| Literature DB >> 8039175 |
M Natsume1, Y Kamo, M Hirayama, T Adachi.
Abstract
Lytic digestion of poly(mannuronate), poly(guluronate), and alginate with an alginate lyase from Alteromonas macleodii was used to prepare mixtures of unsaturated oligosaccharides. Four oligosaccharides isolated from the alginate lyase-lysate by anion-exchange chromatography on Q-Sepharose were found to be the major components of the root growth-promoting lysate. The oligosaccharides were analyzed by NMR and SIMS and identified as di- and tri-saccharides having O-(4-deoxy-L-erythro-hex-4-enopyranosyluronic acid)-1--> at the nonreducing terminus. The trisaccharides from the lysate were found to have root growth-promoting activity in a barley bioassay.Entities:
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Year: 1994 PMID： 8039175 DOI： 10.1016/0008-6215(94)84085-7
Source DB: PubMed Journal: Carbohydr Res ISSN： 0008-6215 Impact factor: 2.104