Autoinhibition of Ethylene Formation in Nonripening Stages of the Fruit of Sycomore Fig (Ficus sycomorus L.)

摘要: Differences in the mechanism of ethylene emanation Ficus sycomorus L. during various stages fruit development were investigated by enclosing figs jars. Two distinct patterns found. Pattern a. not capable ripening, neither spontaneously nor as a result physiological treatment (nonripening A and C), concentration jar increased linearly for short time then remained constant. b. ripening (ripening B, D, E), linear increase continued entire period measurement. In nonripening stages, stopped when reached constant value (0.6 mul/l at stage C). Aeration renewed emanation. CO(2) never exceeded 0.5%. Treatment C with 0.6 to 10 exogenous caused immediate complete cessation whereas same did cause any change rate from B D. Gashing (wounding) temporarily changed pattern b.We concluded that acts an autoinhibitor its own production but this does occur stages.