Effects of cadmium stress on growth and physiological characteristics of Panax ginseng / 中草药
Chinese Traditional and Herbal Drugs
;
(24): 661-665, 2016.
Article
in Chinese
| WPRIM
| ID: wpr-853711
ABSTRACT
Objective:
To investigate the effects of cadmium (Cd) stress on the growth and physiological characteristics of Panax ginseng (ginseng).Methods:
Two-year old ginseng was cultivated in barrels in phytotrone with different concentration of Cd (0, 0.3, 1.0, 2.0, and 4.0 mg/kg) soil for a whole growth period. In red fruit stage, the contents of biomass and SPAD, the activities of anti-oxidant enzymes, and contents of malondialdehyde (MDA) were determined and analyzed.Results:
With Cd concentration increasing, the relative growth rate of ginseng expressed a slowly decreasing trend, and showed negative linear correlations with Cd stress level (P stem > root.Conclusion:
Ginseng has an adaptability to the contaminated soil with Cd (≤1.0 mg/kg), and at this time ginseng can enhance the activity of anti-oxidant enzyme and other physiological and biochemical responses to eliminate reactive oxygen species, maintain stability of the cell membrane, alleviate the harm from the stress of Cd; Though with Cd (>1 mg/kg), the contents of MDA could increase significantly, and the oxidative damage of ginseng is very serious. The growth of plants is affected, resulting in a decline in ginseng biomass.
Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
Chinese Traditional and Herbal Drugs
Year:
2016
Type:
Article
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