The distribution of chromium-51 in lowland rice in relation to the chemical form and to the amount of stable chromium in the nutrient solution

Myttenaere, C.; Mousny, J.M.

doi:10.1007/bf00017944

Cited by 41 publications

(12 citation statements)

References 11 publications

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“…Chromium concentrations in roots and shoots of CrO 2À 4 -supplied plants averaged 170 and 1.7 mg Cr Kg À1 DW, respectively, while those of Cr 3 -supplied plants averaged 110 and 1.1 mg Kg À1 DW, respectively. These results con®rm those obtained earlier by other researchers (Human and Allaway 1973;Myttenaere and Mousny 1974;Lahouti and Peterson 1979;Parr and Taylor 1980). The restriction in the translocation of both Cr forms in plants to the same degree, despite the dierential accumulation in roots and shoots, suggests that interconversion between CrO 2À 4 and Cr 3 is almost certain to occur in roots.…”

Section: Discussionsupporting

confidence: 93%

“…Supporting evidence for this hypothesis comes from Cr uptake studies when Cr was supplied in chelated forms. A marked enhancement in the translocation of Cr to plant tops was observed when CrEDTA, which is not retained by ion exchange, was supplied as compared to the ionic forms of Cr (Myttenaere and Mousny 1974;Athalye et al 1995;Cary et al 1977). In addition, Skengton et al (1976) illustrated that Cr 3 and CrO 2À 4 enter the vascular tissue with diculty; however, once in the xylem, Cr moves more readily.…”

Section: Discussionmentioning

confidence: 93%

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Chromium accumulation, translocation and chemical speciation in vegetable crops

Zayed

Lytle

Qian

et al. 1998

Planta

365

182

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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 dierent chemical forms of Cr in these tissues. Two greenhouse hydroponic experiments were performed using a recirculating-nutrient culture technique that allowed all plants to be equally supplied with Cr at all times. In the ®rst experiment, 1 mg L A1 Cr was supplied to 11 vegetable plant species as Cr 3 or CrO 2À 4 , and the accumulation of Cr in roots and shoots was compared. The crops tested included cabbage (Brassica oleracea L. var. capitata L.), cauli¯ower (Brassica oleracea L. var. botrytis L.), celery (Apium graveolens L. var. dulce (Mill.) Pers.), chive (Allium schoenoprasum L.), collard (Brassica oleracea L. var. acephala DC.), garden pea (Pisum sativum L.), kale (Brassica oleracea L. var. acephala DC.), lettuce (Lactuca sativa L.), onion (Allium cepa L.), spinach (Spinacia oleracea L.), and strawberry (Fragaria´ananassa Duch.). In the second experiment, X-ray absorption spectroscopy (XAS) analysis on Cr in plant tissues was performed in roots and shoots of various vegetable plants treated with CrO 2À 4 at either 2 mg Cr L À1 for 7 d or 10 mg Cr L À1 for 2, 4 or 7 d. The crops used in this experiment included beet (Beta vulgaris L. var. crassa (Alef.) J. Helm), broccoli (Brassica oleracea L. var. Italica Plenck), cantaloupe (Cucumis melo L. gp. Cantalupensis), cucumber (Cucumis sativus L.), lettuce, radish (Raphanus sativus L.), spinach, tomato (Lycopersicon lycopersicum (L.) Karsten), and turnip (Brassica rapa L. var. rapifera Bailey). The XAS speciation analysis indicates that CrO 2À 4 is converted in the root to Cr 3 by all plants tested. Translocation of both Cr forms from roots to shoots was extremely limited and accumulation of Cr by roots was 100-fold higher than that by shoots, regardless of the Cr species supplied. Highest Cr concentrations were detected in members of the Brassicaceae family such as cauli¯ower, kale, and cabbage. Based on our observations and previous ®ndings by other researchers, a hypothesis for the dierential accumulation and identical translocation patterns of the two Cr ions is proposed.

