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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

Citation

Deans, BJ and Just, J and Tedone, L and Kilah, NL and Jordan, GJ and Bissember, AC and Smith, JA, Distinct drimane chemotypes in Tasmanian Mountain Pepper (Tasmannia lanceolata): Differences in the profiles of pungent leaf phytochemicals associated with altitudinal cline, Journal of Agricultural and Food Chemistry, 68 pp. 315−322. ISSN 1520-5118 (2020) [Refereed Article]


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DOI: doi:10.1021/acs.jafc.9b05703

Abstract

This 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.

Item Details

Item Type:Refereed Article
Keywords:drimane chemotypes, Tasmanian mountain pepper, pungent leaf phytochemicals, altitudinal cline
Research Division:Chemical Sciences
Research Group:Organic Chemistry
Research Field:Natural Products Chemistry
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Chemical Sciences
UTAS Author:Deans, BJ (Miss Bianca Deans)
UTAS Author:Just, J (Mr Jeremy Just)
UTAS Author:Tedone, L (Ms Laura Tedone)
UTAS Author:Kilah, NL (Dr Nathan Kilah)
UTAS Author:Jordan, GJ (Professor Greg Jordan)
UTAS Author:Bissember, AC (Associate Professor Alex Bissember)
UTAS Author:Smith, JA (Associate Professor Jason Smith)
ID Code:136571
Year Published:2020 (online first 2019)
Deposited By:Chemistry
Deposited On:2020-01-09
Last Modified:2020-01-20
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