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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Chrysin and other leaf exudate flavonoids in the genus Pelargonium.

In a chemotaxonomic survey of 57 Pelargonium species, leaf exudate flavonoids were detected in 35% of the sample, mostly in trace amounts. However, chrysin and a related C-methylflavanone were identified as major leaf surface constituents of P. crispum, and a mixture of quercetin and kaempferol mono-, and di- and trimethyl ethers of P. quercifolium. In two other species, P. fulgidum and P. exstipulatum, methylated flavones were the only lipophilic flavonoids present. This is the first report of leaf surface flavonoids from the genus Pelargonium.[1]


  1. Chrysin and other leaf exudate flavonoids in the genus Pelargonium. Williams, C.A., Harborne, J.B., Newman, M., Greenham, J., Eagles, J. Phytochemistry (1997) [Pubmed]
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