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Distinct drimane chemotypes in Tasmanian Mountain Pepper (Tasmannia lanceolata): Differences in the profiles of pungent leaf phytochemicals associated with altitudinal cline
journal contribution
posted on 2023-05-20, 09:18 authored by Bianca DeansBianca Deans, Just, J, Tedone, L, Nathan KilahNathan Kilah, Gregory JordanGregory Jordan, Alexander BissemberAlexander Bissember, Jason SmithJason SmithThis study assesses whether the distinct altitudinal cline in leaf morphology (decreased leaf width and length with increased altitude) in Tasmanian mountain pepper (Tasmannia lanceolata) is associated with changes in the leaf chemistry of wild populations from different ecological landscapes and altitudes. The presence of distinct pungent drimane sesquiterpenoid chemotypes was identified: subalpine woodland and wet sclerophyll forest chemotypes. Isolation studies and analysis of extracts revealed that wet sclerophyll forest T. lanceolata populations featured polygodial as the principal terpenoid, with profiles similar to the commercial cultivars sampled. In contrast, the subalpine woodland populations contained the drimane sesquiterpenoids 1β-acetoxy-9-deoxyisomuzigadial and 3β-acetoxydrimenin and the conspicuous absence of the pungent principle polygodial.
History
Publication title
Journal of Agricultural and Food ChemistryVolume
68Pagination
315−322ISSN
1520-5118Department/School
School of Natural SciencesPublisher
Amer Chemical SocPlace of publication
United StatesRights statement
Copyright 2019 American Chemical SocietyRepository Status
- Restricted