Toxic action of hexavalent chromium onEuglena gracilis cells strain Z grown under heterotrophic conditions

Brochiero, Emmanuelle; Bonaly, J.; Mestre, Jean-Charles

doi:10.1007/bf01056339

Cited by 21 publications

(7 citation statements)

References 19 publications

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“…A lengthening in the lag growth phase induced by Cr(VI) and a decreased growth rate caused by Cr(III) has been observed in Euglena gracilis [63]. Inhibition of growth in Euglena correlates with the arrest of cells in the G‐2 phase of the cell cycle and inhibition of respiration and photosynthesis [64].…”

Section: Chromium Toxicitymentioning

confidence: 99%

Interactions of chromium with microorganisms and plants

et al. 2001

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Chromium is a highly toxic non-essential metal for microorganisms and plants. Due to its widespread industrial use, chromium (Cr) has become a serious pollutant in diverse environmental settings. The hexavalent form of the metal, Cr(VI), is considered a more toxic species than the relatively innocuous and less mobile Cr(III) form. The presence of Cr in the environment has selected microbial and plant variants able to tolerate high levels of Cr compounds. The diverse Cr-resistance mechanisms displayed by microorganisms, and probably by plants, include biosorption, diminished accumulation, precipitation, reduction of Cr(VI) to Cr(III), and chromate efflux. Some of these systems have been proposed as potential biotechnological tools for the bioremediation of Cr pollution. In this review we summarize the interactions of bacteria, algae, fungi and plants with Cr and its compounds.

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Section: Chromium Toxicitymentioning

confidence: 99%

Interactions of chromium with microorganisms and plants

et al. 2001

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“…-that was isolated from waters highly contamined by chromium salts -Scenedesmus, Pandorina, Cladophora, Cyanidium caldarium, and cyanobacterium Phormidium laminosum) to bioaccumulate Cr (VI) salts (Kilic and Donmez, 2007;Sampedro et al, 1995;Vymazal, 1990). Many algae and aquatic microorganisms (genera Spirogyra, Mougeotia, Chlorella, Scenedesmus, Selenastrum, Euglena) demonstrate growth inhibition based on inhibition of respiration and photosynthesis, as well as cytoskeleton alterations in the dependence on Cr concentration and other effects evoked by Cr (III) and Cr (VI) salts (Brady et al, 1994;Brochiero et al, 1984;Fasulo et al, 1983;Liu et al, 1995;Travieso et al, 1999). The problem of Cr-bioaccumulation can be very important in the case of industrialexploited algae species, namely Gelidium genus species because of their ability to bioccumulate chromium, especially as Cr (III) salts (Vilar et al, 2007).…”

Section: Chromiummentioning

confidence: 99%

Uncommon Heavy Metals, Metalloids and Their Plant Toxicity: A Review

Babula

Adam

Opatřilová

et al. 2009

Sustainable Agriculture Reviews

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Heavy metals represent a group of dangerous pollutants, to which is paid close attention. Many heavy metals are essential as important constituents of pigments and enzymes-mainly zinc, nickel, and copper. However, all metals, especially cadmium, lead, mercury, and copper, are toxic in high concentrations because they disrupt enzyme functions, replacing essential metals in pigments or producing reactive oxygen species. The toxicity of less common heavy metals and metalloids, such as thallium, arsenic, chromium, antimony, selenium, and bismuth has been investigated. Here we review the phytotoxicity of thallium, chromium, antimony, selenium, bismuth; and other rare heavy metals and metalloids such as

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“…that was isolated from waters highly contaminated by chromium salts, Scenedesmus, Pandorina, Cladophora, Cyanidium caldarium, cyanobacterium Phormidium laminosum), which affects the capability of the microorganisms to bioaccumulate Cr(VI) salts (Kilic and Donmez 2007;Sampedro et al 1995;Vymazal 1990). Many algae and aquatic microorganisms (genera Spirogyra, Mougeotia, Chlorella, Scenedesmus, Selenastrum, Euglena) demonstrate growth inhibition based on inhibition of respiration and photosynthesis, as well as cytoskeleton alterations in the dependence on Cr concentration and other effects evoked by Cr(III) and Cr(VI) salts (Brady et al 1994;Brochiero et al 1984;Fasulo et al 1983;Liu et al 1995;Travieso et al 1999). Problem of Cr-bioaccumulation can be very important in the case of industrially exploited algae species, namely of Gelidium genus species because of their ability to biaoaccululate chromium, especially as Cr(III) salts (Vilar et al 2007).…”

Section: Contamination Of Soil and Watermentioning

confidence: 98%

Uncommon heavy metals, metalloids and their plant toxicity: a review

et al. 2008

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Heavy metals still represent a group of dangerous pollutants, to which close attention is paid. Many heavy metals are essential as important constituents of pigments and enzymes, mainly zinc, nickel and copper. However, all metals, especially cadmium, lead, mercury and copper, are toxic at high concentration because of disrupting enzyme functions, replacing essential metals in pigments or producing reactive oxygen species. The toxicity of less common heavy metals and metalloids, such as thallium, arsenic, chromium, antimony, selenium and bismuth, has been investigated. Here, we review the phytotoxicity of thallium, chromium, antimony, selenium, bismuth, and other rare heavy metals and metalloids such as tellurium, germanium, gallium, scandium, gold, platinum group metals (palladium, platinum and rhodium), technetium, tungsten, uranium, thorium, and rare earth elements yttrium and lanthanum, and the 14 lanthanides cerium, dysprosium, erbium, europium, gadolinium, holmium, lutetium, neodymium, promethium, praseodymium, samarium, terbium, thulium and ytterbium.

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Toxic action of hexavalent chromium onEuglena gracilis cells strain Z grown under heterotrophic conditions

Cited by 21 publications

References 19 publications

Interactions of chromium with microorganisms and plants

Interactions of chromium with microorganisms and plants

Uncommon Heavy Metals, Metalloids and Their Plant Toxicity: A Review

Uncommon heavy metals, metalloids and their plant toxicity: a review

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