Amine distribution and content in several parts of the subantarctic endemic species Lyallia kerguelensis (Hectorellaceae)

The leaves, stems and roots of the subantarctic endemic species from Kergue len Lyallia kerguelensis showed different patterns of amine accumulation. T he leaves contained the highest free amine, stems the intermediate and root s the lowest content. Leaves accumulated massively agmatine and tyramine, w hereas stems contained high levels of octopamine and spermidine. A high con tent of an amine which was co-chromatographed with homospermidine was obser ved in leaves and stems. Conjugated amines did not accumulate to any signif icant extent in stems and roots, whereas they were detected in high amounts in leaves. (C) 1999 Elsevier Science Ltd. All rights reserved.