Literature review: Phytoaccumulation of chromium, uranium, and plutonium in plant systems

Hossner, L. R.; Loeppert, Richard H.; Newton, Ronald J.; Szaniszlo, Paul J.

doi:10.2172/604402

Cited by 53 publications

(33 citation statements)

References 109 publications

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“…The hexavalent chromium Cr(VI) compounds are comparatively more toxic than Cr(III) due to their high solubility in water [12], rapid permeability through biological membranes and subsequent interaction with intracellular proteins and nucleic acids [7]. Chromium is toxic for agronomic plants at about 0.5 to 5.0 mg l -1 in nutrient solution and 5 to 100 mg kg -1 of available Cr in soil [11]. The species found to accumulate Cr are largely exotic; research into the mechanisms of Cr hyperaccumulation is scarce.…”

Section: Role Of Chromium In Plantsmentioning

confidence: 99%

Comparative Uptake and P Hytoextraction Study of Soil Induced Chromium by Accumulator and High Biomass Weed Species

Ghosh

Singh²

2005

Appl Ecol Env Res

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Ghosh -Singh.: Comparative uptake and phytoextraction study of soil induced chromium by accumulator weed species -67 - Abstract. Plant species have been recently used for heavy metal accumulation and most of the studies have been done on hyperaccumulator tolerant species. Metal hyperaccumulator plants though useful to phytoextract metal contaminant from soil, have many shortcomings such as low biomass, edible nature and difficult to harvest. This study is part of a series of studies that attempt to evaluate the phytoextraction potential of commonly found high biomass weed species that are harmless, non-edible in nature. We have investigated and compared five weed species (Ipomoea carnea, Dhatura innoxia, Phragmytes karka Cassia tora and Lantana camara), with two accumulator plants (Brassica juncea and Brassica campestris), in a pot study to assess Cr uptake in the range of 5 to 200 mg kg -1 soil. The results indicated that P. karka showed much greater tolerance to metals than other plants, though the uptake was low. It was more effective at translocating Cr from soil to plant shoot. The order of Cr extraction was I. carnea > D. innoxia > C. tora > P. karka > B. juncea > L. camara > B. campestris. Among the studied plants I.carnea showed maximum chromium extraction and biomass growth, but the difference of shoot by root chromium concentration was least. Other than Lantana camara, all the tested weeds were better for chromium extraction than the accumulator Brassica species. To save the Brassica species infested by army moth, pesticide application was required, whereas weeds required no care.

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Section: Role Of Chromium In Plantsmentioning

confidence: 99%

Comparative Uptake and P Hytoextraction Study of Soil Induced Chromium by Accumulator and High Biomass Weed Species

Ghosh

Singh²

2005

Appl Ecol Env Res

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“…[1] Chromium is toxic for agronomic plants at about 0.5 to 5.0 mg mL À1 in nutrient solution and 5 to 100 mg g À1 in soil. [47] 2402 DAVIES ET AL.…”

Section: Davies Et Almentioning

confidence: 99%

Mycorrhizal Fungi Increase Chromium Uptake by Sunflower Plants: Influence on Tissue Mineral Concentration, Growth, and Gas Exchange

Davies

Puryear

Newton

et al. 2002

Journal of Plant Nutrition

172

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As a potential phytoremediation system for phytoextraction of chromium (Cr), we evaluated the influence of the arbuscular mycorrhizal fungus Glomus intraradices on leaf tissue elemental composition, growth and gas exchange of sunflower (Helianthus annuus L.). Sunflower seedlings were either inoculated with mycorrhizal fungi (AM) or non-inoculated (Non-AM) and then exposed to two Cr species: {12 mmol of trivalent cation (Cr þ3 ) [Cr(III)] or 0.1 mmol of divalent dichromate anion (Cr 2 O 7 À ) [Cr(VI)]}. Both Cr species depressed plant growth, decreased stomatal conductance (g s ) and net photosynthesis (A).

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“…They also reported that the toxicity level of Zn in celery, Japanese honewort and carrot, and in Welsh onion, was above 10 and 30 mg/L, respectively. Chromium was toxic to agronomic plants at concentrations of 0.5-5.0 mg/L in the nutrient solution 5) . Some plants such as radish, wheat and broad bean could tolerate Ni at up to 8 mg/L in solution culture 4) .…”

Section: Discussionmentioning

confidence: 99%

Effects of Inorganic Elements on the In-vitro Growth of Pythium aphanidermatum (Edson) Fitzp.

et al. 2002

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Effects of inorganic elements on zoospore release, zoospore germination, mycelial growth and sporangium formation of Pythium aphanidermatum were investigated. The stage of zoospore release was highly influenced by many kinds of inorganic elements. The effective concentration as evaluated from 50% inhibition of zoospore release was 0.16, 0.19, 0.36, 0.4, 0.5, 2.5, 30, 168, 171 and 470 mg/L for Cu, Ag, Cr, Zn, iodine, Ni, Fe, Ca, Mg and K, respectively. Silver prominently inhibited both zoospore release and germination. Also, iodine showed inhibitory effects at every growth stage examined. The results indicated that several inorganic elements have the potential to suppress Pythium root rot disease in hydroponics, although further investigation is required to evaluate plants and conditions suitable for the method.

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Literature review: Phytoaccumulation of chromium, uranium, and plutonium in plant systems

Cited by 53 publications

References 109 publications

Comparative Uptake and P Hytoextraction Study of Soil Induced Chromium by Accumulator and High Biomass Weed Species

Comparative Uptake and P Hytoextraction Study of Soil Induced Chromium by Accumulator and High Biomass Weed Species

Mycorrhizal Fungi Increase Chromium Uptake by Sunflower Plants: Influence on Tissue Mineral Concentration, Growth, and Gas Exchange

Effects of Inorganic Elements on the In-vitro Growth of Pythium aphanidermatum (Edson) Fitzp.

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