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Protective role of Panax ginseng extract on lipid peroxidation and antioxidant status in polyethylene glycol induced Spathiphyllum leaves

Paper ID Volume ID Publish Year Pages File Format Full-Text
4886 255 2006 6 PDF Available
Title
Protective role of Panax ginseng extract on lipid peroxidation and antioxidant status in polyethylene glycol induced Spathiphyllum leaves
Abstract

The aim of this study was to examine the possible antioxidant capacities of tissue cultured mountain ginseng (TCMG) root extract in acclimatised and potted plants of Spathiphyllum cannifolium, stressed by the application of polyethylene glycol (PEG). Plants were treated with 0% PEG (control), 10% PEG and 10% PEG plus with TCMG (63.5 mg/kg day) for a period of 10 and 20 days. The TCMG root extract was supplemented (63.5 mg/kg everyday) and the levels of thiobarbituric acid reactive substances (TBARS), hydrogen peroxide (H2O2) and antioxidant enzymes were estimated in PEG induced S. cannifolium. PEG treated plants showed an induced accumulation of TBARS resulting in an inhibition of CAT, GR, GPx and GST activity indicating a clear oxidative stress. A significant increase in the activities of SOD, APX, G-POD, GPx, was observed in the leaves supplemented with TCMG root extract in PEG induced S. cannifolium indicating the ability of TCMG root extracts to ameliorate stress conditions. PEG treated plants reduced photosynthetic efficiency (Fv/Fm), indicating a down-regulation of photosynthesis of plant. Net CO2 uptake (A), stomatal conductance (g), transpiration rate (E), relative water content (RWC) and leaf osmotic potential (LOP) were also reduced in PEG-treated plant. However, these parameters were well protected in plants treated with PEG plus TCMG root extract treated plant. These results confirm the effectiveness of TCMG root extract supplementation in detoxifying oxidative damage, which is produced excessively in PEG-induced S. cannifolium. Therefore, roots of Panax ginseng are considered as a good source of antioxidant and can be produced on a large scale and, probably useful for human health.

Keywords
APX, ascorbate peroxidase; CAT, catalase; CDNB, 1-chloro-2,4-dinitrobenzene; DTNB, 5,5′-dithiobis(2-nitrobenzoic acid); G-POD, guaiacol peroxidase; GR, glutathione reductase; GPx, glutathione peroxidase; GST, glutathione S-transferase; MDA, malondialdehyd
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Protective role of Panax ginseng extract on lipid peroxidation and antioxidant status in polyethylene glycol induced Spathiphyllum leaves
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Publisher
Database: Elsevier - ScienceDirect
Journal: Biochemical Engineering Journal - Volume 32, Issue 3, 1 December 2006, Pages 143–148
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us