Xylogalactans from Lithothamnion heterocladum, a crustose member of the Corallinales (Rhodophyta)

Autores
Navarro, Diego Alberto; Ricci, Alejandra Marcela; Rodríguez, María Cecilia; Stortz, Carlos Arturo
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The main polysaccharides from the red seaweed Lithothamnion heterocladum share the general characteristics of corallinans (agar-like xylogalactans), even though this seaweed is crustose, whereas those previously studied in detail were articulated seaweeds. After fractionation by cetrimide precipitation, several fractions were separated and characterized by sugar composition, other components, methylation, ethylation, desulfation-methylation, and NMR analyses. The main group of fractions carry the agaran disaccharidic repeating unit [→3)-β-d-Galp-(1 → 4)-α-l-Gal-(1→] substituted mainly on O-6 of the β-d-Gal unit by β-xylosyl side stubs, and less with sulfate or methoxyl groups, and also on O-2 of the α-l-Gal unit with methoxyl or sulfate, or less on O-3 of the same unit with methoxyl groups. These features are common to those of the polysaccharides of the four members of the order Corallinales already studied. However, a sugar not very common to the order appears in substantial proportions: 2,3-di-O-methyl-d-galactose, which acts as a side stub. Another peculiar issue is the presence of significant amounts of 4-linked α-l-Gal units glycosylated on O-6 or O-3. These results confirm that within a common pattern of corallinean xylogalactans, each species has minor characteristics of their own.
Fil: Navarro, Diego Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Centro de Investigaciones en Hidratos de Carbono. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Centro de Investigaciones en Hidratos de Carbono; Argentina
Fil: Ricci, Alejandra Marcela. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Centro de Investigaciones en Hidratos de Carbono. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Centro de Investigaciones en Hidratos de Carbono; Argentina
Fil: Rodríguez, María Cecilia. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Stortz, Carlos Arturo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Centro de Investigaciones en Hidratos de Carbono. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Centro de Investigaciones en Hidratos de Carbono; Argentina
Materia
2,3-Di-O- Methylgalactose
Agaran
Corallinales
Lithothamnion
Rhodophyta
Xylogalactans
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/68726
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/68726
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Xylogalactans from Lithothamnion heterocladum, a crustose member of the Corallinales (Rhodophyta)Navarro, Diego AlbertoRicci, Alejandra MarcelaRodríguez, María CeciliaStortz, Carlos Arturo2,3-Di-O- MethylgalactoseAgaranCorallinalesLithothamnionRhodophytaXylogalactanshttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The main polysaccharides from the red seaweed Lithothamnion heterocladum share the general characteristics of corallinans (agar-like xylogalactans), even though this seaweed is crustose, whereas those previously studied in detail were articulated seaweeds. After fractionation by cetrimide precipitation, several fractions were separated and characterized by sugar composition, other components, methylation, ethylation, desulfation-methylation, and NMR analyses. The main group of fractions carry the agaran disaccharidic repeating unit [→3)-β-d-Galp-(1 → 4)-α-l-Gal-(1→] substituted mainly on O-6 of the β-d-Gal unit by β-xylosyl side stubs, and less with sulfate or methoxyl groups, and also on O-2 of the α-l-Gal unit with methoxyl or sulfate, or less on O-3 of the same unit with methoxyl groups. These features are common to those of the polysaccharides of the four members of the order Corallinales already studied. However, a sugar not very common to the order appears in substantial proportions: 2,3-di-O-methyl-d-galactose, which acts as a side stub. Another peculiar issue is the presence of significant amounts of 4-linked α-l-Gal units glycosylated on O-6 or O-3. These results confirm that within a common pattern of corallinean xylogalactans, each species has minor characteristics of their own.Fil: Navarro, Diego Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Centro de Investigaciones en Hidratos de Carbono. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Centro de Investigaciones en Hidratos de Carbono; ArgentinaFil: Ricci, Alejandra Marcela. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Centro de Investigaciones en Hidratos de Carbono. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Centro de Investigaciones en Hidratos de Carbono; ArgentinaFil: Rodríguez, María Cecilia. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Stortz, Carlos Arturo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Centro de Investigaciones en Hidratos de Carbono. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Centro de Investigaciones en Hidratos de Carbono; ArgentinaElsevier2011-03info: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/11336/68726Navarro, Diego Alberto; Ricci, Alejandra Marcela; Rodríguez, María Cecilia; Stortz, Carlos Arturo; Xylogalactans from Lithothamnion heterocladum, a crustose member of the Corallinales (Rhodophyta); Elsevier; Carbohydrate Polymers; 84; 3; 3-2011; 944-9510144-8617CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.carbpol.2010.12.048info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0144861710010350info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:09:03Zoai:ri.conicet.gov.ar:11336/68726instacron: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 11:09:03.557CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Xylogalactans from Lithothamnion heterocladum, a crustose member of the Corallinales (Rhodophyta)
title Xylogalactans from Lithothamnion heterocladum, a crustose member of the Corallinales (Rhodophyta)
