Understory light and root ginsenosides in forest-grown Panax quinquefolius

被引：69

作者：

Fournier, AR

Proctor, JTA

Gauthier, L

Khanizadeh, S

Bélanger, A

Gosselin, A

Dorais, M

机构：

[1] Univ Laval, Agr & Agri Food Canada, Hort Res Ctr, Quebec City, PQ G1K 7P4, Canada

[2] Univ Guelph, Dept Plant Agr, Guelph, ON N1G 2W1, Canada

[3] Fraises Ile Orleans Inc, Ile Orleans, PQ G0A 3Z0, Canada

[4] Agr & Agri Food Canada, Hort Res & Dev Ctr, St Jean, PQ J3B 3E6, Canada

来源：

PHYTOCHEMISTRY | 2003年 / 63卷 / 07期

关键词：

Panax quinquefolius L; araliaceae; hemispherical photography; light; intensity; light quality; sunflecks; saponins; ginsenosides;

D O I：

10.1016/S0031-9422(03)00346-7

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

The objective of this study was to determine the relationship between light levels in the understory of a broadleaf forest and the content of six ginsenosides (Rg(1), Re, Rb-1, Re, Rb-2. and Rd) in 1- and 2-year-old American ginseng (Panax quinquefolius L.) roots. Our results revealed that ginsenoside contents in 1- and 2 year-old roots collected in September were significantly related to direct and total light levels, and duration of sunflecks. At this time, the effect of light levels accounted for up to 48 and 62% of the variation in ginsenoside contents of I- and 2-year-old American ginseng roots. Also, red (R) and far red (FR) light, and the R:FR ratio significantly affected Rd, Re, and Rg(1) contents in 2-year-old roots, accounting for up to 40% of the variation in ginsenoside contents. Crown Copyright (C) 2003 Published by Elsevier Ltd. All rights reserved.

引用

页码：777 / 782

页数：6

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