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Alkali-extractable and water-soluble polysaccharide (F1SS): a chemotaxonomic and phylogenetic character for Cephalotheca

Published online by Cambridge University Press:  03 December 2002

Oussama AHRAZEM ,
Gema BLÁZQUEZ ,
Alicia PRIETO ,
Manuel BERNABÉ  and
J. Antonio LEAL
Oussama AHRAZEM
Affiliation:
Centro de Investigaciones Biológicas, Centro de Investigaciones Biológicas, (CSIC), Velázquez 144, E-28006 Madrid, Spain.
Gema BLÁZQUEZ
Affiliation:
Centro de Investigaciones Biológicas, Centro de Investigaciones Biológicas, (CSIC), Velázquez 144, E-28006 Madrid, Spain.
Alicia PRIETO
Affiliation:
Centro de Investigaciones Biológicas, Centro de Investigaciones Biológicas, (CSIC), Velázquez 144, E-28006 Madrid, Spain.
Manuel BERNABÉ
Affiliation:
Instituto de Química Orgánica, Departamento de Química Orgánica Biológica (CSIC), Juan de la Cierva 3, E-28006 Madrid, Spain
J. Antonio LEAL
Affiliation:
Centro de Investigaciones Biológicas, Centro de Investigaciones Biológicas, (CSIC), Velázquez 144, E-28006 Madrid, Spain.
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Abstract

The cell wall alkali-extractable water-soluble polysaccharide (F1SS) purified from the three species of Cephalotheca has been characterized. Two different structures have been deduced by chemical and structural analyses. The structure of the polysaccharide F1SS from C. purpurea and C. reniformis is similar, and composed of 3,6-di-O-substituted mannopyranose with terminal residues of rhamnopyranose. The polysaccharide F1SS from C. sulfurea contains 2,6-di-O-substituted mannopyranose and terminal residues of galactofuranose. Our results confirm the relatedness of C. purpurea and C. reniformis with Ophiostomatales and of C. sulfurea with Sordariales.

Type
Research Article
Information
Mycological Research , Volume 106 , Issue 10 , October 2002 , pp. 1187 - 1192
Copyright
© The British Mycological Society 2002

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