spellingShingle Xylogalactans from Lithothamnion heterocladum, a crustose member of the Corallinales (Rhodophyta)
Navarro, Diego Alberto
2,3-Di-O- Methylgalactose
Agaran
Corallinales
Lithothamnion
Rhodophyta
Xylogalactans
title_short Xylogalactans from Lithothamnion heterocladum, a crustose member of the Corallinales (Rhodophyta)
title_full Xylogalactans from Lithothamnion heterocladum, a crustose member of the Corallinales (Rhodophyta)
title_fullStr Xylogalactans from Lithothamnion heterocladum, a crustose member of the Corallinales (Rhodophyta)
title_full_unstemmed Xylogalactans from Lithothamnion heterocladum, a crustose member of the Corallinales (Rhodophyta)
title_sort Xylogalactans from Lithothamnion heterocladum, a crustose member of the Corallinales (Rhodophyta)
dc.creator.none.fl_str_mv Navarro, Diego Alberto
Ricci, Alejandra Marcela
Rodríguez, María Cecilia
Stortz, Carlos Arturo
author Navarro, Diego Alberto
author_facet Navarro, Diego Alberto
Ricci, Alejandra Marcela
Rodríguez, María Cecilia
Stortz, Carlos Arturo
author_role author
author2 Ricci, Alejandra Marcela
Rodríguez, María Cecilia
Stortz, Carlos Arturo
author2_role author
author
author
dc.subject.none.fl_str_mv 2,3-Di-O- Methylgalactose
Agaran
Corallinales
Lithothamnion
Rhodophyta
Xylogalactans
topic 2,3-Di-O- Methylgalactose
Agaran
Corallinales
Lithothamnion
Rhodophyta
Xylogalactans
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The main polysaccharides from the red seaweed Lithothamnion heterocladum share the general characteristics of corallinans (agar-like xylogalactans), even though this seaweed is crustose, whereas those previously studied in detail were articulated seaweeds. After fractionation by cetrimide precipitation, several fractions were separated and characterized by sugar composition, other components, methylation, ethylation, desulfation-methylation, and NMR analyses. The main group of fractions carry the agaran disaccharidic repeating unit [→3)-β-d-Galp-(1 → 4)-α-l-Gal-(1→] substituted mainly on O-6 of the β-d-Gal unit by β-xylosyl side stubs, and less with sulfate or methoxyl groups, and also on O-2 of the α-l-Gal unit with methoxyl or sulfate, or less on O-3 of the same unit with methoxyl groups. These features are common to those of the polysaccharides of the four members of the order Corallinales already studied. However, a sugar not very common to the order appears in substantial proportions: 2,3-di-O-methyl-d-galactose, which acts as a side stub. Another peculiar issue is the presence of significant amounts of 4-linked α-l-Gal units glycosylated on O-6 or O-3. These results confirm that within a common pattern of corallinean xylogalactans, each species has minor characteristics of their own.
Fil: Navarro, Diego Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Centro de Investigaciones en Hidratos de Carbono. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Centro de Investigaciones en Hidratos de Carbono; Argentina
Fil: Ricci, Alejandra Marcela. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Centro de Investigaciones en Hidratos de Carbono. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Centro de Investigaciones en Hidratos de Carbono; Argentina
Fil: Rodríguez, María Cecilia. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Stortz, Carlos Arturo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Centro de Investigaciones en Hidratos de Carbono. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Centro de Investigaciones en Hidratos de Carbono; Argentina
description The main polysaccharides from the red seaweed Lithothamnion heterocladum share the general characteristics of corallinans (agar-like xylogalactans), even though this seaweed is crustose, whereas those previously studied in detail were articulated seaweeds. After fractionation by cetrimide precipitation, several fractions were separated and characterized by sugar composition, other components, methylation, ethylation, desulfation-methylation, and NMR analyses. The main group of fractions carry the agaran disaccharidic repeating unit [→3)-β-d-Galp-(1 → 4)-α-l-Gal-(1→] substituted mainly on O-6 of the β-d-Gal unit by β-xylosyl side stubs, and less with sulfate or methoxyl groups, and also on O-2 of the α-l-Gal unit with methoxyl or sulfate, or less on O-3 of the same unit with methoxyl groups. These features are common to those of the polysaccharides of the four members of the order Corallinales already studied. However, a sugar not very common to the order appears in substantial proportions: 2,3-di-O-methyl-d-galactose, which acts as a side stub. Another peculiar issue is the presence of significant amounts of 4-linked α-l-Gal units glycosylated on O-6 or O-3. These results confirm that within a common pattern of corallinean xylogalactans, each species has minor characteristics of their own.
publishDate 2011
dc.date.none.fl_str_mv 2011-03
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/11336/68726
Navarro, Diego Alberto; Ricci, Alejandra Marcela; Rodríguez, María Cecilia; Stortz, Carlos Arturo; Xylogalactans from Lithothamnion heterocladum, a crustose member of the Corallinales (Rhodophyta); Elsevier; Carbohydrate Polymers; 84; 3; 3-2011; 944-951
0144-8617
CONICET Digital
CONICET
url http://hdl.handle.net/11336/68726
identifier_str_mv Navarro, Diego Alberto; Ricci, Alejandra Marcela; Rodríguez, María Cecilia; Stortz, Carlos Arturo; Xylogalactans from Lithothamnion heterocladum, a crustose member of the Corallinales (Rhodophyta); Elsevier; Carbohydrate Polymers; 84; 3; 3-2011; 944-951
0144-8617
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.carbpol.2010.12.048
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0144861710010350
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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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