Cretaceous gnetalean yields first preserved plant gum
Cretaceous gnetalean yields first preserved plant gum
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白垩纪的鸽子树产出了第一种保存完好的植物胶
DOI:
10.1038/s41598-020-60211-2
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发表时间:
2020
影响因子:
4.6
通讯作者:
Martill
中科院分区:
文献类型:
--
作者:
Roberts;Seyfullah;Loveridge;Garside;Martill
Some liquid plant exudates (e.g. resin) can be found preserved in the fossil record. However, due to their high solubility, gums have been assumed to dissolve before fossilisation. The visual appearance of gums (water-soluble polysaccharides) is so similar to other plant exudates, particularly resin, that chemical testing is essential to differentiate them. Remarkably,Welwitschiophyllumleaves from Early Cretaceous, Brazil provide the first chemical confirmation of a preserved gum. This is despite the leaves being exposed to water twice during formation and subsequent weathering of the Crato Formation. TheWelwitschiophyllumplant shares the presence of gum ducts inside leaves with its presumed extant relative the gnetaleanWelwitschia. This fossil gum presents a chemical signature remarkably similar to the gum in extantWelwitschiaand is distinct from those of fossil resins. We show for the first time that a water-soluble plant exudate has been preserved in the fossil record, potentially allowing us to recognise further biomolecules thought to be lost during the fossilisation process.
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DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
D. Batten
通讯作者:
D. Batten
影响因子:
5.1
作者:
J. B. Lambert;Eric A. Heckenbach;Anna E. Hurtley;Yuyang Wu;J. Santiago
通讯作者:
J. Santiago
影响因子:
2.3
作者:
R. Tappert;A. P. Wolfe;R. McKellar;Michelle C. Tappert;K. Muehlenbachs
通讯作者:
K. Muehlenbachs
影响因子:
2.6
作者:
D. Martill;R. Loveridge;José Artur Ferreira Gomes de Andrade;Andre Herzog Cardoso
通讯作者:
Andre Herzog Cardoso
影响因子:
16.8
作者:
V. Vajda;M. Pucetaite;S. McLoughlin;A. Engdahl;J. Heimdal;P. Uvdal
通讯作者:
P. Uvdal