Eine dünnschichtchromatographische darstellung des jahresgangs löslicher zucker im stammholz von drei angiospermen und einer gymnosperme

Translated title of the contribution: A thinlayer Chromatographie demonstration of the annual fluctuation ofsoluble sugars in the trunkwood ofthree angiosperms and one gymnosperm

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Abstract

In increment cores, obtained from trunks of Acer pseudoplatanus L., Betula verrucosa Ehrh., Tilia cordata Mill., and Picea abies (L.) Karst, during a year cycle, soluble sugars extracted with 75% methanol were demonstrated by using thinlayer chromatography. The wood specimen contain glucose, fructose, sucrose, maitose (is not present in Tilia and Betula) and Oligosaccharides. Sucrose is dominant in all tree species. In the cold period of the year there is a pronounced increase in sugar concentrations. Leaf unfolding and the onset of growth ring formation are accompanied by a decrease of sugar concentration in the wood. In the summer months, raffinose and Oligosaccharides vanish almost completely. In the trunkwood of Acer, Betula and Picea, the influence of sudden spells of cold on the sugar concentration is obvious.

Translated title of the contributionA thinlayer Chromatographie demonstration of the annual fluctuation ofsoluble sugars in the trunkwood ofthree angiosperms and one gymnosperm
Original languageGerman
Pages (from-to)173-175
Number of pages3
JournalHolzforschung
Volume35
Issue number4
DOIs
StatePublished - 1981

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