Plant and Soil

, Volume 150, Issue 1, pp 25–32 | Cite as

Uptake and distribution of cadmium in maize inbred lines

  • P. J. Florijn
  • M. L. Van Beusichem
Research Article


Genotypic variation in uptake and distribution of cadmium (Cd) was studied in 19 inbred lines of maize (Zea mays L.). The inbred lines were grown for 27 days on an in situ Cd-contaminated sandy soil or for 20 days on nutrient solution culture with 10 µg Cd L-1. The Cd concentrations in the shoots showed large genotypic variation, ranging from 0.9 to 9.9 µg g-1 dry wt. for the Cd-contaminated soil and from 2.5 to 56.9 µg g-1 dry wt. for the nutrient solution culture. The inbred lines showed a similar ranking for the Cd concentrations in the shoots for both growth media (r2=0.89). Two main groups of inbreds were distinguished: a group with low shoot, but high root Cd concentrations (shoot: 7.4±5.3 µg g-1 dry wt.; root: 206.0±71.2 µg g-1 dry wt.; ‘shoot Cd excluder’) and a group with similar shoot and root Cd concentrations (shoot: 54.2±3.4 µg g-1 dry wt.; root: 75.6±11.2 µg g-1 dry wt.; ‘non-shoot Cd excluder’). The classification of the maize inbred lines and the near equal whole-plant Cd uptake between the two groups demonstrates that internal distribution rather than uptake is causing the genotypic differences in shoot Cd concentration of maize inbred lines. Zinc (Zn), a micronutrient chemically related to Cd, showed an almost similar distribution pattern for all maize inbred lines. The discrepancy in the internal distribution between Cd and Zn emphasizes the specificity of the Cd distribution in maize inbred lines.

Key words

cadmium Cd distribution maize inbred lines nutrient solution culture soil Zea mays L. 


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Copyright information

© Kluwer Academic Publishers 1993

Authors and Affiliations

  • P. J. Florijn
    • 1
  • M. L. Van Beusichem
    • 1
  1. 1.Department of Soil Science and Plant NutritionWageningen Agricultural UniversityWageningenThe Netherlands

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