Effects of Altitudes on Physiological Indicators of <i>Davidia Involucrata</i> Leaves

ZHANG Shao-xian; SU Zhi-xian; GAO Ju; ZHANG Yue; YANG Jing-tian; WU Qing-gui

doi:10.16779/j.cnki.1003-5508.2013.02.002

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Volume 34 Issue 2

Nov. 2019

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Article Navigation > Journal of Sichuan Forestry Science and Technology > 2013 > 34(2): 10-15

ZHANG Shao-xian, SU Zhi-xian, GAO Ju, ZHANG Yue, YANG Jing-tian, WU Qing-gui. Effects of Altitudes on Physiological Indicators of Davidia Involucrata Leaves[J]. Journal of Sichuan Forestry Science and Technology, 2013, 34(2): 10-15. doi: 10.16779/j.cnki.1003-5508.2013.02.002

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ZHANG Shao-xian, SU Zhi-xian, GAO Ju, ZHANG Yue, YANG Jing-tian, WU Qing-gui. Effects of Altitudes on Physiological Indicators of Davidia Involucrata Leaves[J]. Journal of Sichuan Forestry Science and Technology, 2013, 34(2): 10-15. doi: 10.16779/j.cnki.1003-5508.2013.02.002

Effects of Altitudes on Physiological Indicators of Davidia Involucrata Leaves

doi: 10.16779/j.cnki.1003-5508.2013.02.002

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School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China;Ecological Security and Protection Key Laboratory of Sichuan Province, Mianyang Normal University, Mianyang 621000, Sichuan, China;Environment Monitoring Station of Sichuan, Suining 629000, Sichuan, China

Received Date: 2012-10-18

Abstract

To explore the physiological adaptation mechanisms of Davidia involucrate to altitudes, studies were made of the relationship between pigment, anthocyanin, malondialdehyde, proline, superoxide dismutase, and UV-absorbing compounds contents of Davidia involucrata leaf blades and altitudes. The research results showed that chlorophyll a and b, carotenoids, MDA content would decrease with the increase of an altitude, the maximum value of chlorophyll a/b ratio occurred at an altitude of 1 650 m, while the maximum contents of MDA occurred at an altitude of 1 590 m; anthocyanins, UV-absorbing compounds and Pro contents would reduce after first increasing with increasing altitude. The maximum contents of anthocyanins and Pro occurred at an altitude of 1 650 m, while the maximum content of UV-absorbing compounds occurred at an altitude of 1 590 m; leaf superoxide dismutase (SOD) activity would gradually increase with altitude increasing. In general, when Davidia involucrate got stress from adverse environment at high altitudes, it could protect itself by internal regulation in a certain altitude range.
- Davidia involucrate Baill.;
- Pigment;
- Anthocyanin;
- Malondialdehyde;
- Free proline;
- Superoxide dismutase;
- UV-absorbing compounds
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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Effects of Altitudes on Physiological Indicators of Davidia Involucrata Leaves

doi: 10.16779/j.cnki.1003-5508.2013.02.002

School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China;Ecological Security and Protection Key Laboratory of Sichuan Province, Mianyang Normal University, Mianyang 621000, Sichuan, China;Environment Monitoring Station of Sichuan, Suining 629000, Sichuan, China

Received Date: 2012-10-18

Key words:

Abstract: To explore the physiological adaptation mechanisms of Davidia involucrate to altitudes, studies were made of the relationship between pigment, anthocyanin, malondialdehyde, proline, superoxide dismutase, and UV-absorbing compounds contents of Davidia involucrata leaf blades and altitudes. The research results showed that chlorophyll a and b, carotenoids, MDA content would decrease with the increase of an altitude, the maximum value of chlorophyll a/b ratio occurred at an altitude of 1 650 m, while the maximum contents of MDA occurred at an altitude of 1 590 m; anthocyanins, UV-absorbing compounds and Pro contents would reduce after first increasing with increasing altitude. The maximum contents of anthocyanins and Pro occurred at an altitude of 1 650 m, while the maximum content of UV-absorbing compounds occurred at an altitude of 1 590 m; leaf superoxide dismutase (SOD) activity would gradually increase with altitude increasing. In general, when Davidia involucrate got stress from adverse environment at high altitudes, it could protect itself by internal regulation in a certain altitude range.