Effect of low light intensity on growth and accumulation of secondary metabolites in roots of Glycyrrhiza uralensis Fisch

被引：70

作者：

Hou, Jun-ling ^{[1
,2
]}

Li, Wei-dong ^{[1
,2
]}

Zheng, Qiao-yun ^{[1
,2
]}

Wang, Wen-quan ^{[1
,2
]}

Xiao, Bin ^{[1
,2
]}

Xing, Dan ^{[1
,2
]}

机构：

[1] Beijing Univ Chinese Med, Sch Chinese Pharm, Beijing 100102, Peoples R China

[2] Minist Educ, Engn Res Ctr Good Agr Practice Chinese Crude Drug, Beijing 100102, Peoples R China

来源：

BIOCHEMICAL SYSTEMATICS AND ECOLOGY | 2010年 / 38卷 / 02期

关键词：

Biomass; Chlorophyll; Glycyrrhiza uralensis; Growth; Low light intensity; Secondary metabolites; CARBON NUTRIENT BALANCE; SPECTRAL QUALITY; STRESS; PLANTS; PHOTOSYNTHESIS; IRRADIANCE; TREES;

D O I：

10.1016/j.bse.2009.12.026

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

070307 [化学生物学]; 071010 [生物化学与分子生物学];

摘要：

Effects of low light intensity on growth and accumulation of secondary metabolites of a medicinal plant Glycyrrhiza uralensis Fisch. were investigated. Hydroponic-cultivated one year-old rhizome seedlings were grown under three low irradiances, 200, 100, and 50 mu mol m(-2) s(-1) for 135 days. Control plants were cultured under natural light conditions. Low light intensity stress decreased leaf thickness, photosynthesis and biomass, but increased leaf area and chlorophyll concentrations. Low light intensity also significantly increased accumulation of glycyrrhizic acid and liquiritin in the root, while the maximum values of both secondary metabolites were obtained under an irradiance of 100 mu mol m(-2) s(-1). Concentrations of both secondary metabolites were negatively correlated with root biomass. The results suggested that G. uralensis could endure an environment with low light intensity and suitable light control might increase the secondary metabolite contents within agroforestry systems. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：160 / 168

页数：9

共 34 条

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