1998
DOI: 10.1007/s004250050403
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Chromium accumulation, translocation and chemical speciation in vegetable crops

Abstract: Trivalent chromium (Cr 3 ) is essential for animal and human health, whereas hexavalent Cr (CrO 2À 4 ) is a potent carcinogen and extremely toxic to animals and humans. Thus, the accumulated Cr in food plants may represent potential health hazards to animals and humans if the element is accumulated in the hexavalent form or in high concentrations. This study was conducted to determine the extent to which various vegetable crops absorb and accumulate Cr 3 and CrO 2À 4 into roots and shoots and to ascertain the … Show more

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Cited by 364 publications
(204 citation statements)
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“…Roots accumulate Cr in a quantity 10 -100 folds more than shoots independently on Cr state [31,33]. This preferential distribution is stable and does not depend on either its concentration nor soil properties [29].…”
Section: Chromium In Plantsmentioning
confidence: 92%
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“…Roots accumulate Cr in a quantity 10 -100 folds more than shoots independently on Cr state [31,33]. This preferential distribution is stable and does not depend on either its concentration nor soil properties [29].…”
Section: Chromium In Plantsmentioning
confidence: 92%
“…Chromium may be absorbed by plant roots as Cr(III) or Cr(VI), it is poorly translocated and largely retained in roots, independently of Cr form that has been taken up [26,31,32]. The two ions do not share a common uptake mechanism: the uptake of Cr(III) is largely a passive process, whereas the uptake of Cr(VI) is mediated by low affinity sulphate carriers, specific for the uptake of essential metals [29,30,33,34] and quickly converted to Cr(III) in roots by Fe(III) reductase enzymes [31].…”
Section: Chromium In Plantsmentioning
confidence: 99%
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