丹参不同生长时期对UV-B辐射的敏感性

应用生态学报

丹参不同生长时期对UV-B辐射的敏感性

刘景玲¹,齐志鸿²,黄晓¹,刘峰华²,刘岩²,梁宗锁^1**

(¹西北农林科技大学生命科学学院, 陕西杨凌 712100; ²天津天士力现代中药资源有限公司, 天津 300402)

出版日期:2014-09-18 发布日期:2014-09-18

UV-B radiation sensitivity of Salvia miltiorrhiza in different growth periods.

LIU Jing-ling¹, QI Zhi-hong², HUANG Xiao¹, LIU Feng-hua², LIU Yan², LIANG Zong-suo^1

(¹College of Life Sciences, Northwest A&F University, Yangling 712100, Shaanxi, China; ²Tianjin Tasly Pharmaceutical Co. Ltd, Tianjin 300402, China)

Online:2014-09-18 Published:2014-09-18

摘要/Abstract

摘要：

以遮阳棚下盆栽药用植物丹参为研究材料,以综合了株高、叶面积和生物量3个形态学指标的敏感性指数SI以及叶片中主要酚酸类物质迷迭香酸(RA)和丹酚酸B(SAB)含量为指标,研究快速生长期和收获期丹参对不同UV-B辐射强度的敏感性差异.结果表明: 随着UV-B辐射增强,敏感性指数SI在快速生长期和收获期均减小,且收获期小于快速生长期;叶片中RA和SAB含量随UV-B辐射增强而增加,收获期的变化幅度大于快速生长期.根部RA和SAB含量在UV-B辐射下减少,且随辐射强度和辐射时间延长而降低,尤其在收获期高强度UV-B处理下,RA和SAB总量分别为对照的10.0%和6.3%.

Abstract: A pot experiment was conducted to investigate the effects of UV-B radiation on sensitive index (SI) synthetically formed by the height, leaf area and biomass, and on the accumulation of rosmarinic acid (RA) and salvianolic acid B (SAB) of Salvia miltiorrhiza in two growth periods. The results showed the SI in the shoot vigorous growth and harvesting periods both decreased with the increasing UV-B radiation, but the SI in the latter period was even less. The RA and SAB contents in the leaves increased with the increasing UV-B radiation, and the increment was greater in the harvesting period than in the shoot vigorous growth period. The RA and SAB contents decreased in the roots, and decreased with the increasing UV-B intensity and duration. Total contents of RA and SAB in roots decreased to 10.0% and 6.3% of the control under the high UV-B intensity in the harvesting period.

刘景玲1,齐志鸿2,黄晓1,刘峰华2,刘岩2,梁宗锁1**. 丹参不同生长时期对UV-B辐射的敏感性[J]. 应用生态学报.

LIU Jing-ling1, QI Zhi-hong2, HUANG Xiao1, LIU Feng-hua2, LIU Yan2, LIANG Zong-suo1. UV-B radiation sensitivity of Salvia miltiorrhiza in different growth periods.[J]. Chinese Journal of Applied Ecology.