First defense mechanisms of ornamental species suitable for urban green spaces in China exposed to ozone
文献类型：期刊论文
| 作者 | Zhang, Yulong; Wang, Xiaoke; Yang, Ning ; Cotrozzi, Lorenzo; Ouyang, Zhiyun; Zheng, Feixiang
|
| 刊名 | URBAN FORESTRY & URBAN GREENING
 |
| 出版日期 | 2018-01-12 |
| 卷号 | 36页码:68-75 |
| 关键词 | Ascorbic acid Avoidance Ozone flux Stomatal conductance Stomatal morphology Tolerance |
| ISSN号 | 1618-8667 |
| 文献子类 | Article |
| 英文摘要 | High concentrations of tropospheric ozone (O-3) represent a serious problem in the Northern Hemisphere, especially in hot spots as urban areas of China. In this study, the first defense mechanisms (i.e., stomatal behavior and morphology, ascorbate regulations) of three widely-used ornamental plant species (Cotinus coggygria Scop., Rosa chinensis Jacq., Tagetes erecta L.) to O-3 were evaluated to WA the suitability of these species for utilization in urban green spaces (UGS). Seedlings were exposed to (i) ambient air (AA), (ii) AA + 60 ppb O-3 (AA + 60), and (iii) AA + 120 ppb O-3 (AA + 120) for 60 (C. coggygria and R. chinensis) or 32 days (T. erecta), 9 h d (-1). Considering the different physiological responses and O-3 sensitivity among the species, data of the present study reveal that (i) O-3-induced stomatal closure observed in the three species was not an avoidance-strategy given the lack of a significant relation between g s and O-3 fluxes into the leaves, a feature that confirm the strong negative effects of O-3 on the photosynthetic metabolism previously reported; and (ii) stomatal morphology, as well as ascorbate regulations, seem to play a pivotal role in the responses of the investigated species to O-3". Overall, our study highlights the importance of investigating the first defense mechanisms adopted by plants to cope with urban environmental stresses, in order to direct a correct management of UGS. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/40556]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Zhang, Yulong,Wang, Xiaoke,Yang, Ning,et al. First defense mechanisms of ornamental species suitable for urban green spaces in China exposed to ozone[J]. URBAN FORESTRY & URBAN GREENING,2018,36:68-75. |
| APA | Zhang, Yulong,Wang, Xiaoke,Yang, Ning,Cotrozzi, Lorenzo,Ouyang, Zhiyun,&Zheng, Feixiang.(2018).First defense mechanisms of ornamental species suitable for urban green spaces in China exposed to ozone.URBAN FORESTRY & URBAN GREENING,36,68-75. |
| MLA | Zhang, Yulong,et al."First defense mechanisms of ornamental species suitable for urban green spaces in China exposed to ozone".URBAN FORESTRY & URBAN GREENING 36(2018):68-75. |
入库方式： OAI收割
来源：生态环境研究中心
浏览0
下载0
收藏0
其他版本
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。