Preliminary Studies on the Elements of Browning and the Changes in Cellular Texture of Leaf Explant Browning in Phalaenopsis

ACTA HORTICULTURAE SINICA ›› 2005, Vol. 32 ›› Issue (6): 1111-1113.

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Preliminary Studies on the Elements of Browning and the Changes in Cellular Texture of Leaf Explant Browning in Phalaenopsis

Xu Chuanjun;Li Ling;Li Hong;Zhang Mingguang

(¹College of Life Science, South China Normal University, Guagndong Key Laboratory of Biotechnology for Plant Development, Guangzhou 510631, China; ² Fujian Institute of Subtropical Botany, Xiamen 361006, China)

Received:2004-12-10 Revised:2005-01-20 Online:2005-12-25 Published:2005-12-25

Abstract

Abstract: The microstructure of Phalaenopsis sp. was examined with microscope and scanning electron microscope. The results showed that the vascular bundle of browning cell filled with tannin and the upper epidermis shriveled; There are something deposited in parenchyma cell. The colorimetric assay demonstrated that the substance extracted from medium was condensed tannins. With the browning of exp lant, the content of total phenol compounds and the activity of PAL were increased, and the co-relationship analysis showed that they were positive correlation significant at 1% level.

Key words: Phalaenopsis, Browning, Explant, Microstructure, Tannin

CLC Number:

S 68

Xu Chuanjun;Li Ling;Li Hong;Zhang Mingguang. Preliminary Studies on the Elements of Browning and the Changes in Cellular Texture of Leaf Explant Browning in Phalaenopsis[J]. ACTA HORTICULTURAE SINICA, 2005, 32(6): 1111-1113.

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Preliminary Studies on the Elements of Browning and the Changes in Cellular Texture of Leaf Explant Browning in Phalaenopsis

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