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https://irlib.pccu.edu.tw/handle/987654321/26675
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| 题名: | Study of sponge gourd ascorbate peroxidase and winter squash superoxide dismutase under respective flooding and chilling stresses |
| 作者: | Lin, KH (Lin, Kuan-Hung)
Kuo, WS (Kuo, Wen-Shuo)
Chiang, CM (Chiang, Chih-Ming)
Hsiung, TC (Hsiung, Tung-Chuan)
Chiang, MC (Chiang, Ming-Chang)
Lo, HF (Lo, Hsiao-Feng) |
| 贡献者: | Grad Inst Biotechnol |
| 关键词: | Antioxidant enzyme
Flood stress
Chilling stress
Bitter melon
Sponge gourd
Winter squash |
| 日期: | 2013-10-23 |
| 上传时间: | 2014-02-24 11:37:28 (UTC+8) |
| 摘要: | The objectives of this work were to study the responses of ascorbate peroxidase (APX), catalase (CAT), superoxide dismutase (SOD), glutathione reductase (GR), and physiological parameters of bitter melon (BM), sponge gourd (SG), and winter squash (WS) under waterlogged and low temperature conditions. The BM and SG plants were subjected to 0-72 h flooding treatments. Moreover, BM and WS plants were exposed to chilling at 12/7 C (day/night) for 0-72 h. The results show that different genotypes responded differently to environmental stress according to their various antioxidant enzymes and physiological parameters. The activity of APX in roots and leaves of SG plants significantly higher than that of BM plants during continuous flooding. Significant increases in SOD activity in leaves of WS plants were also observed throughout the entire chilling duration compared to BM plants. On the basis of our observations, we conclude that increased APX and SOD activities provide SG and WS plants with increased waterlogging and chilling stress tolerance, respectively. Both APX and SOD activities can be used for selecting BM lines with the best tolerances to water logging and chilling stresses. Crown Copyright (C) 2013 Published by Elsevier B.V. All rights reserved. |
| 關聯: | SCIENTIA HORTICULTURAE Volume: 162 Pages: 333-340 |
| 显示于类别: | [Graduate Institute of Biotechnology ] journal articles
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