Mature green tomato fruit (Lycopersicon esculentum Mill. cv ;Rutgers') were infiltrated with 0.5 milliliters of sterilized, distilled water alone, or containing enough glucose or galactose to allow for a concentration of 400 micrograms per gram fresh weight after infiltration. All fruit showed a transient peak of ethylene production within 6 hours due to the slight wounding by vacuum infiltrati...

Ornithine decarboxylase and arginine decarboxylase activities were measured in roots and buds of tomato (Lycopersicon esculentum Mill. cv. Pearson ms-35) and potato (Solanum tuberosum cv. Desire) plants. In both tomato and potato, the activity of ornithine decarboxylase was the highest at the root tip, decreasing proximally. The same was true for potato buds. In vegetative buds of tomato, the h...

Oxidative cleavage of a 9-c/s xanthophyll probably represents the key regulatory step in abscisic acid (ABA) biosynthesis. A transposon tagged maize (Zea mays) mutant vp14, provided the original DNA sequence data needed to design a VP14 fusion protein capable of catalysing this reaction in vitro. A cDNA encoding a similar protein has now been isolated from a wilt-related tomato (Lycopersicon es...