samedi 24 janvier 2009

「生命を定義する」 Définir la vie (12)

5 février 2008

Patrick Forterre (Institut Pasteur - Paris) "Life definition : the virus viewpoint"

Half of the referees said "Definition of life is necessary."

Three domains of life: Bacteria, Archaea and Eukarya
Virus is living?

Viruses are by far the most abundant biological entities on our planet;
 1031 viral particles

10x bigger virus = 3x larger than cells

Jean-Michel Claverie "Viruses take center stage in cellular evolution"
Genome Biology 2006, 7:110

"the discovery of highly complex giant DNA viruses have stimulated new hypotheses that DNA viruses were involved in the emergence of the eukaryotic cell nucleus, and that they are worthy of being considered as living organisms."

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