Impact of Water Stress on Invertase Expression and Carbohydrate Metabolism in Leaves of Tomato Seedling

ACTA HORTICULTURAE SINICA ›› 2002, Vol. 29 ›› Issue (3): 278-279.

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Impact of Water Stress on Invertase Expression and Carbohydrate Metabolism in Leaves of Tomato Seedling

Cheng Zhihui¹;Meng Huanwen¹;Julie D. Scholes²;and Stephen A. Rolfe²

(¹College of Horticulture, Northwest Sci-Tech University of Agriculture and Forestry, Yangling 712100, China;　² Department of Animal and Plant Sciences, The University of Sheffield, Sheffield S10 2 TN, UK)

Received:1900-01-01 Revised:1900-01-01 Online:2002-06-25 Published:2002-06-25

Abstract

Abstract: Changes in invertase expression and carbohydrate metabolism of tomato ( cv. Ailsa Craig) seedling were studied under hydroponic culture with different level of water stress by 5 % , 7. 5 % and 10 % PEG treatment, respectively. The results showed that both soluble acid and apoplastic invertases , and glucose, fructose and sucrose were increased with the increase of water stress. Longer and strong water stress (10 % PEG)
increased invertase activity and soluble sugar content remarkably but decreased starch level .

Key words: Tomato, Seedling, Water stress, Invertase, Carbohydrate metabolism

CLC Number:

S 641. 1

Cheng Zhihui;Meng Huanwen;Julie D. Scholes;and Stephen A. Rolfe. Impact of Water Stress on Invertase Expression and Carbohydrate Metabolism in Leaves of Tomato Seedling[J]. ACTA HORTICULTURAE SINICA, 2002, 29(3): 278-279.

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Impact of Water Stress on Invertase Expression and Carbohydrate Metabolism in Leaves of Tomato Seedling

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