caa a22 4500 378872516 CHVBK 20180305123412.0 cr unu---uuuuu 161128e20030707xx s 000 0 eng 10.1515/BOT.2003.036 doi (NATIONALLICENCE)gruyter-10.1515/BOT.2003.036 Miller I. J. Evaluation of the Structures of Polysaccharides from Two New Zealand Members of the Ceramiaceae [Elektronische Daten] [I. J. Miller] The structures of the polysaccharides extracted from Griffithsia antarctica and Ceramium uncinatum, both from the family Ceramiaceae (order Ceramiales) were evaluated. Both were based on the agar structure with a high level of precursors. The polysaccharide from Griffithsia antarctica was almost completely sulfated at the 4-position, with approximately half the 4-linked units either anhydrogalactose or its precursor (in about equal amounts comparing the sugar analysis with the linkage analysis), and the other half sulfated at the 3-position and, additionally, with 2-xylosyl, 2-sulfate or 6-sulfate ester as substituents. The polysaccharide from Ceramium uncinatum was somewhat different in nature. One in four of the 3-linked units was sulfated at the 6-position, while half of the 4-linked units were in the anhydrogalactosyl form, with approximately equal amounts of galactose, galactose 6-sulfate (anhydrogalactose precursor) and galactose substituted with xylose making up the remaining 4-linked units. Both polysaccharides showed low levels of 6-O-methylgalactose and 2-O-methyl-3,6-anhydrogalactose. Copyright © 2003 by Walter de Gruyter GmbH & Co. KG Hydrobiology nationallicence Mycology, fungi nationallicence Botany & plant sciences nationallicence Botanica Marina Walter de Gruyter 46/4(2003-07-07), 378-385 0006-8055 46:4<378 2003 46 botm https://doi.org/10.1515/BOT.2003.036 text/html Onlinezugriff via DOI 1 research article jats NATIONALLICENCE 856 40 https://doi.org/10.1515/BOT.2003.036 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Miller I. J. NATIONALLICENCE 773 0- Botanica Marina Walter de Gruyter 46/4(2003-07-07), 378-385 0006-8055 46:4<378 2003 46 botm CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence SWISSBIB 378872516 BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-gruyter