对4500万年历史的有色芽种叶子进行植物化学选,发现了独特的基衍生和多色素颜料
Klaus Wolkenstein1,2, Christa E Müller1, Marianne Engeser3
1Pharmaceutical Institute, Pharmaceutical & Medicinal Chemistry, University of Bonn, Bonn, Germany.
Geobiology
|January 31, 2026
概括
古老的血管精子化石揭示了保存的植物颜料,如叶绿素衍生物和黄类. 这项研究证明了古元代谢选,以了解分子层面的植物化石化.
科学领域:
- 古植物学是古植物学.
- 有机地化学 有机地化学
- 生物地质化学生物地质化学
背景情况:
- 胞体产生各种颜料,这些颜料对生存和繁殖至关重要.
- 很少有人知道关于古代血管精子植物化学物质,它们的化石记录,稳定性和diagenesis.
- 存在着古老的白种类的特殊保存,但化学分析受到稀有性和少量代谢物的限制.
研究的目的:
- 选完整的古老植物化学代谢物及其降解产物在特别保存的欧纪血管精卵化石中.
- 研究植物代谢物在地质时间尺度上的稳定性和命运.
- 通过古代代谢学方法,了解分子层面的化石化过程.
主要方法:
- 在多重反应监测 (MRM) 模式下,有针对性的液体染色学-并联质谱学 (LC-MS/MS).
- 在来自德国Geiseltal化石Lagerstätte的4500万年历史的血管精子叶子中选纳米量的代谢物.
- 对化石叶子和相关的棕色煤矩阵进行分析.
主要成果:
- 在化石的叶子和煤炭中保存了各种叶绿素衍生物和降解产品.
- 确定了多性颜料,包括黄类药物apigenin和luteolin.
- 在化石记录中检测到的"不稳定的"叶绿素衍生物二-132,173-cyclopheophorbide a-enol,通常在现代微生物中发现.
- 单烯基血酸被确定为一种稳定的叶绿素代谢产物.
结论:
- 单个植物化石的古金属代谢选是追踪古代植物化学成分的可行方法.
- 叶绿素衍生物和多性颜料可以在数百万年内保存在苗化石中.
- 这些发现提供了关于植物代谢物和化石化分子层次过程的洞察.
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