BIOAVAILABILITY OF CADMIUM 
    Cation Exchange Capacity (CEC)
    pH
    Soil Amendments
    Competitive Cations
    Fertilizer
    Mycorrhizae
    Chelation
       Phytochelatins (PCs)
       Phytochelatin Effectiveness
       Role of Sulfur in PCs
       Oxidative Stress
       Translocation
       Metallothioneins
       Organic Acids
       EDTA / EGTA

CADMIUM TOLERANCE AND
ACCUMULATION IN PLANTS
    Cell Wall Binding
    Reduced Transport
    Compartmentalization
    Chelation
    Phytoextraction factors
       Table 1.  Plant Accumulation
       Hyperaccumulators

CONCLUSIONS

LINKS

BIBLIOGRAPHY

Oxidative stress

     Since glutathione normally plays a role in quenching reactive oxygen species (superoxide dismutase, glutathione peroxidase), the depletion of glutathione in response to Cd exposure (Scheller, et al. 1987) may lead to damage via reactive oxygen species (DeVos and Schot, 1981). Perhaps increasing  activity of other antioxidants, such as carotenoids, could improve tolerance to Cd while not interfering with uptake.
 

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