期刊
BIOTECHNOLOGY LETTERS
卷 24, 期 17, 页码 1413-1416出版社
SPRINGER
DOI: 10.1023/A:1019898414801
关键词
acidic oligosaccharides; plant growth regulators; xylanase
Neutral and acidic oligosaccharides were obtained from birchwood xylan by treatment with an endoxylanase, family 10 class, from Thermoascus aurantiacus. The main acidic xylooligosaccharide (aldotetrauronic acid) was separated from the hydrolysate by anion-exchange and size-exclusion chromatography and the primary structure was determined by C-13 NMR spectroscopy. The aldotetrauronic yield was 15% (w/w) of the total solubilised sugars. The addition of purified aldoterauronic acid at 1.6-16 mg l(-1) growth medium, induced callus and somatic embryogenesis in culture explants of common mallow (Malva silvestris L.) and cotton (Gosssypium hirsutum).
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