Changes in glycosidase activities in ‘Feicheng’ peach (Prunus persica [L.] Batsch) fruit during development and ripening
Bingye Xue, Zhiquan Mao and Huairui Shu
Abstracts of 27th International Horticultural Congress & Exhibition (IHC 2006), August 13-19, 2006, COEX (Convention & Exhibition), Seoul, Korea. 494 pages.
2006
บทคัดย่อ
The experiments were carried out for two years with two cultivars of ‘Feicheng’ peach (Prunus persica [L.] Batsch), which have different softening characteristics during maturation and posthavest storage.Of the two cultivars, ‘Hongli’ is a red fleshed clingstone type which softened faster after harvest than ‘Baili’.‘Baili’ ia a white fleshed cling-stone type which had a longer storage life.Changes of Glycosidases activities in the two cultivars were compared.Activities of a-galactosidase were very high in ‘Feicheng’ peach.Alpha- galactosidase, an enzyme that could bind to cell was ionically, was correlated with decreasing of fruit firmness.Beta- galactosidase occurred in harvested fruit and was related to fruit softening during storage at low temperature.The pattern of glucosidase activity was similar to that of b- galactosidase.No mannosidase activity was detected in ‘Feicheng’ peach.Peroxidase activity was high during pit hardening and then decreased and this changing indicates peroxidase plays role in pit hardening of ‘Feicheng’ peach.