The eggs of the apple snail Pomacea maculata are defended by indigestible polysaccharides and toxic proteins

Autores
Giglio, Matías Leonel; Ituarte, Santiago; Pasquevich, María Yanina; Heras, Horacio
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The freshwater snails Pomacea Perry, 1810 lay conspicuous aerial egg clutches that are ignored by most predators. Egg biochemical defenses in the apple snail Pomacea canaliculata (Lamarck, 1822) are provided by multifunctional proteins. We analyzed the eggs of a sympatric species, Pomacea maculata Perry, 1810, studying the gross composition, toxicity, hemagglutinating activity, and its antinutritive and antidigestive properties. Eggs are mostly composed of polysaccharides (mainly galactogen) and proteins, followed by lipids and nonsoluble calcium. Two perivitellins account for ∼85% dry mass of the egg protein. The major lipids are phospholipids and sterols. A suite of potential defenses was determined, including strong lethal neurotoxicity on mice and moderate antidigestive and lectin activities. Remarkably, their polysaccharides were refractive to in vitro digestion by digestive glycosidases. This study characterized ∼99% of egg composition and identified multiple potential defenses, provided not only by proteins but also by polysaccharides. This is the first evidence to our knowledge that reserve sugars may be involved in defenses, giving further insight into the unusual reproductive strategy of these well-defended snail eggs.
Fil: Giglio, Matías Leonel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Bioquímicas de La Plata ; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; Argentina
Fil: Ituarte, Santiago. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Bioquímicas de La Plata ; Argentina
Fil: Pasquevich, María Yanina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Bioquímicas de La Plata ; Argentina
Fil: Heras, Horacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Bioquímicas de La Plata ; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; Argentina
Materia
Animal Defense
Egg Composition
Indigestible Polysaccharide
Protease Inhibitors
Antinutritive
Antidigestive
Apple Snails
Pomacea Maculata
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/49014
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/49014
network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling The eggs of the apple snail Pomacea maculata are defended by indigestible polysaccharides and toxic proteinsGiglio, Matías LeonelItuarte, SantiagoPasquevich, María YaninaHeras, HoracioAnimal DefenseEgg CompositionIndigestible PolysaccharideProtease InhibitorsAntinutritiveAntidigestiveApple SnailsPomacea Maculatahttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The freshwater snails Pomacea Perry, 1810 lay conspicuous aerial egg clutches that are ignored by most predators. Egg biochemical defenses in the apple snail Pomacea canaliculata (Lamarck, 1822) are provided by multifunctional proteins. We analyzed the eggs of a sympatric species, Pomacea maculata Perry, 1810, studying the gross composition, toxicity, hemagglutinating activity, and its antinutritive and antidigestive properties. Eggs are mostly composed of polysaccharides (mainly galactogen) and proteins, followed by lipids and nonsoluble calcium. Two perivitellins account for ∼85% dry mass of the egg protein. The major lipids are phospholipids and sterols. A suite of potential defenses was determined, including strong lethal neurotoxicity on mice and moderate antidigestive and lectin activities. Remarkably, their polysaccharides were refractive to in vitro digestion by digestive glycosidases. This study characterized ∼99% of egg composition and identified multiple potential defenses, provided not only by proteins but also by polysaccharides. This is the first evidence to our knowledge that reserve sugars may be involved in defenses, giving further insight into the unusual reproductive strategy of these well-defended snail eggs.Fil: Giglio, Matías Leonel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Bioquímicas de La Plata ; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; ArgentinaFil: Ituarte, Santiago. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Bioquímicas de La Plata ; ArgentinaFil: Pasquevich, María Yanina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Bioquímicas de La Plata ; ArgentinaFil: Heras, Horacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Bioquímicas de La Plata ; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; ArgentinaNational Research Council Canada-NRC Research Press2016-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/49014Giglio, Matías Leonel; Ituarte, Santiago; Pasquevich, María Yanina; Heras, Horacio; The eggs of the apple snail Pomacea maculata are defended by indigestible polysaccharides and toxic proteins; National Research Council Canada-NRC Research Press; Canadian Journal of Zoology; 94; 11; 11-2016; 777-7850008-4301CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.nrcresearchpress.com/doi/abs/10.1139/cjz-2016-0049#.WyfUPlVKiUkinfo:eu-repo/semantics/altIdentifier/doi/10.1139/cjz-2016-0049info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:14:09Zoai:ri.conicet.gov.ar:11336/49014instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 11:14:10.065CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv The eggs of the apple snail Pomacea maculata are defended by indigestible polysaccharides and toxic proteins
title The eggs of the apple snail Pomacea maculata are defended by indigestible polysaccharides and toxic proteins
spellingShingle The eggs of the apple snail Pomacea maculata are defended by indigestible polysaccharides and toxic proteins
Giglio, Matías Leonel
Animal Defense
Egg Composition
Indigestible Polysaccharide
