Seasonal variation and resin composition in the Andean tree Austrocedrus chilensis.

ABSTRACT: Little is known about the changes in resin composition in South American gymnosperms associated with the different seasons of the year. The diterpene composition of 44 resin samples from seven Austrocedrus chilensis (Cupressaceae) trees, including male and female individuals, was investigated in three different seasons of the year (February, June and November). Twelve main diterpenes were isolated by chromatographic means and identified by gas chromatography-mass spectrometry and nuclear magnetic resonance (NMR). The diterpene composition was submitted to multivariate analysis to find possible associations between chemical composition and season of the year. The principal component analysis showed a clear relation between diterpene composition and season. The most characteristic compounds

SUBMITTER: Olate VR 

PROVIDER: S-EPMC6271173 | biostudies-literature | 2014 May

REPOSITORIES: biostudies-literature