The distribution of cadmium between the marine alga Chlorella stigmatophora and sea water medium

Rebhun, Stella; Ben‐Amotz, Ami

doi:10.1016/0043-1354(84)90066-6

Cited by 31 publications

(15 citation statements)

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“…This suggests that higher concentrations of 7.5 mg/L and above have inhibitory effects on the growth of C. tenuissimus. Rebhun and Ben-Amotz (1984) while working with marine microalga Chlorella stigmatophora observed similar trend and reported that Cd concentrations above 5 mg/L had inhibitory effects on growth. The inhibitory effects above 7.5 mg/L concentrations were further confirmed by the LSD values (P<0.01).…”

Section: ] Discussionsupporting

confidence: 54%

Genotoxicity of cadmium in marine diatom Chaetoceros tenuissimus using the alkaline Comet assay

et al. 2006

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Genotoxic effects of Cadmium on phytoplankton Chaetoceros tenuissimus have been evaluated using DNA damage by comet assay. Cadmium concentrations ranging from 2.4 to 10 mg/L were used to evaluate the effects. Results showed that as the concentration of Cd increased growth of the diatom decreased. Alkaline single-cell gel electrophoresis (Comet assay) method, which is highly sensitive in detection of DNA damage in eukaryotic cells, was used to observe genomic changes in marine diatom cells. DNA damage was measured as percent number of comets and normal cells. 65% cells were found to be damaged at 10 mg/L concentration of Cd as compared to 23% in 2.4 mg/L and only 5% in controls. More than 50% apoptic cells were observed on 8 th day at 10mg/L and 12 th day at 7.5 mg/L concentrations. At lower Cd concentrations (4.5 mg/L and below) the damage was below 30% till the last day. This suggested that higher Cd levels have early damaging effects on cell nuclear material and that % injury increases with advancement of exposure period. One advantage of use of C. tenuissimus is the ease with which it can be cultured in a defined medium. Chaetoceros tenuissimus diatom can be used as an in vivo model for ecogenotoxicity assessment using the Comet assay.

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Section: ] Discussionsupporting

confidence: 54%

Genotoxicity of cadmium in marine diatom Chaetoceros tenuissimus using the alkaline Comet assay

et al. 2006

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“…Cadmium was found to exert toxic action on various algae such as ChloreUa (Rosko & Rachlin 1975, Gipps & Coller 1980, Rebhun & Ben-Amotz 1984, Euglena (De Filippis e t al. 1981), diatoms (Rachlin et al 1982(Rachlin et al , 1983, DunalieUa (Jennings & Rainbow 1979), and Monochrysis, Isochrysis, and Phaeodactylum (Wikfors & Ukeles 1982).…”

Section: Introductionmentioning

confidence: 99%

“…Cadmium uptake has been shown in Dunahella (Jennings & Rainbow 1979) and in Chlorella (Rebhun & Ben-Amotz 1984). Rachlin et al (1984), using X-ray energy dispersive analysis, identified intracellular cadmium-polyphosphate bodies and cytoplasmic cadmium in Anabaena.…”

Section: Introductionmentioning

confidence: 99%

Effect of NaCI concentration on cadmium uptake by the halophilic alga Dunaliella salina

Rebhun¹,

Ben‐Amotz²

1986

Mar. Ecol. Prog. Ser.

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The effect of NaCl concentration on cadmium uptake by DunaLiella salina was investigated. Algae were grown in the presence of 5 mg I-' cadmium at NaCl concentrations varying from 0.5 M to 4 M. The response of cell-specific growth rate, pigment content, and cadmium uptake was studied. Results show maximum cadmium uptake at NaCl concentrations between 0.5 and 1.0 M and considerably lower cadmiuni uptake at NaCl concentrations above 1.0 M. It is suggested that of the Cd species existing under the experimental conditions, the positively charged Cd", CdC1' and possibly the uncharged CdC12(aq) play a major role in cadmium uptake processes.

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“…Mine production includes Cd, Cu, Pb and Hg in considerable amounts (Kennish, 1996). These pollutants, which are derived from growing number of diverse anthropogenic sources, industrial effluents, urban run-off, sewage treatment plants, agricultural run off and domestic garbage dumps etc., have progressively affected more and more ecosystems (Wickfors and Ukeles, 1982;Rebhun and Amotz, 1984;Cotte-Krief et al, 2000;Bu-Olayan et. al., 2001;Macfarlane and Burchett, 2001;and Esser and Volpe, 2002).…”

Section: Introductionmentioning

confidence: 99%

Cadmium induced histopathological changes in the stomach and small intestine of Swiss albino mice Mus musculus

Mohapatra

Kumari

Datta

2009

JANS

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Abstract:The results on the effect of oral administration of cadmium chloride on the histomorphology of the stomach and small intestine of Swiss albino mice revealed severe histopathological effects in the tissues of both stomach and small intestine. There is marked atrophy of musculature, and disintegration of sub-mucosal and mucosal tissues, distortion of villi with disintegration of mucosal epithelial cells characterized by cytoplasmic vacuolization, nuclear pycnosis and nuclear fragmentation. A significant damage in the Brunner's gland and crypts of Liberkuhn has been observed.

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The distribution of cadmium between the marine alga Chlorella stigmatophora and sea water medium

Cited by 31 publications

References 15 publications

Genotoxicity of cadmium in marine diatom Chaetoceros tenuissimus using the alkaline Comet assay

Genotoxicity of cadmium in marine diatom Chaetoceros tenuissimus using the alkaline Comet assay

Effect of NaCI concentration on cadmium uptake by the halophilic alga Dunaliella salina

Cadmium induced histopathological changes in the stomach and small intestine of Swiss albino mice Mus musculus

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