Chloroplast adenosine triphosphatase

Adenosine triphosphate is utilized in portions of the cell other than the mitochondria and chloroplasts therefore, the utilization as well as the production of ATP is of importance to total adenylate status. As a result, it became important to consider total ATP content of plants. When detached pinto bean leaves were exposed to 1,0 yl/1 ozone for 30 min total ATP content of the leaf decreased (12), Since ozone altered leaf ATP content it could also alter the leaf s adenylate status we wished to determine if a correlation existed between alteration in adenylates and the change previously reported in photosynthesis and respiration. Since ATP is readily broken down by adenosine triphosphatases, a reliable method of extraction and quantitative method of ATP analysis was designed for the study (8),... 

VK Vambutas and E Racker (1965) Stimulation of photophosphorylation by a preparation of a latent Ca -dependent adenosine triphosphatase from chloroplasts. J Biol Chem 240 2660-2667... 

M Yoshida, N Sone, H Hirata, Y Kagawa and N Ui (1979) Subunit structure of adenosine triphosphatase. Comparison of the structure in thermophilic bacterium PS3 with those of mitochondria, chloroplasts, and Escherichia coli. J Bbl Chem 254 9525-9533... 

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Sakiirai H, Shinohara K, Hisabori T and Shinohara K (l98l) Enhancement of adenosine triphosphatase activity of purified chloroplast coupling factor 1 in an aqueous organic solvent. J. Biochem. 90, 95 102. 

Petrack B, CrastonA, Sheppy F and Farron F (1965) Studies on the hydrolysis of adenosine triphosphatase by spinach chloroplasts, J.Biol.Chem. 240, 906-914. 

Nelson N, Nelson H and Packer E (1972) Partial resolution of enzymes catalyzing photophosphorylation Magnesium -adenosine triphosphatase properties of heat-activated coupling factor 1 from chloroplasts, J. Biol, Chem. 247, 6506-6510. 

Lanzetta PA, Alvarez LJ, Reinach PS, and Candia OA (1979) An improved assay for nanomole amounts of inorganic phosphate. Anal, Biochem, 100, 95-97, Sabnis DD, Gordon M, and Galston AW (1970) Localization of adenosine triphosphatase activity on the chloroplast envelope in tendrils of Pisum sativum. Plant Physiol, 45, 25-32,... 

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