Localization of Chromenes and Benzofurans in the Genus Encelia (Asteraceae)

Peter Proksch, Margareta Proksch, Waltraud Weck, Eloy Rodriguez
1985 Zeitschrift für Naturforschung C - A Journal of Biosciences  
Phytochemical and microscopial analysis of leaves and stems of various species of Encelia showed a strict correlation between the presence of resin ducts and the accumulation of benzopy­rans and benzofurans. Fluorescence microscopy of Encelia farinosa proved unambigously that these compounds are stored exclusivly in the resin ducts and the surrounding cells.
doi:10.1515/znc-1985-5-602 fatcat:7wo23mxjyzazzfakpw7ifnasya