南方农业学报2012，Vol.43Issue(11)：1664-1667,4.DOI:10.3969/j:issn.2095-1191.2012.11.1664
蔷薇植物对高温胁迫的生理响应
Physiological responses of rose plants to high temperature stress
摘要
Abstract
Four different rose plants and their corresponding physiological responses towards high temperature stress were observed and analyzed in this study in order to provide gerraplam resources for culturing high heat-resistant rose varieties and to provide references for solving high temperature barrier problems. [Method] Four rose species, R. multiflora T. var. carnea, R. hybrid, R. multiflora T., and R. multiflora 'Nagasima No.3 ' , were treated under 40? high temperature stress; their corresponding superoxide dismutase (SOD) activity, free proline content, and relative electric conductivity changes in plant leaves were determined and analyzed. [ Result]After 24 h of high temperature stress treatment, the SOD activities in the leaves of 'Nagasima No.3' and R. multiflora T. var. camea were significantly higher than those in the leaves of R. hybrid and R. multiflora T. At the same time, the free proline content in 'Nagasima No.3' leaves reached maximum compared to that of the other rose species. After 48-72 h of high temperature stress treatment, the relative electric conductivity changes in the leaves of ' Nagasima No.3' and R. multiflora T. var. carnea were significantly lower than those in the leaves of R. hybrid and R. multiflora T, therefore, 'Nagasima No.3' and R. multiflora T. var. camea exhibited strong heat-resistance. [Conclusion ] The SOD activity, free proline content, and relative electric conductivity changes in plant leaves could determine the heat-resistance in rose plants, which, out of the tested rose varieties, 'Nagasima No.3' and R. multiflora T. var. carnea displayed stronger heat-resistance quality than the other two varieties. This test result could provide theoretical reference for the future selection of heat-resistant rose varieties.关键词
蔷薇植物/高温胁迫/生理响应/耐热性Key words
rose plant/ high temperature stress/ physiological stress/ heat-resistance分类
农业科技引用本文复制引用
任飞,邓少虹,卢春玲,于文进..蔷薇植物对高温胁迫的生理响应[J].南方农业学报,2012,43(11):1664-1667,4.基金项目
教育部留学回国人员科研启动基金项目(教外司留[2009]1001号) （教外司留[2009]1001号）
广西留学回国人员科学基金项目(桂科回0832002) （桂科回0832002）
