Falshaw Ruth, Furneaux Richard H
Industrial Research Ltd, PO Box 31-310, Lower Hutt, New Zealand.
Carbohydr Res. 2009 Jan 26;344(2):210-6. doi: 10.1016/j.carres.2008.10.020. Epub 2008 Oct 29.
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.
报道了利用红外光谱结合组成糖及糖基连接/取代分析，对新西兰本土9种属于杉藻科的四分孢子体植物的多糖进行鉴定，这些植物分别是“Gigartina”ancistroclada、“G.”grandifida、Gigartina dilatata、G. divaricata、G. macrocarpa、G. marginifera、G. pachymenioides、G. sp. “Lindauer 164”和Sarcothalia livida。所有9个物种均含有结构与λ型卡拉胶一致的半乳聚糖。这些物种以及另外6个先前研究过的物种中半乳聚糖结构的差异表明，在化学分类学上存在明显不同的分组，这些分组对应于Sarcothalia属、“Sarcothalia”属和Gigartina属以及一些异常物种。这些明显的化学分类分组与文献中报道的通过rbcL序列分析确定的分组一致。
