American Ginseng (Panax quinquefolium L.), the “Other” Ginseng.

Suits, Stephanie A.; Corbit, Rebecca; Wood, Andrew J.

doi:10.1663/0013-0001(2003)057[0143:agpqlt]2.0.co;2

Cited by 7 publications

(6 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These dammarene-type triterpenes are divided into two classes of compounds: those composed of two sugars, the 20(S)-protopanaxadiols (including Rb 1, Rb2, Rc, and Rd); and those with three sugars, the 20(S)-protopanaxatriols (Re and Rg 1 ) (Fournier et al, 2003). Ginsenosides are found in all organs of the plant (Li et al, 1996) and act as antifungal (Nicol et al, 2002) and antimicrobial agents (Suits, 2003). Studies have reported that concentrations of ginsenosides vary depending on geography (Li et al, 1996;Mudge et al, 2001;Yuan et al, 2001), season (Kim et al, 1981;Li and Wardle, 2002), plant age (Li and Wardle, 2002), soil conditions (Konsler et al, 1990;Li et al, 1996;Li and Mazza, 1999), and light levels (Fournier et al, 2003).…”

mentioning

confidence: 99%

Elevated temperatures increase leaf senescence and root secondary metabolite concentrations in the understory herb, Panax quinquefolius (Araliaceae)

Jochum¹,

Mudge²,

Thomas³

2007

American Journal of Botany

View full text Add to dashboard Cite

The response of understory species to elevated temperatures is not well understood but is important because these plants are highly sensitive to their growth conditions. Three-year-old plants of Panax quinquefolius, an understory herb endemic to the eastern deciduous forests of North America, were grown in a greenhouse at 25/208C (day/night) or 30/258C for one growing season and analyzed each month. Plants grown at high temperatures had an early onset of leaf senescence and therefore accumulated less carbon. From May to July, P. quinquefolius grown at high temperatures had decreased photosynthesis (52%), stomatal conductance (60%), and root and total biomass (33% and 28%, respectively) compared to plants grown at low temperatures. As P. quinquefolius prepared to overwinter, plants grown at high temperatures had less root biomass (53%) than plants in low temperatures. The amount of storage-root ginsenosides was unaffected by temperature, and differences in storage root size may explain why plants grown at high temperatures had greater concentrations of storage root ginsenosides (49%) than plants grown at low temperatures. Panax quinquefolius is clearly sensitive to a 58C increase in temperature, and therefore other understory species may be negatively impacted by future increases in global temperature.

show abstract

mentioning

confidence: 99%

Elevated temperatures increase leaf senescence and root secondary metabolite concentrations in the understory herb, Panax quinquefolius (Araliaceae)

Jochum¹,

Mudge²,

Thomas³

2007

American Journal of Botany

View full text Add to dashboard Cite

show abstract

“…These dammarene-type triterpenes are divided into two classes of compounds: those composed of two sugars, the 20(S)-protopanaxadiols (including Rb1, Rb2, Rc, and Rd); and those with three sugars, the 20(S)-protopanaxatriols (Re and Rg 1 ) (Fournier et al, 2003). Ginsenosides are found in all organs of the plant (Li et al, 1996) and act as antifungal (Nicol et al, 2002) and antimicrobial agents (Suits, 2003). Studies have reported that concentrations of ginsenosides vary depending on geography (Li et al, 1996;Mudge et al, 2001;Yuan et al, 2001), season (Kim et al, 1981;Li and Wardle, 2002), plant age (Li and Wardle, 2002), soil conditions (Konsler et al, 1990;Li et al, 1996;Li and Mazza, 1999), and light levels (Fournier et al, 2003).…”

mentioning

confidence: 99%

Elevated temperatures increase leaf senescence and root secondary metabolite concentrations in the understory herb Panax quinquefolius (Araliaceae)

