Topic
Terpene
About: Terpene is a research topic. Over the lifetime, 2208 publications have been published within this topic receiving 51480 citations. The topic is also known as: terpenes.
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TL;DR: A cDNA library was constructed from leaves of A. annua seedlings and target sequences were amplified by PCR using degenerate primers derived from a consensus sequence of angiosperm terpene synthases, and RT-PCR demonstrated a wound-inducible increase in QH1 and QH5 transcript abundance in both leaves and stems over a 3-day time course.
85 citations
TL;DR: Douglas-fir oleoresin and the terpene hydrocarbons (α-pinene, β- pinene, litnonene, camphene, geraniol, and α-terpineol) attracted various bark and timber beetles associated with Douiglas- fir forests during their flight.
Abstract: Douglas-fir oleoresin and the terpene hydrocarbons (α-pinene, β-pinene, litnonene, camphene, geraniol, and α-terpineol) attracted various bark and timber beetles associated with Douiglas-fir forests during their flight. In responding to these volatile terpenes the bettles are directed to favorable breeding material.
84 citations
TL;DR: In this paper, the chemistry of the cannabinoids and major non-cannabinoid constituents (terpenes, non cannabinoid phenolics, and alkaloids) with special emphasis on their chemical structures, methods of isolation, and identification.
Abstract: Cannabis sativa is one of the oldest medicinal plants in the world. It was introduced into western medicine during the early 19th century. It contains a complex mixture of secondary metabolites, including cannabinoids and non-cannabinoid-type constituents. More than 500 compounds have been reported from C. sativa, of which 125 cannabinoids have been isolated and/or identified as cannabinoids. Cannabinoids are C21 terpeno-phenolic compounds specific to Cannabis. The non-cannabinoid constituents include: non-cannabinoid phenols, flavonoids, terpenes, alkaloids and others. This review discusses the chemistry of the cannabinoids and major non-cannabinoid constituents (terpenes, non-cannabinoid phenolics, and alkaloids) with special emphasis on their chemical structures, methods of isolation, and identification.
84 citations
TL;DR: The toxicity of terpenes from Artemisia califORNica, and their distribution in the soil in thickets of A. californica are reported, with camphor being most toxic, followed by 1,8-cineole.
Abstract: The essential oil from Artemisia californica yields five terpenoids in major amounts: 1,8-cineole, artemisia ketone, ca-thujone, isothujone, and camphor. Of these, camphor is most toxic, followed by 1,8-cineole. Artemisia ketone is least toxic. Terpenoids found in minor amounts include ,3-pinene, borneol, and the sesquiterpene hydrocarbon caryophyllene. These are intermediate in toxicity. Amount and composition of the essential oil change ac- cording to a seasonal pattern. A greater amount of essential oil is extractable in fall than in winter. Isothujone largely replaces a-thujone, and camphor becomes more abundant in late summer and fall. The soil and litter in stands of A. californica contain many of the same volatile substances as are in Artemisia foliage. cluding a-pinene (3%), p-cymene (3%), linalyl ace- tate (2%), camphene (2%), 1-a-thujone (10%), d-isothujone (/B) (6%), artemisia ketone (10%), camphor (25%), 1,8-cineole (33%), and borneol (3%). In this paper I report the toxicity of terpenes from Artemisia californica, and their distribution in the soil in thickets of A. californica.
83 citations
TL;DR: In this article, four strains of Saccharomyces cerevisiae and native yeasts were evaluated for their influence on White Riesling-conjugated aroma precursors, which were measured using three analytical procedures.
82 citations