Beneficial interactions of mitochondrial metabolism with photosynthetic carbon assimilation.
Chloroplasts and mitochondria are traditionally considered to be autonomous organelles but they are not as independent as they were once thought to be. Mitochondrial metabolism, particularly the bioenergetic reactions of oxidative electron transport and phosphorylation, continue to be active in the light and are essential for sustaining photosynthetic carbon assimilation. The marked and mutually beneficial interaction between mitochondria and chloroplasts is intriguing. The key compartments within plant cells, including not only mitochondria and chloroplasts but also the peroxisomes and cytosol, appear to be in a delicate metabolic equilibrium. Disturbance of any of these compartments perturbs the metabolism of whole cell. Nevertheless, mitochondria appear to be the key players because they function during both photorespiration and dark respiration.
Raghavendra
Agepati S
AS
Department of Plant Sciences, School of Life Sciences, University of Hyderabad, 500 046, Hyderabad, India. asrs1@uohyd.ernet.in
Padmasree
Kollipara
K
D002241:Carbohydrates / Q000096:biosynthesis*; D019069:Cell Respiration / Q000502:physiology / Q000528:radiation effects; D002736:Chloroplasts / Q000378:metabolism*; D008027:Light; D008928:Mitochondria / Q000378:metabolism*; D010788:Photosynthesis / Q000502:physiology*; D045322:Photosynthetic Reaction Center Complex Proteins / Q000378:metabolism / Q000528:radiation effects; D015398:Signal Transduction / Q000502:physiology / Q000528:radiation effects
D002241:Carbohydrates; D045322:Photosynthetic Reaction Center Complex Proteins