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| Effects of drought stress on growth and physiological characteristics, and total saponins accumulation of Ballonflower |
| Hits 1529 Download times 1374 Received:June 25, 2015 |
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| DOI
10.11656/j.issn.1672-1519.2015.11.12 |
| Key Words
ballonflower;drought stress;physiological characteristics;growth trait;ballonflower total saponins |
| Author Name | Affiliation | E-mail | | ZHANG Jian | College of Chinese Herbal Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
College of Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China
Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin 300457, China | | | ZHANG Bo | College of Chinese Herbal Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China | | | ZHOU Wen-gui | College of Chinese Herbal Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China | | | YIN Fei | College of Chinese Herbal Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China | | | MA Lin | College of Chinese Herbal Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China | | | LI Xing-lin | College of Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China
Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin 300457, China | lxlszf@tust.edu.cn |
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| Abstract
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| [Objective] To explore the effects of drought stress on seed germination and seedling growth of ballonflower, and to analyze the physiological mechanism of drought stress on growth and development of ballonflower and the accumulation characteristics of saponins. [Methods] The seeds of ballonflower and the seedling were treated with 5%, 10%, 15%, 20% and 25% PEG 6000, then the growth traits index and physiologic index in the process of seed germination and seedling growth and the secondary product, i.e. ballonflower total saponins were measured. [Results] With the increase of PEG stress concentration, seed germination was inhibited, the germination rate and relative germination rate were decreased;among the various physiological indexes, proline, MDA, and total saponins showed increasing trends. The activities of SOD, CAT and POD all presented a rising and then decreasing tendency. [Conclusion] Ballonflower can tolerate some degree of drought stress. Moderate drought stress is good for the accumulation of total saponins of ballonflower seedlings. |
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