Protease Inhibitors
Antinutritive
Antidigestive
Apple Snails
Pomacea Maculata
title_short The eggs of the apple snail Pomacea maculata are defended by indigestible polysaccharides and toxic proteins
title_full The eggs of the apple snail Pomacea maculata are defended by indigestible polysaccharides and toxic proteins
title_fullStr The eggs of the apple snail Pomacea maculata are defended by indigestible polysaccharides and toxic proteins
title_full_unstemmed The eggs of the apple snail Pomacea maculata are defended by indigestible polysaccharides and toxic proteins
title_sort The eggs of the apple snail Pomacea maculata are defended by indigestible polysaccharides and toxic proteins
dc.creator.none.fl_str_mv Giglio, Matías Leonel
Ituarte, Santiago
Pasquevich, María Yanina
Heras, Horacio
author Giglio, Matías Leonel
author_facet Giglio, Matías Leonel
Ituarte, Santiago
Pasquevich, María Yanina
Heras, Horacio
author_role author
author2 Ituarte, Santiago
Pasquevich, María Yanina
Heras, Horacio
author2_role author
author
author
dc.subject.none.fl_str_mv Animal Defense
Egg Composition
Indigestible Polysaccharide
Protease Inhibitors
Antinutritive
Antidigestive
Apple Snails
Pomacea Maculata
topic Animal Defense
Egg Composition
Indigestible Polysaccharide
Protease Inhibitors
Antinutritive
Antidigestive
Apple Snails
Pomacea Maculata
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The freshwater snails Pomacea Perry, 1810 lay conspicuous aerial egg clutches that are ignored by most predators. Egg biochemical defenses in the apple snail Pomacea canaliculata (Lamarck, 1822) are provided by multifunctional proteins. We analyzed the eggs of a sympatric species, Pomacea maculata Perry, 1810, studying the gross composition, toxicity, hemagglutinating activity, and its antinutritive and antidigestive properties. Eggs are mostly composed of polysaccharides (mainly galactogen) and proteins, followed by lipids and nonsoluble calcium. Two perivitellins account for ∼85% dry mass of the egg protein. The major lipids are phospholipids and sterols. A suite of potential defenses was determined, including strong lethal neurotoxicity on mice and moderate antidigestive and lectin activities. Remarkably, their polysaccharides were refractive to in vitro digestion by digestive glycosidases. This study characterized ∼99% of egg composition and identified multiple potential defenses, provided not only by proteins but also by polysaccharides. This is the first evidence to our knowledge that reserve sugars may be involved in defenses, giving further insight into the unusual reproductive strategy of these well-defended snail eggs.
Fil: Giglio, Matías Leonel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Bioquímicas de La Plata ; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; Argentina
Fil: Ituarte, Santiago. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Bioquímicas de La Plata ; Argentina
Fil: Pasquevich, María Yanina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Bioquímicas de La Plata ; Argentina
Fil: Heras, Horacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Bioquímicas de La Plata ; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; Argentina
description The freshwater snails Pomacea Perry, 1810 lay conspicuous aerial egg clutches that are ignored by most predators. Egg biochemical defenses in the apple snail Pomacea canaliculata (Lamarck, 1822) are provided by multifunctional proteins. We analyzed the eggs of a sympatric species, Pomacea maculata Perry, 1810, studying the gross composition, toxicity, hemagglutinating activity, and its antinutritive and antidigestive properties. Eggs are mostly composed of polysaccharides (mainly galactogen) and proteins, followed by lipids and nonsoluble calcium. Two perivitellins account for ∼85% dry mass of the egg protein. The major lipids are phospholipids and sterols. A suite of potential defenses was determined, including strong lethal neurotoxicity on mice and moderate antidigestive and lectin activities. Remarkably, their polysaccharides were refractive to in vitro digestion by digestive glycosidases. This study characterized ∼99% of egg composition and identified multiple potential defenses, provided not only by proteins but also by polysaccharides. This is the first evidence to our knowledge that reserve sugars may be involved in defenses, giving further insight into the unusual reproductive strategy of these well-defended snail eggs.
publishDate 2016
dc.date.none.fl_str_mv 2016-11
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
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://hdl.handle.net/11336/49014
Giglio, Matías Leonel; Ituarte, Santiago; Pasquevich, María Yanina; Heras, Horacio; The eggs of the apple snail Pomacea maculata are defended by indigestible polysaccharides and toxic proteins; National Research Council Canada-NRC Research Press; Canadian Journal of Zoology; 94; 11; 11-2016; 777-785
0008-4301
CONICET Digital
CONICET
url http://hdl.handle.net/11336/49014
identifier_str_mv Giglio, Matías Leonel; Ituarte, Santiago; Pasquevich, María Yanina; Heras, Horacio; The eggs of the apple snail Pomacea maculata are defended by indigestible polysaccharides and toxic proteins; National Research Council Canada-NRC Research Press; Canadian Journal of Zoology; 94; 11; 11-2016; 777-785
0008-4301
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.nrcresearchpress.com/doi/abs/10.1139/cjz-2016-0049#.WyfUPlVKiUk
info:eu-repo/semantics/altIdentifier/doi/10.1139/cjz-2016-0049
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv National Research Council Canada-NRC Research Press
publisher.none.fl_str_mv National Research Council Canada-NRC Research Press
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.982451

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