期刊
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
卷 52, 期 11, 页码 3606-3611出版社
AMER CHEMICAL SOC
DOI: 10.1021/jf035185i
关键词
ascorbate peroxidase; catalase; citrus; ethylene; glutathione reductase; low-temperature storage; phenylalanine ammonia-lyase; peroxidase; superoxide reductase
The effects of applying ethylene (2 muL L-1) during cold storage of Fortune mandarins on the development of chilling-induced peel damage and on changes in the activities of the enzymes of the antioxidant system, superoxide dismutase, catalase (CAT), ascorbate peroxidase, guaiacol peroxidase, and glutathione reductase, and on phenylalanine ammonia-lyase (PAL) have been investigated. Chilling damage was reduced by applying ethylene during fruit storage at 1.5 degreesC. PAL activity increased in response to cold stress and was higher in fruit held under ethylene than under air during the whole storage period, whereas CAT was temporarily higher in ethylene-treated fruit. In contrast, the activities of the other enzymes were not increased by ethylene. The global results suggest that the ethylene-induced chilling tolerance in Fortune mandarins might be due to increased PAL and CAT activities.
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