LIGHT INFLUENCE ON SUCCINATE DEHYDROGENASE ACTIVITY IN MAIZE LEAVES

• Main Authors: Popov V.N., Eprintsev A.T., Fedorin D.N., Leonova Yu.A.
• Format: Article
• Language: English
• Published: "Vikol publishing" ST Kolesnichenko V.V. 2005-09-01
• Series: Journal of Stress Physiology & Biochemistry
• Subjects: Mitochondria; respiration; succinate dehydrogenase; light; regulation
• Online Access: http://www.jspb.ru/issues/2005/N1/JSPB_2005_1_30-36.pdf

Photosynthesis and respiration participates in energy production by plants undo different light conditions. It looks quite important to provide a balanced regulation of these processes. It was show in presented study that succinate dehydrogenase activity drops down in intact leaves undo intensive light/ There is no direct influence of light to purified enzyme. It was found that low concentrations of ATP (2 - 5 mkM) activated succinate dehydrogenase (SDH) but concentration more than 30 mkM inhibit it. Presented data supports idea that enzyme regulation is provided by oscillations of cell metabolites concentrations.