, were partially replaced by ω3 acids. That this change was due to a change of food composition was indicated by the fatty acids of corresponding sediments. Therefore, the fatty acid composition of D. patagonicus is highly sensitive to food composition and varies little with temperature and seasonal changes.Facultad de Ciencias Médicas1981info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf685-690http://sedici.unlp.edu.ar/handle/10915/136610enginfo:eu-repo/semantics/altIdentifier/issn/0024-4201info:eu-repo/semantics/altIdentifier/issn/1558-9307info:eu-repo/semantics/altIdentifier/doi/10.1007/bf02535064info:eu-repo/semantics/altIdentifier/pmid/27519236info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:32:12Zoai:sedici.unlp.edu.ar:10915/136610Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:32:13.054SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Effect of the environment and fasting on the lipid and fatty acid composition of Diplodom patagonicus
title Effect of the environment and fasting on the lipid and fatty acid composition of Diplodom patagonicus
spellingShingle Effect of the environment and fasting on the lipid and fatty acid composition of Diplodom patagonicus
Pollero, Ricardo José
Ciencias Médicas
Diplodom patagonicus
Lipid content
Acid composition
Food, habitat and temperature
title_short Effect of the environment and fasting on the lipid and fatty acid composition of Diplodom patagonicus
title_full Effect of the environment and fasting on the lipid and fatty acid composition of Diplodom patagonicus
title_fullStr Effect of the environment and fasting on the lipid and fatty acid composition of Diplodom patagonicus
title_full_unstemmed Effect of the environment and fasting on the lipid and fatty acid composition of Diplodom patagonicus
title_sort Effect of the environment and fasting on the lipid and fatty acid composition of Diplodom patagonicus
dc.creator.none.fl_str_mv Pollero, Ricardo José
Brenner, Rodolfo Roberto
author Pollero, Ricardo José
author_facet Pollero, Ricardo José
Brenner, Rodolfo Roberto
author_role author
author2 Brenner, Rodolfo Roberto
author2_role author
dc.subject.none.fl_str_mv Ciencias Médicas
Diplodom patagonicus
Lipid content
Acid composition
Food, habitat and temperature
topic Ciencias Médicas
Diplodom patagonicus
Lipid content
Acid composition
Food, habitat and temperature
dc.description.none.fl_txt_mv Some effects of food, habitat and temperature on the lipid composition of a freshwater mollusk, Diplodom patagonicus, were studied. Animals kept and fasted up to 60 days in an aquarium at 9 C and 20 C showed a decrease of the total lipid content that corresponded to a decrease of triacylglycerols and diacylglycerol ethers. This decrease evoked an increase of polar-to-nonpolar lipid ratio. However, no significant change in the total fatty acid composition was shown. Moreover, a decrease of temperature from 20 C to 9 C decreased the incorporation of labeled linoleic and α-linolenic acid into the lipids, but did not modify the unsaturated: saturated acid ratio of the mollusk lipids during this period. A change of habitat from lake to estuary changed very significantly the fatty acid composition of the animal. The ω6 acids, linoleic and arachidonic, typical of D. patagonicus living in the lake, were partially replaced by ω3 acids. That this change was due to a change of food composition was indicated by the fatty acids of corresponding sediments. Therefore, the fatty acid composition of D. patagonicus is highly sensitive to food composition and varies little with temperature and seasonal changes.
Facultad de Ciencias Médicas
description Some effects of food, habitat and temperature on the lipid composition of a freshwater mollusk, Diplodom patagonicus, were studied. Animals kept and fasted up to 60 days in an aquarium at 9 C and 20 C showed a decrease of the total lipid content that corresponded to a decrease of triacylglycerols and diacylglycerol ethers. This decrease evoked an increase of polar-to-nonpolar lipid ratio. However, no significant change in the total fatty acid composition was shown. Moreover, a decrease of temperature from 20 C to 9 C decreased the incorporation of labeled linoleic and α-linolenic acid into the lipids, but did not modify the unsaturated: saturated acid ratio of the mollusk lipids during this period. A change of habitat from lake to estuary changed very significantly the fatty acid composition of the animal. The ω6 acids, linoleic and arachidonic, typical of D. patagonicus living in the lake, were partially replaced by ω3 acids. That this change was due to a change of food composition was indicated by the fatty acids of corresponding sediments. Therefore, the fatty acid composition of D. patagonicus is highly sensitive to food composition and varies little with temperature and seasonal changes.
publishDate 1981
dc.date.none.fl_str_mv 1981
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/136610
url http://sedici.unlp.edu.ar/handle/10915/136610
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0024-4201
info:eu-repo/semantics/altIdentifier/issn/1558-9307
info:eu-repo/semantics/altIdentifier/doi/10.1007/bf02535064
info:eu-repo/semantics/altIdentifier/pmid/27519236
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
685-690
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 13.070432

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