The accumulation of essential oils in Angelica archangelica subsp. archangelica roots at different developmental stages was investigated through histochemical and chemical analyses. Roots less than 1 mm in diameter showed a primary diarch structure and two primary secretory ducts in the pericycle. These ducts were ephemeral and probably became dysfunctional early on. Oil accumulation was observed only in the secondary secretory ducts formed by cambium activity and located in the secondary phloem. Gas chromatographic analyses revealed that only taproots exceeding 5 mm in diameter contained a high concentration of α- and β-phellandrene, which appreciably influence the oil's aroma.
Accumulation of essential oils in relation to root differentiation in Angelica archangelica L / Pasqua, Gabriella; Monacelli, Barbara; Andrea, Silvestrini. - In: EUROPEAN JOURNAL OF HISTOCHEMISTRY. - ISSN 1121-760X. - STAMPA. - 47:1(2003), pp. 87-90. [10.4081/811]
Accumulation of essential oils in relation to root differentiation in Angelica archangelica L.
PASQUA, Gabriella;MONACELLI, Barbara;
2003
Abstract
The accumulation of essential oils in Angelica archangelica subsp. archangelica roots at different developmental stages was investigated through histochemical and chemical analyses. Roots less than 1 mm in diameter showed a primary diarch structure and two primary secretory ducts in the pericycle. These ducts were ephemeral and probably became dysfunctional early on. Oil accumulation was observed only in the secondary secretory ducts formed by cambium activity and located in the secondary phloem. Gas chromatographic analyses revealed that only taproots exceeding 5 mm in diameter contained a high concentration of α- and β-phellandrene, which appreciably influence the oil's aroma.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
