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dc.contributor.author
Pontis, Horacio Guillermo
dc.contributor.author
Vargas, Walter Alberto
dc.contributor.author
Salerno, Graciela Lidia
dc.date.available
2017-05-17T20:52:19Z
dc.date.issued
2006-12
dc.identifier.citation
Pontis, Horacio Guillermo; Vargas, Walter Alberto; Salerno, Graciela Lidia; Structural characterization of the members of a polymer series, compatible solutes in Anabaena cells exposed to salt stress; Elsevier Ireland; Plant Science; 172; 1; 12-2006; 29-35
dc.identifier.issn
0168-9452
dc.identifier.uri
http://hdl.handle.net/11336/16609
dc.description.abstract
In response to salinity cyanobacteria synthesize different osmoprotective compounds. We had reported that Anabaena cells accumulate not only sucrose (Suc) but also fructose-containing oligosaccharides in the presence of NaCl and at stationary phase (Plant Sci. 167 (2004) 1003–1008). In the present study, using NMR and GC–MS we showed that the oligosaccharides previously described are members of a new series of non-reducing Suc derivatives, where glucose (Glc) is linked through its hemiacetalic hydroxyl to the 2 position of the Glc moiety of Suc, resulting in the general structure: [α-d-Glcp-(1 → 2)]n-α-d-Glcp-(1 → 2)-β-d-Fruf. In the continuous series, it was possible to identify members with up to 10 hexose residues, depending on the cell analysed. As each member of the series has only one Fru, that of the terminal Suc molecule, we called these polymers with the general name of sucroglucans. Their occurrence was investigated in representative cyanobacteria of different taxonomic groups either unicellular or filamentous strains, including nitrogen-fixing and non-fixing strains. The oligosaccharides were mainly detected in salt-treated cells of Section 4 strains. Therefore, together with Suc, the members of the sucroglucan series should be included among the compatible solutes synthesized in response to salt stress in filamentous cyanobacterium strains.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Ireland
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject.classification
Otras Ciencias Químicas
dc.subject.classification
Ciencias Químicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Structural characterization of the members of a polymer series, compatible solutes in Anabaena cells exposed to salt stress
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-05-16T20:36:36Z
dc.journal.volume
172
dc.journal.number
1
dc.journal.pagination
29-35
dc.journal.pais
Irlanda
dc.journal.ciudad
Shannon
dc.description.fil
Fil: Pontis, Horacio Guillermo. Fundación para Investigaciones Biológicas Aplicadas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Vargas, Walter Alberto. Fundación para Investigaciones Biológicas Aplicadas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Salerno, Graciela Lidia. Fundación para Investigaciones Biológicas Aplicadas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.journal.title
Plant Science
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0168945206002123
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.plantsci.2006.07.007


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