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ACTA HORTICULTURAE SINICA ›› 2006, Vol. 33 ›› Issue (5): 1087-1089.

• 研究报告 • Previous Articles     Next Articles

Relationships between the Sucrose Phosphate Synthase and Ripening, Senescence of Banana Fruits

Li Wen1, 2;Shao Yuanzhi2;Zhuang Junping1;Chen Weixin1*   

  1. (1 South China Agricultural University, Guangdong Province Key Laboratory for Postharvest Science and Technology of Fruits and Vegetables, Guangzhou, Guangdong 510642, China; 2College of Life Science and Agriculture, Hainan University, Haikou, Hainan 570228, China)
  • Received:2005-12-07 Revised:2006-02-20 Online:2006-10-25 Published:2006-10-25

Abstract: The relationships between the activity of sucrose phosphate synthase ( SPS) and resp iration rate, softening and sucrose accumulation during banana ripening were studied. Itwas shown that the application of ethylene absorbent not only inhibited the rate of respiration, delayed the fruit softening and the accumulation of sucrose ( P < 0.01) , but also inhibited the activity of SPS, the peak of which appearing 3 days later, and the activity of SPS being decreased significantly than that of normal ripening fruits. The peak of SPS activity in fruits treated with propylene appeared 9 days earlier than that in fruits with normal ripening. The rate of respiration of fruit, the decline of fruit firmness and sucrose accumulation were found to be accelerated by the
treatment with propylene. The SPS was found to be correlated closely with the ripening, senescence, sugar accumulation and softening of the fruits.

Key words: Banana, Fruit, SPS, Ripening, Senescence