Climate Change Data Portal
DOI | 10.17957/IJAB/15.1098 |
Effects of drought on Physiological Responses of Bretschneidera sinensis | |
Zhang, Sha1,2; Chen, Hongfeng1; Liu, Juxiu1; Liu, Dongming1; Yan, Huiling1; Wang, Faguo1 | |
发表日期 | 2019 |
ISSN | 1560-8530 |
EISSN | 1814-9596 |
卷号 | 22期号:3页码:545-552 |
英文摘要 | Bretschneidera sinensis Hemsl. is a rare and endangered species in China. Understanding the effects of drought on its physiological responses is required for the introduction and protection of this species with future climate change. In order to know the drought effects on plasma membrane permeability (PMP), malondialdehyde (MDA), proline, superoxide dismutase (SOD) and chlorophyll (chl) in B. sinensis, 100 biennial seedlings of B. sinensis were divided into five groups and subjected to different treatments, i.e., a reduction in the amount of water applied on a daily basis. The soluble sugar, soluble starch and nonstructural carbohydrate (NSC) contents were also measured prior to the death of B. sinensis. The results indicated that, as the drought continued and intensified, the proline and SOD contents changed slightly, while the PMP and the MDA content increased constantly, especially under severe drought. The chl content also showed a decreasing trend. Consequently, B. sinensis became highly sensitive to the drought because the repair mechanisms could not keep pace with the damage. When close to death, the B. sinensis seedlings did not use high levels of NSCs. Although, NSCs did not decline, but gradually transferred from leaf to stem and then to roots. Meanwhile, the composition of NSCs changed i.e., soluble starch was degraded to soluble sugar, which indicates an adaptive mechanism in a long-term drought environment. It was concluded that B. sinensis is highly sensitive to the drought because of several physiological changes in B. sinensis, however, carbon starvation would not occur in B. sinensis during drought. (C) 2019 Friends Science Publishers |
WOS研究方向 | Agriculture ; Life Sciences & Biomedicine - Other Topics |
来源期刊 | INTERNATIONAL JOURNAL OF AGRICULTURE AND BIOLOGY
![]() |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/91016 |
作者单位 | 1.Chinese Acad Sci, Key Lab Plant Resources Conservat Sustainable Uti, South China Bot Garden, Guangzhou 510650, Guangdong, Peoples R China; 2.Univ Chinese Acad Sci, Beijing 10049, Peoples R China |
推荐引用方式 GB/T 7714 | Zhang, Sha,Chen, Hongfeng,Liu, Juxiu,et al. Effects of drought on Physiological Responses of Bretschneidera sinensis[J],2019,22(3):545-552. |
APA | Zhang, Sha,Chen, Hongfeng,Liu, Juxiu,Liu, Dongming,Yan, Huiling,&Wang, Faguo.(2019).Effects of drought on Physiological Responses of Bretschneidera sinensis.INTERNATIONAL JOURNAL OF AGRICULTURE AND BIOLOGY,22(3),545-552. |
MLA | Zhang, Sha,et al."Effects of drought on Physiological Responses of Bretschneidera sinensis".INTERNATIONAL JOURNAL OF AGRICULTURE AND BIOLOGY 22.3(2019):545-552. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。