The nonvolatile metabolome of sunflower linear glandular trichomes

Publikations-Art

Zeitschriftenbeitrag (peer-reviewed)

Autoren

Spring, O.; Pfannstiel, J.;Klaiber, I.; Conrad, J.; Beifuss, U.; Apel, L.; Aschenbrenner, A.-K.; Zipper, R.

Erscheinungsjahr

2015

Veröffentlicht in

Phytochem.

Band/Volume

119/

DOI

10.1016/j.phytochem.2015.09.007

Seite (von - bis)

83-89

Uniseriate linear glandular trichomes occur on stems, leaves and flowering parts of Helianthus species and related taxa. Their metabolic activity and biological function are still poorly understood. A phytochemical study documented the accumulation of bisabolene type sesquiterpenes and flavonoids as the major constituents of the non-volatile metabolome of linear glandular trichomes in the common sunflower, Helianthus annuus. Besides known sesquiterpenes of the glandulone, helibisabonol and heliannuol type, four previously undescribed sesquiterpenes named glandulone D, E, F and helibisabonol C were identified by spectroscopic analysis. In addition, four known nevadensin type flavonoids varying in O-methoxy substitutions were found. None of them has previously been reported from Helianthus annuus.