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Establishment of Microbial Eukaryotic Enrichment Cultures from a Chemically Stratified Antarctic Lake and Assessment of Carbon Fixation Potential
Published on: April 20, 2012
Los primeros eucariotas no marinos de la Tierra
Paul K Strother1, Leila Battison, Martin D Brasier
1Department of Earth and Environmental Sciences, Boston College, Weston, Massachusetts 02493, USA. Strother@bc.edu
Nature
|April 15, 2011
Resumen
Se ha descubierto evidencia directa de eucariotas tempranos en antiguos entornos terrestres. Diversos microfósiles de la era proterozoica sugieren que la vida compleja existió en hábitats de agua dulce y subaéreos hace mil millones de años.
Área de la Ciencia:
- Paleontología Paleontología.
- Geología Geología Geología.
- Microbiología Microbiología.
Sus antecedentes:
- La existencia de la biota del Precámbrico terrestre se infiere principalmente a partir de pruebas geológicas y químicas indirectas.
- La evidencia directa de fósiles de rocas no marinas del Precámbrico es excepcionalmente rara, con pocos ejemplos citados.
- Estudios previos de microfósiles del Precámbrico, como los de la secuencia Torridoniana, arrojaron un número limitado de taxones distintivos, principalmente "leiosferas" simples.
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