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Comparative Study of Polysaccharides from Reproductive and Sterile Tissues of Five Brown Seaweeds.
MedLine Citation:
PMID:  22072046     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Sterile and reproductive tissues of five brown algae (Sargassum pallidum, Silvetia babingtonii, Fucus evanescens, Saccharina japonica, and Alaria ochotensis) from Russian Far East seas were compared for the content and monosaccharide composition of fucoidans as well as the content of laminarans and alginic acids. It was proved that reproduction has an apparent effect on fucoidan content and its monosaccharide composition. Fucoidan content in fertile tissues was shown to be 1.3-1.5 times as high as in sterile ones. Based on the present and previously reported data, we believe that fucoidan accumulation during the development of reproductive structure is a general trend for brown seaweeds. Reproduction also caused changes in the monosaccharide composition. As a result, fertile plants synthesized fucoidan with less heterogeneous monosaccharide composition in comparison with sterile ones. Structural changes of this polysaccharide are species-specific and perhaps depend on the type of the synthesized polysaccharide. The fertile plants of S. babingtonii yielded the highest fucoidan content [25% dry weight (dw)] among the tested species, whereas the maximum alginic acid content was found for the sterile tissues of S. japonica-up to 43% dw. There was no general trend in alginic acid content variation during sporulation. The alginic acid content was much higher in the sterile tissues of S. japonica in comparison with the fertile ones. On the contrary, the fertile tissues of A. ochotensis contained more alginic acid than the sterile ones.
Authors:
Anna V Skriptsova; Nataliya M Shevchenko; Daria V Tarbeeva; Tatiana N Zvyagintseva
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-11-10
Journal Detail:
Title:  Marine biotechnology (New York, N.Y.)     Volume:  -     ISSN:  1436-2236     ISO Abbreviation:  -     Publication Date:  2011 Nov 
Date Detail:
Created Date:  2011-11-10     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100892712     Medline TA:  Mar Biotechnol (NY)     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Laboratory of the Physiology of Marine Autotrophic Organisms, A.V. Zhirmunsky Institute of Marine Biology, Far-Eastern Branch of Russian Academy of Science, 17 Palchevskogo St., Vladivostok, 690059, Russia, askriptsova@mail.ru.
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