作者: J.J. Brocks , R.E. Summons
DOI: 10.1016/B978-0-08-095975-7.00803-2
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摘要: Molecular biological markers, or biomarkers, are natural products that can be assigned to a particular biosynthetic origin. For environmental and geological studies, the most useful molecular biomarkers organic compounds with high taxonomic specificity potential for preservation. This chapter introduces some of general principles, provides examples their use discerning identities physiologies microbes in contemporary environments summarizes biomarker research aimed at elucidating aspects evolution Precambrian.