Work

Exudate Flavonoids in Some Gnaphalieae and Inuleae (Asteraceae)

Year: 2005

Type: article

Abstract: Three members of the tribe Gnaphalieae and six members of the tribe Inuleae (Asteraceae) were analyzed for their exudate flavonoids. Whereas some species exhibit rather trivial flavonoids, others produce rare compounds. Spectral data of rare flavonoids are reported and their structural identification is discussed. 6-Oxygenation of flavonols is a common feature of two Inula species and Pulicaria sicula. By contrast, flavonoids with 8-oxygenation, but lacking 6-oxygenation, are common in two out of three Gnaphalieae species examined. In addition, B-ring deoxyflavonoids are abundantly present in the leaf exudates of Helichrysum italicum (Gnaphalieae). These distinctive features of the two Asteraceae tribes are in agreement with previous flavonoid surveys of these and related taxa.

Source: Zeitschrift für Naturforschung C

DOI: 10.1515/znc-2005-9-1003

Authors: Eckhard Wollenweber, Matthias Christ, R. Hugh Dunstan, James N. Roitman, Jan F. Stevens

Institutions: Technische Universität Darmstadt, University of Newcastle Australia, Western Regional Research Center, Oregon State University

Language: English

Topic: Sesquiterpenes and Asteraceae Studies

Subfield: Cancer Research

Field: Biochemistry, Genetics and Molecular Biology

Domain: Life Sciences

Open Access status: hybrid

Estimated APC paid: $2,712