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Section: Discussionsupporting

confidence: 93%

Section: Discussionmentioning

confidence: 93%

Chromium accumulation, translocation and chemical speciation in vegetable crops

Zayed

Lytle

Qian

et al. 1998

Planta

365

182

View full text Add to dashboard Cite

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“…This was explained by the propensity of Cr(III) to bind to cell walls, as Cr(III) was the predominant species detected in roots (Zayed et al, 1998). A marked enhancement in the translocation of Cr to aerial plant organs was observed when Cr(III)-EDTA was supplied as compared to ionic forms of Cr (Myttenaere and Mousny, 1974;Athalye et al, 1995;Srivastava et al, 1999). Thus, Cr(III) uptake showed similar features as Fe(III) uptake, which gave rise to investigate the interaction of both elements in plants.…”

Section: Introductionmentioning

confidence: 87%

Uptake and apoplastic retention of EDTA‐ and phytosiderophore‐chelated chromium(III) in maize

Erenoğlu

Patra

Khodr

et al. 2007

J. Plant Nutr. Soil Sci.

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Increasing the mobilization and root uptake of chromium (Cr) by synthetic and plant-borne chelators might be relevant for the design of phytoremediation strategies on Cr-contaminated sites. Short-term uptake studies in maize roots supplied with 51 CrCl 3 or 51 Cr(III)-EDTA led to higher apoplastic Cr contents in plant roots supplied with 51 CrCl 3 and in Fesufficient plants relative to Fe-deficient plants, indicating that Fe stimulated co-precipitation of Cr. Concentration-dependent retention of Cr in a methanol:chloroform-treated cell-wall fraction was still saturable and in agreement with the predicted tendency of Cr(III) to precipitate as Cr(OH) 3 . To investigate a possible stimulation of Cr(III) uptake by phytosiderophores, Fe-deficient maize roots were exposed for 6 d to Cr(III)-EDTA or Cr(III)-DMA (2'-deoxymugineic acid). Relative to plants without Cr supply, the supply of both chelated Cr species in a subtoxic concentration of 1 lM resulted in alleviation of Fe deficiency-induced chlorosis and higher Cr accumulation. Long-term Cr accumulation from Cr(III)-DMA was similar to that from Cr(III)-EDTA, and Cr uptake from both chelates was not altered in the maize mutant ys1, which is defective in metal-phytosiderophore uptake. We therefore conclude that phytosiderophores increase Cr solubility similar to synthetic chelators like EDTA, but do not additionally contribute to Cr(III) uptake from Cr-contaminated sites.

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“…It has been reported that after uptake of Cr(IV), it is Fig. 1 The overview of chromium resources and uptake responses in plants immediately reduced to Cr(III) in the cells (Myttenaere and Mousny 1974). Cr(III) is located in the cytosol inside the cell (Yamamoto et al 1981).The persistence of Cr in soil can lead to increase in the uptake by the plants and the persistence is due to low mobility and recalcitrant nature of the metal.…”

Section: Chromium Uptake Transport and Distribution In Plantsmentioning

confidence: 97%

Physiological changes induced by chromium stress in plants: an overview

et al. 2011

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This article presents an overview of the mechanism of chromium (Cr) stress in plants. Toxic effects of Cr on plant growth and development depend primarily on its valence state. Cr(VI) is highly toxic and mobile whereas Cr(III) is less toxic. Cr-induced oxidative stress involves induction of lipid peroxidation in plants that cause severe damage to cell membranes which includes degradation of photosynthetic pigments causing deterioration in growth. The potential of plants with the adequacy to accumulate or to stabilize Cr compounds for bioremediation of Cr contamination has gained engrossment in recent years.

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The distribution of chromium-51 in lowland rice in relation to the chemical form and to the amount of stable chromium in the nutrient solution

Cited by 41 publications

References 11 publications

Chromium accumulation, translocation and chemical speciation in vegetable crops

Chromium accumulation, translocation and chemical speciation in vegetable crops

Uptake and apoplastic retention of EDTA‐ and phytosiderophore‐chelated chromium(III) in maize

Physiological changes induced by chromium stress in plants: an overview

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