Stimulation of steviol glycoside accumulation in Stevia rebaudiana by red LED light

被引：59

作者：

Ceunen, Stijn ^{[1
]}

Werbrouck, Stefaan ^{[2
]}

Geuns, Jan M. C. ^{[1
]}

机构：

[1] Katholieke Univ Leuven, Lab Funct Biol, B-3001 Heverlee, Belgium

[2] Univ Ghent, Plant Biotechnol Lab, Univ Coll Ghent, B-9000 Ghent, Belgium

来源：

JOURNAL OF PLANT PHYSIOLOGY | 2012年 / 169卷 / 07期

关键词：

Accumulation pattern; Photoperiodic response; Phytochrome; Stevia rebaudiana; Steviol glycosides; BERTONI; BIOSYNTHESIS; PHOTOPERIOD; PLANTS; SEEDS;

D O I：

10.1016/j.jplph.2012.01.006

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

The aim of this study was to determine whether steviol glycoside accumulation is under phytochrome control. The results indicate that Stevia rebaudiana Bertoni plants grown under short-day conditions showed precocious flowering and stagnation of steviol glycoside accumulation. Long night interruption by red LED light stimulated and sustained the vegetative growth as well as the accumulation of steviol glycosides in the leaves. After 7 weeks of treatment, steviol glycoside content was about two-fold higher in LED-treated plants than in the short-day control group. The effects of red LED light were measured both in a greenhouse and in a phytotron, irrespective of cultivar-specific differences. Therefore, it can be concluded that a mid-night interruption by red LED light during short photoperiods provides an easy and inexpensive method to increase vegetative leaf biomass production with an increased steviol glycoside yield. (C) 2012 Elsevier GmbH. All rights reserved.

引用

页码：749 / 752

页数：4

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