Effect of kinetin (6-furfuryl aminopurine) on changes in activities of some enzymes of lipid-carbohydrate metabolism in relation to growth of isolated cotyledons of vegetable marrow ( Cucurbita pepo L.)

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Of the 0–35 ppm concentration employed, kinetin (6-furfurylaminopurine) at 25 ppm resulted in the maximum increase in size and fresh weight of excised cotyledons of vegetable marrow ( Cucurbita pepo L.). The lipolysis of total lipids and triglycerides increased on kinetin treatment. The content of reducing sugars rose markedly and that of sucrose reduced drastically with kinetin treatment. No lipase activity could be detected in the control. The activity of this enzyme was always higher with kinetin treatment alone as compared to the combined action of kinetin and detergent. The activities of isocitrate lyase and invertase were maximum at the 3rd day of incubation and even more pronounced with kinetin treatment. The activities of sucrose phosphate synthase paralleled with the amount of sucrose.