Jochum

Mudge

Thomas

2007

American J of Botany

169

View full text Add to dashboard Cite

The response of understory species to elevated temperatures is not well understood but is important because these plants are highly sensitive to their growth conditions. Three-year-old plants of Panax quinquefolius, an understory herb endemic to the eastern deciduous forests of North America, were grown in a greenhouse at 25/20°C (day/night) or 30/25°C for one growing season and analyzed each month. Plants grown at high temperatures had an early onset of leaf senescence and therefore accumulated less carbon. From May to July, P. quinquefolius grown at high temperatures had decreased photosynthesis (52%), stomatal conductance (60%), and root and total biomass (33% and 28%, respectively) compared to plants grown at low temperatures. As P. quinquefolius prepared to overwinter, plants grown at high temperatures had less root biomass (53%) than plants in low temperatures. The amount of storage-root ginsenosides was unaffected by temperature, and differences in storage root size may explain why plants grown at high temperatures had greater concentrations of storage root ginsenosides (49%) than plants grown at low temperatures. Panax quinquefolius is clearly sensitive to a 5°C increase in temperature, and therefore other understory species may be negatively impacted by future increases in global temperature.

show abstract

“…American ginseng (Panax quinquefolius L.) produces secondary metabolites called ginsenosides. These are saponins of the steroidal family, which act as anti-microbial [1] and anti-herbivory agents [2]. Of the greater than 30 different ginsenoside compounds described [3], several have been documented as having anti-inflammatory and anti-diabetic [4], anti-tumorigenic [5] or chemopreventive properties within the human body [6].…”

Section: Introductionmentioning

confidence: 99%

Comparing Ginsenoside Production in Leaves and Roots of Wild American Ginseng (<i>Panax quinquefolius</i>)

Searels¹,

Keen²,

Horton³

et al. 2013

AJPS

View full text Add to dashboard Cite

American ginseng, Panax quinquefolius L., is an herbaceous perennial species that is destructively harvested for its bioactive compounds called ginsenosides. The demand for this herb fosters illegal poaching and over-harvesting that reduces genetic variability and population viability. Five wild populations in western North Carolina were studied to better understand the production of ginsenosides in leaf and root tissues. Total ginsenoside concentration was significantly higher in leaves than roots, though total yield was higher in roots due to greater root biomass. However, some ginsensosides (Rb2, Rd and Re) had higher or more consistent yields in leaves than roots, so might be developed into a sustainable source of these medicinally-active compounds. Additionally, we identified regional root chemotypes that differed in the production of the ginsenosides Rg1 and Re and could be developed into regional cultivars depending on the desired panel of ginsenosides.

show abstract

American Ginseng (Panax quinquefolium L.), the “Other” Ginseng.

Cited by 7 publications

References 3 publications

Elevated temperatures increase leaf senescence and root secondary metabolite concentrations in the understory herb, Panax quinquefolius (Araliaceae)

Elevated temperatures increase leaf senescence and root secondary metabolite concentrations in the understory herb, Panax quinquefolius (Araliaceae)

Elevated temperatures increase leaf senescence and root secondary metabolite concentrations in the understory herb Panax quinquefolius (Araliaceae)

Comparing Ginsenoside Production in Leaves and Roots of Wild American Ginseng (<i>Panax quinquefolius</i>)

Contact Info

Product

Resources

About

American Ginseng (Panax quinquefolium L.), the “Other” Ginseng.

Cited by 7 publications

References 3 publications

Elevated temperatures increase leaf senescence and root secondary metabolite concentrations in the understory herb, Panax quinquefolius (Araliaceae)

Elevated temperatures increase leaf senescence and root secondary metabolite concentrations in the understory herb, Panax quinquefolius (Araliaceae)

Elevated temperatures increase leaf senescence and root secondary metabolite concentrations in the understory herb Panax quinquefolius (Araliaceae)

Comparing Ginsenoside Production in Leaves and Roots of Wild American Ginseng (&lt;i&gt;Panax quinquefolius&lt;/i&gt;)

Contact Info

Product

Resources

About

Comparing Ginsenoside Production in Leaves and Roots of Wild American Ginseng (<i>Panax quinquefolius</i>)