The role of ethylene in the prevention of chilling injury in nectarines.
Zhou HongWei, Dong Li, Ben-Arie, R. and Lurie, S.
Journal of Plant Physiology Year: 2001 Vol: 158 Issue: 1 Pages: 55-61 Ref: 40 ref.
2000
บทคัดย่อ
Two treatments were found to alleviate woolliness in nectarines of Prunus persica cv. Flavortop. One was holding the fruits for 2 days at 20 deg C before 0 deg C storage (delayed storage) and the second was having ethylene (14 ppm) present during cold storage (ethylene). Immediately stored fruit (control) had 88% woolliness while 7% of delayed storage and 15% of ethylene fruit showed woolliness. The severity of the injury in individual fruits was closely related to inhibition of ethylene evolution. Woolly fruit had higher levels of 1-aminocyclopropanecarboxylic acid (ACC) and lower ACC oxidase [1-aminocyclopropane-1-carboxylate oxidoreductase] (EC 1.4.3) activity than healthy fruit. It is suggested that ethylene is essential for promoting the proper sequence of cell wall hydrolysis necessary for normal fruit softening. This is in contrast to chilling injury in other fruits, whereby ethylene is often a sign of incipient damage. Respiration was also found to be associated with chilling injury, in
that fruit with woolliness had a depressed respiration.