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PLANT PHYSIOLOGY , Vol 101, Issue 2 339-344, Copyright © 1993 by American Society of Plant Biologists
Metabolic Adaptations of Plant Respiration to Nutritional Phosphate Deprivation
M. E. Theodorou and W. C. Plaxton
Departments of Biology and Biochemistry, Queen's University, Kingston, Ontario, Canada K7L 3N6
Plants respond adaptively to orthophosphate (Pi) deprivation through the
induction of alternative pathways of glycolysis and mitochondrial electron
transport. These respiratory bypasses allow respiration to proceed in
Pi-deficient plant cells because they negate the necessity for adenylates
and Pi, both pools of which are severely depressed following nutritional Pi
starvation.
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