role of alternative oxidase in modulating carbon use efficiency and growth during macronutrient stress in tobacco cells

• Published in: Journal of experimental botany Vol. 56; no. 416; pp. 1499 - 1515
• Main Authors: Sieger, Stephen M, Kristensen, Brian K, Robson, Christine A, Amirsadeghi, Sasan, Eng, Edward W. Y, Abdel-Mesih, Amal, Møller, Ian M, Vanlerberghe, Greg C
• Format: Journal Article
• Language: English
• Published: Oxford Oxford University Press 01.06.2005; Oxford Publishing Limited (England)
• Subjects: Alternative oxidase; Biological and medical sciences; Carbon; Carbon - physiology; carbon use efficiency; Cell growth; Cell Growth Processes; Cell Growth Processes - physiology; Cell lines; cell respiration; Cells, Cultured; cultured cells; cytology; Dehydrogenases; electron transfer; Electron Transport; Energy conservation; Enzyme Induction; enzymology; Fundamental and applied biological sciences. Psychology; Gels; Gene Expression Regulation, Plant; genetics; growth; Metabolism; Mitochondria; Mitochondrial Proteins; Nicotiana - cytology; Nicotiana - enzymology; Nicotiana - genetics; Nicotiana tabacum; nitrogen; Nitrogen - physiology; Nutrient availability; Nutrient balance; nutrient deficiencies; Nutrient status; nutrient stress; Oxidases; Oxidative Stress; oxidoreductases; Oxidoreductases - genetics; Oxidoreductases - metabolism; phosphorus; Phosphorus - physiology; Photosynthesis, respiration. Anabolism, catabolism; physiology; Plant cells; plant mitochondria; plant nutrition; Plant physiology and development; Plant Proteins; Plant Proteins - metabolism; Plants, Genetically Modified; Plastids; proteomics; redox potential; Research Papers; Respiration; Time Factors; tobacco; tobacco cells; transgenic plants; Oxidative stress; tobacco cells; Enzyme; Growth; Oxidase; plant mitochondria; Alternative oxidase; Nicotiana tabacum; Carbon balance; Mitochondria; Dicotyledones; Angiospermae; Proteomics; Spermatophyta; Carbohydrate; Oxidoreductases; Solanaceae; Respiration; nutrient stress
• ISSN: 0022-0957; 1460-2431
• DOI: 10.1093/jxb/eri146

When wild-type (wt) tobacco (Nicotiana tabacum cv. Petit Havana SR1) cells are grown under macronutrient (P or N) limitation, they induce large amounts of alternative oxidase (AOX), which constitutes a non-energy-conserving branch of the respiratory electron transport chain. To investigate the signi...