Document Detail

Structural co-evolution of viruses and cells in the primordial world.
MedLine Citation:
PMID:  18228159     Owner:  NLM     Status:  MEDLINE    
Viruses and cells co-evolve due to the parasitic nature of viruses. Yet there are no models suggesting how the unicellular organisms and their viruses might co-evolve structurally. Here, in this study, we plunge into this unexplored field from a wide perspective and try to describe some of the intriguing ways in which viruses may have shaped the cellular life forms on the ancient Earth. At first we propose a scenario where viruses act as a driving force in the emergence of bacterial cell walls by providing favorable intermediates for the otherwise improbable steps in the cell wall generation. We also discuss the role of viruses in the evolution of cell surface components such as receptors and second membranes. Finally we focus on hypothetical proto-viruses, the selfish abusers of the RNA-world, in explaining some of the very early stages in the origin and evolution of life. Proto-viruses may be responsible for creating the first true cells in order to support their selfish needs. In this model we also suggest a logical pathway to explaining the emergence of modern viruses.
Matti Jalasvuori; Jaana K H Bamford
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2008-01-29
Journal Detail:
Title:  Origins of life and evolution of the biosphere : the journal of the International Society for the Study of the Origin of Life     Volume:  38     ISSN:  0169-6149     ISO Abbreviation:  Orig Life Evol Biosph     Publication Date:  2008 Apr 
Date Detail:
Created Date:  2008-03-18     Completed Date:  2008-06-03     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  8610391     Medline TA:  Orig Life Evol Biosph     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  165-81     Citation Subset:  IM; S    
Department of Biological and Environmental Science and Nanoscience Center, University of Jyväskylä, P.O. Box 35, FIN-410014, Jyväskylä, Finland.
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MeSH Terms
Bacterial Physiological Phenomena
Cell Wall / physiology
Host-Pathogen Interactions / physiology*
Virus Physiological Phenomena

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