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Cadmium uptake by different rice genotypes that produce white or dark grains.
J Environ Sci (China). 2004; 16(6):962-7.JE

Abstract

A pot experiment was conducted to investigate cadmium (Cd) uptake by different rice cultivars that produce white or dark grains. Four cultivars with white grains (hereafter, white rice) and five cultivars with dark colors (hereafter dark rice) were selected for this experiment. Three levels of soil Cd concentrations, background (0), 5 and 10 mg/kg, were used. After harvest, plant biomass, tissue concentrations of Cd, Ca, Fe, Cu and Zn were analyzed. The results showed that Cd concentrations are significantly different between different genotypes, but when comparing the Cd concentrations for the two groups, no significant difference was found. For other divalent cations, Ca concentrations in dark rice were higher than those in white ones (P < 0.001 for shoots, P = 0.037 for roots); Fe concentrations in dark rice were also higher than those in white ones (P = 0.001 either in shoot or root); Zn concentrations in shoot of dark rice were higher than those in white ones, but no significant difference in roots. The total molar concentrations of divalent cations in dark rice were also significantly higher than in white rice. The potential benefit of higher Ca and Fe concentrations in dark rice and similar Cd concentrations in both groups is also discussed in this paper.

Authors+Show Affiliations

Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

15900729

Citation

Cui, Yu-Jing, et al. "Cadmium Uptake By Different Rice Genotypes That Produce White or Dark Grains." Journal of Environmental Sciences (China), vol. 16, no. 6, 2004, pp. 962-7.
Cui YJ, Zhu YG, Smith FA, et al. Cadmium uptake by different rice genotypes that produce white or dark grains. J Environ Sci (China). 2004;16(6):962-7.
Cui, Y. J., Zhu, Y. G., Smith, F. A., & Smith, S. E. (2004). Cadmium uptake by different rice genotypes that produce white or dark grains. Journal of Environmental Sciences (China), 16(6), 962-7.
Cui YJ, et al. Cadmium Uptake By Different Rice Genotypes That Produce White or Dark Grains. J Environ Sci (China). 2004;16(6):962-7. PubMed PMID: 15900729.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Cadmium uptake by different rice genotypes that produce white or dark grains. AU - Cui,Yu-Jing, AU - Zhu,Yong-Guan, AU - Smith,F Andrew, AU - Smith,Sally E, PY - 2005/5/20/pubmed PY - 2005/7/20/medline PY - 2005/5/20/entrez SP - 962 EP - 7 JF - Journal of environmental sciences (China) JO - J Environ Sci (China) VL - 16 IS - 6 N2 - A pot experiment was conducted to investigate cadmium (Cd) uptake by different rice cultivars that produce white or dark grains. Four cultivars with white grains (hereafter, white rice) and five cultivars with dark colors (hereafter dark rice) were selected for this experiment. Three levels of soil Cd concentrations, background (0), 5 and 10 mg/kg, were used. After harvest, plant biomass, tissue concentrations of Cd, Ca, Fe, Cu and Zn were analyzed. The results showed that Cd concentrations are significantly different between different genotypes, but when comparing the Cd concentrations for the two groups, no significant difference was found. For other divalent cations, Ca concentrations in dark rice were higher than those in white ones (P < 0.001 for shoots, P = 0.037 for roots); Fe concentrations in dark rice were also higher than those in white ones (P = 0.001 either in shoot or root); Zn concentrations in shoot of dark rice were higher than those in white ones, but no significant difference in roots. The total molar concentrations of divalent cations in dark rice were also significantly higher than in white rice. The potential benefit of higher Ca and Fe concentrations in dark rice and similar Cd concentrations in both groups is also discussed in this paper. SN - 1001-0742 UR - https://www.unboundmedicine.com/medline/citation/15900729/Cadmium_uptake_by_different_rice_genotypes_that_produce_white_or_dark_grains_ DB - PRIME DP - Unbound Medicine ER -
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