H. Yokoyama, C. Coggins, G. L. Henning
Aug 1, 1971
Citations
1
Influential Citations
38
Citations
Journal
Phytochemistry
Abstract
Abstract 2-(4-Chlorophenylthio)triethylamine hydrochloride (CPTA) has a profound effect on the formation of carotenoids in the fruit of the trigeneric citrus hybrid Sinton citrangequat . When CPTA is applied to the immature green fruit and the fruit is allowed to ripen to full maturity and color, lycopene accumulates as the main pigment and is responsible for the rich color in the flavedo. Synthesis of methylketone carotenoids which normally produce the red color in the flavedo is inhibited. Treatment with CPTA after the fruits had attained near full maturity and color results in the accumulation of lycopene as a major pigment; no response is apparent in the previously formed methylketone carotenoids. Treatment with CPTA at immature green, mature green or nearly mature stages of fruit development, stimulates the synthesis of lycopene as the principal pigment or as a major pigment depending on stage of development.