title: [Involvement of hydrogen peroxide in the regulation of coexpression of alternative oxidase and rotenone-insensitive NADH dehydrogenase in tomato leaves and calluses].
abstract: The involvement of active oxygen forms in the regulation of the expression of mitochondrial respiratory chain components, which are not related to energy storing, has been in vitro and in vivo studied in Lycopersicum esculentum L. The highest level of transcription of genes encoding alternative oxidase and NADH dehydrogenase has been observed in green tomato leaves. It has been shown that even low H2O2 concentrations activate both aoxlalpha and ndb1 genes, encoding alternative oxidase and external mitochondrial rotenone-insensitive NADH dehydrogenase, respectively. According to our results, in the case of an oxidative stress, alternative oxidase and NADH dehydrogenase are coexpressed in tomato plant tissues, and active oxygen forms serve as the secondary messengers of their coexpression.
authors: A T
authors: AT
authors: Eprintsev
authors: E V
authors: EV
authors: Mal'tseva
authors: A S
authors: AS
authors: Shatskikh
authors: V N
authors: VN
authors: Popov
mesh_terms: D042967:Electron Transport Complex I / Q000096:biosynthesis*; D015971:Gene Expression Regulation, Enzymologic / Q000187:drug effects* / Q000502:physiology; D018506:Gene Expression Regulation, Plant / Q000187:drug effects* / Q000502:physiology; D006861:Hydrogen Peroxide / Q000494:pharmacology*; D018551:Solanum lycopersicum / Q000166:cytology / Q000201:enzymology*; D024101:Mitochondrial Proteins; D016877:Oxidants / Q000494:pharmacology*; D010088:Oxidoreductases / Q000096:biosynthesis*; D018515:Plant Leaves / Q000166:cytology / Q000201:enzymology*; D010940:Plant Proteins / Q000096:biosynthesis*; D000099188:Alternative Oxidase
chemical_list: D042967:Electron Transport Complex I; D006861:Hydrogen Peroxide; D024101:Mitochondrial Proteins; D016877:Oxidants; D010088:Oxidoreductases; D010940:Plant Proteins; D000099188:Alternative Oxidase