บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Effects of inhibitors on the carbon dioxide-stimulation of ethylene-forming enzyme activity in fruit of Japanese pear and apple.

Tian, M. S.; Hewett, E. W.; Lill, R. E.;

Postharvest Biology and Technology Year: 1994 Vol: 4 Issue: 1-2 Pages: 13-21 Ref: 24 ref.

1994

บทคัดย่อ

Effects of inhibitors on the carbon dioxide-stimulation of ethylene-forming enzyme activity in fruit of Japanese pear and apple.

ABSTRACT :

 

Low concentrations (0.01 mM) of Co2+ ions stimulated, but higher concentrations (>0.02 mM) inhibited EFE activity and ethylene production in both Japanese pear (cv. Hosui) and apple (cv. Granny Smith) fruit discs. CO2 stimulated EFE activity but did not reverse the inhibition caused by Co2+ ions. AgNO3 inhibited ethylene production of apple fruit discs. Low concentrations (<0.25 mM) of Ag+ stimulated, but higher concentrations (0.5 and 1 mM) inhibited EFE activity in discs of both fruits. CO2 did not reverse the inhibitory effect of Ag+ (1 mM). 2,5-Norbornadiene (NDE) at 0.5% (v/v) inhibited EFE activity in discs from both fruits. CO2 partially reversed the NDE inhibition in discs of Hosui and Granny Smith fruits stored at 1 plus or minus 1 deg C for a short period. The possible mechanisms of the interactions between CO2 and the inhibitors on EFE activity and ethylene receptors are discussed.