<EM>Ginkgo biloba</EM> seedling tolerance to high-temperature stress using salicylic acid

CAO Fu-liang; OU Zu-lan

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Volume 25 Issue 6

Dec. 2008

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Article Navigation > Journal of Zhejiang A&F University > 2008 > 25(6): 756-759

CAO Fu-liang, OU Zu-lan. Ginkgo biloba seedling tolerance to high-temperature stress using salicylic acid[J]. Journal of Zhejiang A&F University, 2008, 25(6): 756-759.

Citation:

CAO Fu-liang, OU Zu-lan. Ginkgo biloba seedling tolerance to high-temperature stress using salicylic acid[J]. Journal of Zhejiang A&F University, 2008, 25(6): 756-759.

Ginkgo biloba seedling tolerance to high-temperature stress using salicylic acid

1.
College of Forest Resources and Environment，Nanjing Forestry University，Nanjing 210037，Jiangsu，China

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Corresponding author: CAO Fu-liang
Publish Date: 2008-12-20

Abstract

To determine tolerance，Ginkgo biloba seedlings were sprayed with salicylic acid （SA） and then subjected to high-temperature stress. Electrical conductivity，malondialdehyde（MDA） content，superoxide dismutase（SOD） activity，ascorbic acid（ASA） and soluble proteins and carbohydrates were determined. The 2 year-old seedlings were sprayed by SA at 0（the control），100 or 200 μmol·L－1 for 4 times （twice for one day） in July of 2007. Results showed that：SA at 100 μmol·L－1 increased SOD activity and ASA content，significantly（P＜0.05）more efficient than the control and 200 μmol·L－1；SA at 100 and 200 μmol·L－1 restrained（P＜0.05） the increase of electrical conductivity，significantly（P＜0.05） lower than the control. In addition，compared with the control，treated seedling leaves showed higher（P＜0.05） soluble protein content and lower（P＜0.05） soluble carbohydrates content. All of these results indicated that pretreatment with SA could increase the tolerance of G. biloba seedlings to high-temperature stress.［Ch，3 fig. 21 ref.］
- botany,
- Ginkgo biloba,
- salicylic acid（SA）,
- high-temperature stress,
- physio-biochemical effect

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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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Ginkgo biloba seedling tolerance to high-temperature stress using salicylic acid

1. College of Forest Resources and Environment，Nanjing Forestry University，Nanjing 210037，Jiangsu，China

Corresponding author: CAO Fu-liang

Publish Date: 2008-12-20

Key words:

Abstract: To determine tolerance，Ginkgo biloba seedlings were sprayed with salicylic acid （SA） and then subjected to high-temperature stress. Electrical conductivity，malondialdehyde（MDA） content，superoxide dismutase（SOD） activity，ascorbic acid（ASA） and soluble proteins and carbohydrates were determined. The 2 year-old seedlings were sprayed by SA at 0（the control），100 or 200 μmol·L－1 for 4 times （twice for one day） in July of 2007. Results showed that：SA at 100 μmol·L－1 increased SOD activity and ASA content，significantly（P＜0.05）more efficient than the control and 200 μmol·L－1；SA at 100 and 200 μmol·L－1 restrained（P＜0.05） the increase of electrical conductivity，significantly（P＜0.05） lower than the control. In addition，compared with the control，treated seedling leaves showed higher（P＜0.05） soluble protein content and lower（P＜0.05） soluble carbohydrates content. All of these results indicated that pretreatment with SA could increase the tolerance of G. biloba seedlings to high-temperature stress.［Ch，3 fig. 21 ref.］

CAO Fu-liang, OU Zu-lan. Ginkgo biloba seedling tolerance to high-temperature stress using salicylic acid[J]. Journal of Zhejiang A&F University, 2008, 25(6): 756-759.

Citation:

CAO Fu-liang, OU Zu-lan. Ginkgo biloba seedling tolerance to high-temperature stress using salicylic acid[J]. Journal of Zhejiang A&F University, 2008, 25(6): 756-759.

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Ginkgo biloba seedling tolerance to high-temperature stress using salicylic acid

1. College of Forest Resources and Environment，Nanjing Forestry University，Nanjing 210037，Jiangsu，China

Corresponding author: CAO Fu-liang

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Ginkgo biloba seedling tolerance to high-temperature stress using salicylic acid

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Ginkgo biloba seedling tolerance to high-temperature stress using salicylic acid

1. College of Forest Resources and Environment，Nanjing Forestry University，Nanjing 210037，Jiangsu，China

Corresponding author: CAO Fu-liang

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