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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/68726
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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 Técnicas2025-09-29T09:40:26Zoai: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:34982025-09-29 09:40:26.462CONICET 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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1844613279621578752 |
score |
13.070432 |