Changes of Carbohydrates Metabolism and Enzymes Activities in Low Temperature Storage for Bulbs of Lilium Oriental Hybrids

ACTA HORTICULTURAE SINICA ›› 2006, Vol. 33 ›› Issue (3): 571-576.

• 研究论文 • Previous Articles Next Articles

Changes of Carbohydrates Metabolism and Enzymes Activities in Low Temperature Storage for Bulbs of Lilium Oriental Hybrids

Xia Yiping¹;Huang Chunhui¹;He Guifang^{1, 2};Zheng Huijun^{1, 3}

( ¹Department of Horticulture, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang 310029,China; ²Husbandry and Agronomy College of Qinghai University, Xining, Qinghai 810016, China; ³Arts Department, Hangzhou College of Vocation Technology, Hangzhou, Zhejiang 310018, China)

Received:2005-09-19 Revised:2006-01-05 Online:2006-06-25 Published:2006-06-25

Abstract

Abstract: Carbohydrate contents and related enzymes activities were performed to investigate the effect of low temperature storage on the bulbspdormancy of Oriental Lily‘Sorbonne’. Bulbs were stored in moist peat moss for 8 weeks at 2℃, 5℃ and 8℃, respectively. The starch contents decreased continuously in interior and exterior scales, while the contents of total soluble carbohydrates and reducing sugar were increased. Activities of CAT, POD and SOD declined significantly, especially in the firstweek of cold storage. A peak value in α-amylase activity appeared in the 3rd week. Low activity levels of all enzymes presented after the 4th week. The results indicated that no obvious difference between the three low temperatures, and overcoming dormancyin bulbs of oriental lily‘Sorbonne’started in the 7th week.

Key words: Oriental lily, Bulb, Cold storage, Overcoming dormancy, Carbohydrate metabolism, Enzyme activity

Xia Yiping;Huang Chunhui;He Guifang;;Zheng Huijun;. Changes of Carbohydrates Metabolism and Enzymes Activities in Low Temperature Storage for Bulbs of Lilium Oriental Hybrids[J]. ACTA HORTICULTURAE SINICA, 2006, 33(3): 571-576.

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Changes of Carbohydrates Metabolism and Enzymes Activities in Low Temperature Storage for Bulbs of Lilium Oriental Hybrids

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