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首页> 外文期刊>Journal of Experimental Marine Biology and Ecology >Water-soluble polysaccharides of some brown algae of the Russian Far-East. Structure and biological action of low-molecular mass polyuronans
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Water-soluble polysaccharides of some brown algae of the Russian Far-East. Structure and biological action of low-molecular mass polyuronans

机译：俄罗斯远东一些褐藻的水溶性多糖。低分子聚尿嘧啶的结构和生物学作用

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摘要

The contents and structural characteristics of water-soluble polysaccharides such as polyuronans, fucoidans and laminarans dependent on species, age of algae and the year of collection were studied for four species of brown algae—Alaria fistulosa, A. marginata, Fucus evanescens and Laminaria cichorioides, widespread on the Russian Far-East. The mature L. cichorioides was shown to be the richest source of both laminarans and fucoidans, F. evanescens—fucoidans. However, the Alaria species and young age algae F. evanescens contained practically polyuronans only. Alaria marginata and A. fistulosa were revealed to have a little of fucoidan and negligible quantity of laminaran (less than 1%). Contents of water-soluble polyuronans in A. fistulosa were approximately 2 times more, than in A. marginata. Water-soluble polyuronans of these seaweeds are represented by polymannuronans (Mm about 40 kDa). It was shown, that the young age algae F. evanescens contains the water-soluble low-molecular mass mannuronans along with the high-molecular mass laminarans. Stimulating action of polyuronans on the sea urchin developing embryos was revealed.
机译：考察了褐藻的种类，藻龄和捕捞年份对水溶性多糖如聚脲醛聚糖，岩藻聚糖和laminarans的含量和结构特征的影响，研究了四种褐藻-拟南芥，边缘拟南芥，悬钩子和褐海带。 ，在俄罗斯远东地区广泛存在。事实证明，成熟的L. cichorioides是薄片和岩藻依聚糖（F. evanescens-fucoidans）的最丰富来源。但是，Alaria物种和年轻藻类F. evanescens实际上仅含有聚尿烷。 Alaria marginata和A. fistulosa被发现含有少量岩藻依聚糖和少量的laminaran（少于1％）。瘘管农杆菌中水溶性聚尿嘧啶的含量比边缘农杆菌高约2倍。这些海藻中的水溶性聚尿嘧啶以聚甘露聚糖为代表（Mm约为40 kDa）。结果表明，年轻的海藻F. evanescens包含水溶性的低分子质量的mannuronans和高分子量的laminarans。揭示了聚尿嘧啶对海胆发育中的胚胎的刺激作用。

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