期刊
CARBOHYDRATE RESEARCH
卷 344, 期 2, 页码 210-216出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carres.2008.10.020
关键词
Carrageenan; Sulfated galactan; Chondracanthus; Gigartina; Sarcothalia; Gigartinaceae
资金
- New Zealand Foundation for Research, Science and Technology [COM211]
The identification of the polysaccharides from tetrasporophytic plants of nine endemic New Zealand species belonging to the Gigartinaceae, 'Gigartina' ancistroclada, 'G.'grandifida, Gigartina dilatata, G. divaricata, G. macrocarpa, G. marginifera, G. pachymenioides, G. sp. 'Lindauer 164' and Sarcothalia livida using infra-red spectroscopy in conjunction with constituent sugar and glycosyl linkage/substitution analysis is reported. All nine species contain galactans with structures consistent with lambda-type carrageenans. Differences in the structures of the galactans in these and a further six previously studied species indicate chemotaxonomically distinct groupings that correspond to Sarcothalia, 'Sarcothalia' and Gigartina genera plus some outliers. These distinct, chemotaxonomic groupings are aligned to those determined by rbcL sequence analysis reported in the literature. (C) 2008 Elsevier Ltd. All rights reserved.
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