Oxidation of reduced diphosphopyridine nucleotide by mitochondria from normal & crown-gall tissue cultures of tomato

Respiration and Phosphorylation of Mitochondria from Normal and Crown-Gall Tissue Cultures of Tomato

“…Rapidl oxidation of DPNH also has been reported with mitochondria from skunk cabbage (8), from lupine (15), and from many other plants (28). Spectrophotometric studies on DPNH oxidase, DPNH-cytochrome c reductase, cytochrome c oxidase, and diaphorase activities in mitochondria from normal and crown-gall tissue cultures are discussedl in a forthcoming paper (32).…”

Oxidative Phosphorylation by Mitochondria from Callus and Tumor Tissue Cultures of Rumex acetosa L.

“…Relatively few such investigations have been conducted with plant tumors and their normal counterparts, although explants of these tissues have been grown in vitro for some time and factors affecting their growth have been studied extensively. The isolation from plant tissue cultures of cytoplasmic particles capable of carrying out respiratory reactions (13, 4) has led to studies of the energy metabolism of these particles from normal (callus) and tumor tissues from plants (11,12,5).…”

“…Mitochondria from normal and crown-gall tissues of tomato have been shown to differ in their oxidative and phosphorylative capacities (11,12). Mitochondria from normal tissue cultures of tomato oxidized reduced diphosphopyridine nucleotide and intermediates of the Krebs cycle more rapidly than those from tumor tissue cultures.…”