Abstract
The occurrence of a new cyanogenic glucoside, p-glucosyloxymandelonitrile, in young shoots of Nandina domestica Thunb. is reported. The amount of the cyanogen varies from 10–20 per cent of the dry weight in young shoots. The administration of 14C labelled [ 14C]tyrosine shows that this amino acid is effectively incorporated into the aldehyde and nitrile moieties. Though no intermediates have been established, experimental evidence indicates that the C αC β bond of tyrosine remains intact during conversion. The nitrile moiety is further metabolized and is incorporated into the amide carbon of asparagine.
Published Version
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