Phenolic Acids in Wheat Coleoptile Cell Walls 1
AUTOR(ES)
Whitmore, F. W.
RESUMO
The phenolic constituent of nonvascular cell walls of wheat (Triticum aestivum L.) coleoptiles, which yields vanillin upon nitrobenzene oxidation, is not lignin as I previously claimed. It seems to be mainly ferulic acid bonded to carbohydrate, probably by an ester linkage. The acid is associated with a fraction of the wall rich in arabinose and xylose, although it is not known whether it is esterified directly with these pentose residues. The phenolic-carbohydrate complex is released by cellulase, but not by pronase or a mixture of hemicellulases.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=541434Documentos Relacionados
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