The Changes of Enzymes Activity during the Flower Bud Differentiation of‘Pingguoli’

ACTA HORTICULTURAE SINICA ›› 2001, Vol. 28 ›› Issue (2): 159-160.

• 研究报告 • Previous Articles Next Articles

The Changes of Enzymes Activity during the Flower Bud Differentiation of‘Pingguoli’

Li Bingzhen, Li Xiong, Sun Qinglin, Zhang Jianhua, and Ma Qingzhi

(Department of Bioengineering , Inner Mongolia College of Agriculture and Animal Husbandry , Huhehot 010018)

Received:1900-01-01 Revised:1900-01-01 Online:2001-04-25 Published:2001-04-25

Abstract

Abstract: The change of peroxidases (POD) , catalase (CAT) , IAAoxidase and sucrase activity in leaves during flower bud differentiation of “Pingguoli”was studied. The results showed that POD , IAAoxidase and sucrase activity
were high , but CAT activity was low in the critical period of flower bud differentiation (23 , July) . CAT activity increased , sucrase activity decreased and IAAoxidase , POD activity decreased little during alabastrum , calyx differentiation. POD , IAAoxidase activity gradually increased , sucrase activity didn’t change significantly , CAT activity declined to the lowest during petal , stamen , pistil differentiation.

Key words: Pear, Pyrus pyrifolia Nakai cv. Pingguoli, Flower bud differentiation, Enzymes activity

CLC Number:

Li Bingzhen;Li Xiong;Sun Qinglin;Zhang Jianhua;and Ma Qingzhi. The Changes of Enzymes Activity during the Flower Bud Differentiation of‘Pingguoli’[J]. ACTA HORTICULTURAE SINICA, 2001, 28(2): 159-160.

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The Changes of Enzymes Activity during the Flower Bud Differentiation of‘Pingguoli’

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