title: How and why does mitochondrial respiratory chain respond to light?
abstract: The plant mitochondrial respiratory system changes in its activity in response to light. This response has been thought to be important for ensuring cooperative function with the photosynthetic system. A recent study addressing light responses of the respiratory chain in Arabidopsis thaliana provided further insight into the role of mitochondria in illuminated leaves. Notably, the non-phosphorylating alternative oxidase is rapidly induced when plants are exposed to the high light stress, and appears to play a key role in keeping cellular redox balance.
authors.affiliation: Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Bunkyo-ku, Tokyo, Japan. yoshida.k.ao@m.titech.ac.jp
authors.forename: Keisuke
authors.initials: K
authors.lastname: Yoshida
authors.forename: Ichiro
authors.initials: I
authors.lastname: Terashima
authors.forename: Ko
authors.initials: K
authors.lastname: Noguchi
mesh_terms: D017360:Arabidopsis / Q000378:metabolism / Q000528:radiation effects; D004579:Electron Transport / Q000528:radiation effects; D008027:Light; D008928:Mitochondria / Q000378:metabolism* / Q000528:radiation effects*; D024101:Mitochondrial Proteins / Q000378:metabolism; D008954:Models, Biological; D010084:Oxidation-Reduction / Q000528:radiation effects; D010088:Oxidoreductases / Q000378:metabolism; D010788:Photosynthesis / Q000528:radiation effects; D018515:Plant Leaves / Q000378:metabolism / Q000528:radiation effects; D010940:Plant Proteins / Q000378:metabolism; D013312:Stress, Physiological / Q000528:radiation effects; D000099188:Alternative Oxidase
chemical_list: D024101:Mitochondrial Proteins; D010088:Oxidoreductases; D010940:Plant Proteins; D000099188:Alternative Oxidase