Knowledge Management System of Kunming Institute of Botany,CAS
| Comparative Physiological and Proteomic Analyses of Poplar (Populus yunnanensis) Plantlets Exposed to High Temperature and Drought | |
Li, Xiong1,2,3 ; Yang, Yunqiang1,2,3; Sun, Xudong1,2; Lin, Huaming1,2,3; Chen, Jinhui4; Ren, Jian5; Hu, Xiangyang1,2; Yang, Yongping1,2
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| 2014-09-16 | |
| 发表期刊 | PLOS ONE
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| 卷号 | 9期号:9 |
| 摘要 | Plantlets of Populus yunnanensis Dode were examined in a greenhouse for 48 h to analyze their physiological and proteomic responses to sustained heat, drought, and combined heat and drought. Compared with the application of a single stress, simultaneous treatment with both stresses damaged the plantlets more heavily. The plantlets experienced two apparent response stages under sustained heat and drought. During the first stage, malondialdehyde and reactive oxygen species (ROS) contents were induced by heat, but many protective substances, including antioxidant enzymes, proline, abscisic acid (ABA), dehydrin, and small heat shock proteins (sHSPs), were also stimulated. The plants thus actively defended themselves against stress and exhibited few pathological morphological features, most likely because a new cellular homeostasis was established through the collaborative operation of physiological and proteomic responses. During the second stage, ROS homeostasis was overwhelmed by substantial ROS production and a sharp decline in antioxidant enzyme activities, while the synthesis of some protective elements, such as proline and ABA, was suppressed. As a result, photosynthetic levels in P. yunnanensis decreased sharply and buds began to die, despite continued accumulation of sHSPs and dehydrin. This study supplies important information about the effects of extreme abiotic environments on woody plants. |
| 学科领域 | Plant Science |
| DOI | 10.1371/journal.pone.0107605 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000344317700065 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.kib.ac.cn/handle/151853/18249 |
| 专题 | 中国科学院青藏高原研究所昆明部 |
| 作者单位 | 1.Chinese Acad Sci, Kunming Inst Bot, Key Lab Plant Biodivers & Biogeog East Asia, Kunming, Peoples R China 2.Chinese Acad Sci, Kunming Inst Bot, Germplasm Bank Wild Species, Plant Germplasm & Genom Ctr, Kunming, Peoples R China 3.Univ Chinese Acad Sci, Beijing, Peoples R China 4.Nanjing Forestry Univ, Key Lab Forest Genet & Biotechnol, Nanjing, Jiangsu, Peoples R China 5.Yunnan Agr Univ, Dept Grassland Sci, Kunming, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Xiong,Yang, Yunqiang,Sun, Xudong,et al. Comparative Physiological and Proteomic Analyses of Poplar (Populus yunnanensis) Plantlets Exposed to High Temperature and Drought[J]. PLOS ONE,2014,9(9). |
| APA | Li, Xiong.,Yang, Yunqiang.,Sun, Xudong.,Lin, Huaming.,Chen, Jinhui.,...&Yang, Yongping.(2014).Comparative Physiological and Proteomic Analyses of Poplar (Populus yunnanensis) Plantlets Exposed to High Temperature and Drought.PLOS ONE,9(9). |
| MLA | Li, Xiong,et al."Comparative Physiological and Proteomic Analyses of Poplar (Populus yunnanensis) Plantlets Exposed to High Temperature and Drought".PLOS ONE 9.9(2014). |
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