Terpenoid composition and chemotaxonomic aspects of Miocene amber from the Koroglu Mountains, Turkey

Sonibare, Oluwadayo O.; Huang, Ru‐Jin; Jacob, Dorrit E.; Nie, Yunyun; Kleine-Benne, Eike; Hoffmann, Thorsten; Foley, Stephen F.

doi:10.1016/j.jaap.2013.10.008

Cited by 24 publications

(14 citation statements)

References 42 publications

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“…The unknown factor is whether callitrisic acid can also isomerize to dehydroabietic acid in fossil resins. Dehydroabietic acid is generally the dominant compound in total extracts of certain ambers and fossil resins, with minor or trace amounts of callitrisic acid [12,18,19,46]. We also found the seco -derivatives of both callitrisic and dehydroabietic acids in some amber extracts and commonly in aged pine resins (see the mass spectra in the Supplemental Materials).…”

Section: Resultsmentioning

confidence: 62%

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Terpenoid Compositions of Resins from Callitris Species (Cupressaceae)

Simoneit

Cox²,

Otto

2018

Molecules

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The environmental fate of conifer resins and their natural product compounds as mixtures is of importance for source, alteration, and transport studies. The compound compositions of resins of the common Callitris species (Cupressaceae) based on gas chromatography-mass spectrometry have not been reported. Results show that diterpenoids were the most abundant components and callitrisic acid was present in the resin extracts of all Callitris species analyzed. Significant amounts of 4-epi-pimaric and sandaracopimaric acids, with lesser communic, ozic, and lambertianic acids, were also in the mixtures. Phenolic diterpenoids, for example, ferruginol, hinokiol, were found in trace quantities in some samples. Thus, callitrisic acid and 4-epi-pimaric acid are the characteristic diterpenoids of Callitris species that are amenable to molecular biomarker analyses in geological or environmental applications.

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Section: Resultsmentioning

confidence: 62%

“…However, its epimer, callitrisic acid (abieta-8,11,13-trien-19-oic acid), has not been reported for contemporary sedimentary environments. Nevertheless, callitrisic acid and degradation products, such as 16,17-bisnorcallitrisic acid, and 9,10- seco -callitrisic acids, are found in certain ambers or their pyrolysates [12,18,19].…”

Section: Introductionmentioning

confidence: 99%

Terpenoid Compositions of Resins from Callitris Species (Cupressaceae)

Simoneit

Cox²,

Otto

2018

Molecules

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“…; Sonibare et al . , ). Diterpenoids are the major products of conifers (a class of gymnosperms) while triterpenoids are mainly products of angiosperms (flowering plants) (Otto & Wilde ; Otto et al .…”

Section: Discussionmentioning

confidence: 99%

Amber from the Alpine Triassic of Lunz (Carnian, Austria): a classic palaeobotanical site

et al. 2017

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Amber from the Triassic (Carnian) of Lunz, a locality which has produced a rich and famous fossil flora, was analysed using UV-B-fluorescence, attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR) and pyrolysis gas chromatography mass spectroscopy (Py-GC-MS). The amber is classified as a class Ib resinite based on its chemical composition, which is characterized by bicyclic products derived from a regular labdatriene structure and the absence of succinic acid. The presence of diterpenoids and absence of triterpenoids is clear evidence of a gymnosperm origin for the Lunz amber, and the prevalence of sesquiterpenoids and diterpenoids point to a conifer family as a possible botanical source. In search of amber attached to identifiable floral remains we have screened new and historical collections of the macroflora from a number of localities of the Lunz area using UV-B, and describe a striking yellow UV-B-fluorescence of cuticles of pteridosperms, ginkgophytes and conifers. This varies with the diagenetic state of the sediment and may be lost altogether. Detectable amounts of fluorescent compounds were observed in gymnosperm taxa, but not in any ferns and only very weakly in horsetails. This underlines that fluorescent compounds are derived from gymnosperm plants, mostly likely arising secondarily from cyclic hydrocarbons by desaturation during diagenesis as a parallel process in amber as well as in cuticles.

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“…101 Spectroscopic methods (NMR and FTIR) were used as analytical tools. 102,103 Drzewicz et al 104 presented a comprehensive review about the pros and cons of different analytical methods to assess amber, including spectroscopic methods (FTIR, Raman, fluorescence, and NMR), chromatography, and mass spectrometry, and others (STA, X-ray diffraction, and microhardness).…”

Section: Ambermentioning

confidence: 99%

Recent developments in using the molecular decay dating method: a review

Tintner

2021

Annals of the New York Academy of Sciences

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The dating of organic findings is a fundamental task for many scientific fields. Radiocarbon dating is currently the most commonly used method. For wood, dendrochronology is another state-of-the-art method. Both methods suffer from systematic restrictions, leading to samples that have not yet been able to be dated. Molecular changes over time are reported for many materials under different preservation conditions. Many of them are intrinsically monotonous. These monotonous molecular decay (MD) patterns can be understood as clocks that start at the time when a given molecule was formed. Factors that influence these clocks include input material composition and preservation conditions. Different wood species, degrees of pyrolysis, and pretreatments lead to different prediction models. Preservation conditions might change the speed of a given clock and lead to different prediction models. Currently published models for predicting the age of wood, paper, and parchment depend on infrared spectroscopy. In contrast to radiocarbon dating, dating via MD does not comprise a single methodology. Some clocks may deliver less precise results than the others. Ultimately, developing a completely different, new dating strategy-such as MD dating-will help to bring to light a treasure trove of information hidden in the darkness of organic findings.

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Terpenoid composition and chemotaxonomic aspects of Miocene amber from the Koroglu Mountains, Turkey

Cited by 24 publications

References 42 publications

Terpenoid Compositions of Resins from Callitris Species (Cupressaceae)

Terpenoid Compositions of Resins from Callitris Species (Cupressaceae)

Amber from the Alpine Triassic of Lunz (Carnian, Austria): a classic palaeobotanical site

Recent developments in using the molecular decay dating method: a review

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