期刊
ORIGINS OF LIFE AND EVOLUTION OF BIOSPHERES
卷 39, 期 5, 页码 479-493出版社
SPRINGER
DOI: 10.1007/s11084-009-9166-5
关键词
Homochirality; Prebiotic chemistry; Abiogenesis; Protometabolism; Proto-cells
类别
资金
- National Science Foundation [PHY-0757124]
The activation-polymerization-epimerization-depolymerization (APED) model of Plasson et al. has recently been proposed as a mechanism for the evolution of homochirality on prebiotic Earth. The dynamics of the APED model in two-dimensional spatially-extended systems is investigated for various realistic reaction parameters. It is found that the APED system allows for the formation of isolated homochiral proto-domains surrounded by a racemate. A diffusive slowdown of the APED network induced, for example, through tidal motion or evaporating pools and lagoons leads to the stabilization of homochiral bounded structures as expected in the first self-assembled protocells.
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