On the Pigmentation of the Pollen of Nothofagus antarctica (Forst.) Oerst. (Fagaceae)
Open Access
- 1 December 1979
- journal article
- research article
- Published by Walter de Gruyter GmbH in Zeitschrift für Naturforschung C
- Vol. 34 (12) , 1289-1291
- https://doi.org/10.1515/znc-1979-1240
Abstract
Extraction of pollen of Nothofagus antarctica with acid hydrolysis yields kaempferol, quercetin, the rare flavonol sexangularetin, and naringenin. The tetrahydroxy-chalcone isosalipurpol is shown for the first time to occur in such high amount as free aglycone in mature pollen; it yields naringenin in usual extraction procedures. The bright yellow coloration of the pollen is due to the presence of isosalipurpol and sexangularetin.Keywords
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