Scientia Agricultura Sinica ›› 2007, Vol. 40 ›› Issue (2): 352-357 .

• HORTICULTURE • Previous Articles     Next Articles

Relationship between NAD Kinase and NAD(H), NADP(H) and Active Oxygen during Ripening and Senescence of Postharvest Strawberry Fruit

  

  1. 贵州大学食品科学系
  • Received:2006-02-17 Revised:1900-01-01 Online:2007-02-10 Published:2007-02-10

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Abstract: Abstracts: The changes of NADK activity during ripening and senescence of posth- arvest strawberry fruit at 4℃ and 20℃ and the content of NAD(H) , NADP(H), H2O2 , malondialdehyde(MDA) and O2- production rate were studied . The results showed that the NADK activity and the contents of NADP(H) in strawberry at low temperature（4℃） was more than those at 20℃, but the content of NAD（H）at 4℃ was less than that at 20℃. Meanwhile, the O2- production rate and the content of H2O2 and MDA at 4℃ was slower and less than those at 20℃. It implied that NADK regulated the process of oxidation metabolism and ripening and senescence of strawberry probably by influencing the content and proportion of NAD（H）and NADP(H) , the O2- production rate and content of H2O2 .

Key words: Strawberry, Ripening and senescence, NAD kinase, NAD(H), NADP(H), Active oxygen

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