Cold-Induced Climacteric Rise of Ethylene Metabolism in Granny Smith Apples

Abstract

Changes in ethylene biosynthesis induced by cold treatment (EquationSource% MathType!MTEF!2!1!+- % feaagCart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn % hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr % 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq-Jc9 % vqaqpepm0xbba9pwe9Q8fs0-yqaqpepae9pg0FirpepeKkFr0xfr-x % fr-xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaaGinamaama % aabaGaam4BaaaacaWGdbaaaa!387F!]]</EquationSource><EquationSource Format="TEX"><![CDATA[$$4\underline o C$$) have been studied on Granny Smith apples. Cold treatment caused a sharp increase in ACC content both in peel and pulp tissues. It was paralleled by only a slight increase in ethylene production and MACC levels showing the inhibition of EFE and malonyl transferase activity at EquationSource% MathType!MTEF!2!1!+- % feaagCart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn % hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr % 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq-Jc9 % vqaqpepm0xbba9pwe9Q8fs0-yqaqpepae9pg0FirpepeKkFr0xfr-x % fr-xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaaGinamaama % aabaGaam4BaaaacaWGdbaaaa!387F!]]</EquationSource><EquationSource Format="TEX"><![CDATA[$$4\underline o C$$. Changes in ethylene biosynthesis were accompanied by significant changes in protein synthesis and particularly by the accumulation at EquationSource% MathType!MTEF!2!1!+- % feaagCart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn % hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr % 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq-Jc9 % vqaqpepm0xbba9pwe9Q8fs0-yqaqpepae9pg0FirpepeKkFr0xfr-x % fr-xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaaGinamaama % aabaGaam4BaaaacaWGdbaaaa!387F!]]</EquationSource><EquationSource Format="TEX"><![CDATA[$$4\underline o C$$ of two polypeptides of 50 and 55 kD and by the disappearance of polypeptides near 35 kD. Rewarming caused a sharp increase in ethylene production probably related to the activation of EFE. In contrast to non treated fruits, rewarmed fruits presented a typical climacteric evolution. This climacteric behaviour was representative of a rapid maturation of the EFE system at EquationSource% MathType!MTEF!2!1!+- % feaagCart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn % hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr % 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq-Jc9 % vqaqpepm0xbba9pwe9Q8fs0-yqaqpepae9pg0FirpepeKkFr0xfr-x % fr-xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaaGinamaama % aabaGaam4BaaaacaWGdbaaaa!387F!]]</EquationSource><EquationSource Format="TEX"><![CDATA[$$4\underline o C$$.KeywordsEthylene ProductionCold TreatmentEthylene BiosynthesisApple FruitPulp TissueThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.