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CHAPTER ONE Redox Effects on Chloroplast Protein Synthesis
 

Summary: CHAPTER ONE
Redox Effects on Chloroplast Protein Synthesis
and Phosphorylation
Carol A. Allen and John F. Allen
Abstract Chloroplasts and mitochondria have
retained their own genomes and genetic systems,
distinct from those of the cell nucleus and cytosol. It
is proposed that the reason for this retention is that
chloroplast and mitochondrial genetic systems ena-
ble them to respond quickly and directly to changes
in their internal redox state (Allen 1993a). This
response is necessary to minimise the production of
free radicals, which have the potential to damage and
even destroy the cell. By controlling which proteins
are synthesised, and how quickly, the individual
chloroplast or mitochondrion can ensure the safest
and most effective operation of its electron transport
chain. The results shown here indicate that if the
redox poise of isolated chloroplasts is altered, giving
reducing or oxidising conditions, the proteins syn-

  

Source: Allen, John F. - School of Biological and Chemical Sciences, Queen Mary, University of London

 

Collections: Renewable Energy; Biology and Medicine