Silicon and drought resistance of <em>Phyllostachys violascens</em>

PAN Yue; RONG Jieqing; SHENG Weixing; GUI Renyi

doi:10.11833/j.issn.2095-0756.2013.06.008

Volume 30 Issue 6

Nov. 2013

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PAN Yue, RONG Jieqing, SHENG Weixing, GUI Renyi. Silicon and drought resistance of Phyllostachys violascens[J]. Journal of Zhejiang A&F University, 2013, 30(6): 852-857. doi: 10.11833/j.issn.2095-0756.2013.06.008

Citation:

PAN Yue, RONG Jieqing, SHENG Weixing, GUI Renyi. Silicon and drought resistance of Phyllostachys violascens[J]. Journal of Zhejiang A&F University, 2013, 30(6): 852-857. doi: 10.11833/j.issn.2095-0756.2013.06.008

Silicon and drought resistance of Phyllostachys violascens

doi: 10.11833/j.issn.2095-0756.2013.06.008

1.
The Nurturing Station of the State Key Laboratory of Subtropical Silviculture，Zhejiang A & F University，Lin’an 311300，Zhejiang，China;
2.
Forest Enterprise of Jiande City，Jiande 311600，Zhejiang，China

More Information

Corresponding author: GUI Renyi
Received Date: 2012-11-19
Rev Recd Date: 2013-01-17
Publish Date: 2013-12-20

Abstract

To clarify how silicon（Si） enhances resistance to drought stress，the effects of exogenous Si on physiological and biochemical characteristics，including soluble sugar content，proline （Pro） content，peroxidase（POD） activity，catalase（CAT） activity，and photosynthetic characteristics，of Lei bamboo （Phyllostachys violascens） were determined with drought stress induced by polyethylene glycol （PEG6000） in hydroponic conditions. Treatments were as follows：（1）Control，（2）PEG 6000，（3）PEG 6000 + 1.8 mmolL－1 Si，and （4）PEG 6000 + 5.4 mmolL－1 Si. Results showed that with drought stress, compared to the treatment 1，soluble sugar content increased to 487.89 molg－1（59.00%）（P＜0.05），proline content to 57.52 gg－1 （38.47%）（P＜0.05），and POD activity of treatment 2 to 178.125 nmol mg－1min-1（32.56%）（P＜0.05），but CAT activity decreased to 56.11 molg－1min－1（18.30%）（P＜0.05），and leaf photosynthesis was inhibited. With treatment 3 compared to treatment 2，exogenous Si decreased soluble sugar content （50.31%）（P＜0.05），proline content （35.94%）（P＜0.05），and POD activity （50.88%）（P＜0.05）；and with treatment 4 compared to treatment 2，exogenous Si decreased soluble sugar content（43.69%）（P＜0.05），proline content （44.77%）（P＜0.05），and POD activity （68.42%）（P＜0.05）. However, treatment 3 with exogenous Si increased CAT activity 21.9% more than treatment 2（P＜0.05）；and treatment 4 was 25.87% more than treatment 2（P＜0.05）. Exogenous Si also enhanced leaf photosynthesis. This indicated that Si could increase drought resistance of Lei bamboo.［Ch，4 fig. 1 tab. 26 ref.］
- botany,
- silicon,
- Phyllostachys violascens,
- drought stress,
- physiological and biochemical indexes,
- PEG 6000

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

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Proportional views

Silicon and drought resistance of Phyllostachys violascens

1. The Nurturing Station of the State Key Laboratory of Subtropical Silviculture，Zhejiang A & F University，Lin’an 311300，Zhejiang，China;

2. Forest Enterprise of Jiande City，Jiande 311600，Zhejiang，China

Corresponding author: GUI Renyi

Received Date: 2012-11-19

Rev Recd Date: 2013-01-17

Publish Date: 2013-12-20

Key words:

Abstract: To clarify how silicon（Si） enhances resistance to drought stress，the effects of exogenous Si on physiological and biochemical characteristics，including soluble sugar content，proline （Pro） content，peroxidase（POD） activity，catalase（CAT） activity，and photosynthetic characteristics，of Lei bamboo （Phyllostachys violascens） were determined with drought stress induced by polyethylene glycol （PEG6000） in hydroponic conditions. Treatments were as follows：（1）Control，（2）PEG 6000，（3）PEG 6000 + 1.8 mmolL－1 Si，and （4）PEG 6000 + 5.4 mmolL－1 Si. Results showed that with drought stress, compared to the treatment 1，soluble sugar content increased to 487.89 molg－1（59.00%）（P＜0.05），proline content to 57.52 gg－1 （38.47%）（P＜0.05），and POD activity of treatment 2 to 178.125 nmol mg－1min-1（32.56%）（P＜0.05），but CAT activity decreased to 56.11 molg－1min－1（18.30%）（P＜0.05），and leaf photosynthesis was inhibited. With treatment 3 compared to treatment 2，exogenous Si decreased soluble sugar content （50.31%）（P＜0.05），proline content （35.94%）（P＜0.05），and POD activity （50.88%）（P＜0.05）；and with treatment 4 compared to treatment 2，exogenous Si decreased soluble sugar content（43.69%）（P＜0.05），proline content （44.77%）（P＜0.05），and POD activity （68.42%）（P＜0.05）. However, treatment 3 with exogenous Si increased CAT activity 21.9% more than treatment 2（P＜0.05）；and treatment 4 was 25.87% more than treatment 2（P＜0.05）. Exogenous Si also enhanced leaf photosynthesis. This indicated that Si could increase drought resistance of Lei bamboo.［Ch，4 fig. 1 tab. 26 ref.］

Silicon and drought resistance of Phyllostachys violascens

doi: 10.11833/j.issn.2095-0756.2013.06.008

Abstract

References

Proportional views

通讯作者: 陈斌, bchen63@163.com

Related

Proportional views

Silicon and drought resistance of Phyllostachys violascens

doi: 10.11833/j.issn.2095-0756.2013.06.008

1. The Nurturing Station of the State Key Laboratory of Subtropical Silviculture，Zhejiang A & F University，Lin’an 311300，Zhejiang，China;

2. Forest Enterprise of Jiande City，Jiande 311600，Zhejiang，China

Corresponding author: GUI Renyi

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Silicon and drought resistance of Phyllostachys violascens

doi: 10.11833/j.issn.2095-0756.2013.06.008

Abstract

Relative Article

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通讯作者: 陈斌, bchen63@163.com

Related

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Silicon and drought resistance of Phyllostachys violascens

doi: 10.11833/j.issn.2095-0756.2013.06.008

1. The Nurturing Station of the State Key Laboratory of Subtropical Silviculture，Zhejiang A & F University，Lin’an 311300，Zhejiang，China; 2. Forest Enterprise of Jiande City，Jiande 311600，Zhejiang，China

Corresponding author: GUI Renyi

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1. The Nurturing Station of the State Key Laboratory of Subtropical Silviculture，Zhejiang A & F University，Lin’an 311300，Zhejiang，China;

2. Forest Enterprise of Jiande City，Jiande 311600，Zhejiang，China