Short-term UV-B radiation effects on morphology, physiological traits and accumulation of bioactive compounds in Prunella vulgaris L.

Journal of plant interactions

article

Xue-Rong Zhang¹  Yu-Hang Chen¹  Qiao-Sheng Guo¹  Wen-Ming Wang²  Li Liu¹  Jin Fan²  Li-Ping Cao³  Chen Li³ 

[1] Institute of Chinese Medicinal Materials, Nanjing Agricultural University;Rice Research Institute, Sichuan Agricultural University;College of Pharmaceutical Sciences, Chengdu Medical College;Key Laboratory of Small Molecule Special Structure Drugs, Sichuan Institution of Higher Education&Chengdu Medical College

关键词: Prunella vulgaris L.;    UV-B radiation;    morphology;    antioxidants;    secondary metabolite;   

DOI  :  10.1080/17429145.2017.1365179

学科分类：纳米科学和纳米技术

来源: Taylor & Francis

【 摘 要 】

Prunella vulgaris plants (full-bloom stage) were subjected to short-term (15 days) UV-B radiation in a growth chamber. UV-B radiation was effective at enhancing morphological and biomass characteristics and decreasing chlorophyll contents of P. vulgaris. Treatment of P. vulgaris with artificial UV-B radiation significantly increased peroxidase (POD), superoxide dismutase (SOD) and glutathione (GSH) activities compared to the control treatment. UV-B radiation significantly increased the levels of hydrogen peroxide (H2O2), malondialdehyde (MDA) and proline in leaves of P. vulgaris compared to those of control plants. In addition, the contents of total flavonoids, rosmarinic acid, caffeic acid and hyperoside significantly increased under UV-B radiation. The total phenolic levels also increased under UV-B treatment. These results demonstrated that short-term UV-B radiation can enhance production of secondary metabolites in P. vulgaris, resulting in increased spica yield compared to that of control plants.Prunella vulgaris plants (full-bloom stage) were subjected to short-term (15 days) UV-B radiation in a growth chamber. UV-B radiation was effective at enhancing morphological and biomass characteristics and decreasing chlorophyll contents of P. vulgaris. Treatment of P. vulgaris with artificial UV-B radiation significantly increased peroxidase (POD), superoxide dismutase (SOD) and glutathione (GSH) activities compared to the control treatment. UV-B radiation significantly increased the levels of hydrogen peroxide (H2O2), malondialdehyde (MDA) and proline in leaves of P. vulgaris compared to those of control plants. In addition, the contents of total flavonoids, rosmarinic acid, caffeic acid and hyperoside significantly increased under UV-B radiation. The total phenolic levels also increased under UV-B treatment. These results demonstrated that short-term UV-B radiation can enhance production of secondary metabolites in P. vulgaris, resulting in increased spica yield compared to that of control plants.

【 授权许可】

CC BY|CC BY-NC