Accumulation and Physiological and Biochemical Effects of Cadmium in a Simple Aquatic Food Chain

Devi, M. Ranjani; Thomas, Dana A.; Barber, John T.; Fingerman, Milton

doi:10.1006/eesa.1996.0004

Cited by 76 publications

(36 citation statements)

References 3 publications

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“…Cd occurs naturally in aquatic environments in concentrations below 0.01 µg.L -1 , yet in polluted waters it can be found in much higher concentrations (Devi et al, 1996). Cd may be introduced into the environment as a result of the industrial processing of leather and some metals, including zinc and lead.…”

Section: Introductionmentioning

confidence: 99%

“…It is also present in phosphate fertilizers and used in paint and lubricant production (Jiang and Wang, 2007). In aquatic ecosystems, Cd can affect the biota indirectly by trophic transfer; fish accumulate metal in their tissues and they may transfer to the upper levels of the chain, like humans (Joyeux et al, 2004); or directly by absorption (Devi et al, 1996).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The use of Salvinia auriculata as a bioindicator in aquatic ecosystems: biomass and structure dependent on the cadmium concentration

et al. 2012

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This study shows, in a multiple-level approach, the responses of Salvinia auriculata to Cd pollution in aquatic ecosystems. S. auriculata ramets were cultivated in nutrient solution and subjected to five treatments with Cd for ten days. At the end of the experiment, the number of new ramets and the dry biomass were determined. For ultrastructural observations, the leaves of S. auriculata were analyzed using a scanning electron microscope and transmission electron microscope. At the end of the experiment, the plants exposed to Cd showed damage in the leaves including necrosis and chlorosis, stomate deformations and damaged trichomes. We observed a decrease in the number of new ramets and dry biomass of S. auriculata following the increase in Cd concentration in the solution. At the ultrastructural level, leaves exposed to Cd presented chloroplast deformations and deterioration in the cell wall. All the symptoms of toxicity were directly proportionate to the concentration of Cd in the solution. The results suggests that S. auriculata shows good potential for use as a bioindicator and it can be used in the biomonitoring of aquatic ecosystems contaminated by Cd.Keywords: aquatic plant, heavy metal, ecological indicator, biomonitoring.O uso de Salvinia auriculata como bioindicador em ecossistemas aquáticos: biomassa e estrutura dependentes da concentração de cádmio ResumoEste estudo apresenta, em diferentes níveis de abordagem, a resposta de Salvinia auriculata à poluição de ecossistemas aquáticos por cádmio (Cd). Rametes de S. auriculata foram cultivados em solução nutritiva e expostos a cinco tratamentos com Cd durante dez dias. Ao final do experimento, o número de novos rametes e a biomassa seca foram determinados. Para observações ultraestruturais, as folhas de S. auriculata foram analisadas utilizando-se um microscópio eletrônico de varredura e a microscopia eletrônica de transmissão. Ao final do experimento, as plantas expostas ao Cd apresentaram danos nas folhas, como necrose e clorose, além de estômatos deformados e tricomas danificados. Foi observado um menor número de rametes e diminuição da biomassa seca de S. auriculata com o aumento da concentração de Cd na solução. Em nível ultraestrutural, as folhas expostas ao Cd apresentaram má formação dos cloroplastos e deterioração da parede celular. Todos os sintomas de toxidade foram diretamente proporcionais à concentração de Cd na solução. Os resultados sugerem que S. auriculata apresenta um bom potencial para uso como bioindicador e pode ser usada em programas de biomonitoramento de ecossistemas aquáticos contaminados por Cd.Palavras-chave: planta aquática, metal pesado, indicador ecológico, biomonitoramento.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The use of Salvinia auriculata as a bioindicator in aquatic ecosystems: biomass and structure dependent on the cadmium concentration

et al. 2012

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“…These negative alterations can be related to each other. The decrease in the M rat signifies uncoupling between respiration and oxidative phosphorylation that is typical for acute action of Cd and DDT (Devi et al 1996;Klaassen 1996;Chance et al 1998). Increased paracellular permeability and decreased intralysosomal NR (neutral red) accumulation are typical cellular alterations produced by the uncoupling and ATP depletion (Trump and Ginn 1969;Cotran et al 1989).…”

Section: Discussionmentioning

confidence: 99%

“…Cd is one of the most toxic metals that accumulates in marine food chains (Romeo et al 1995;Devi et al 1996) and causes uncoupling of respiration and oxidative phosphorylation in mitochondria, alteration of cellular signalling and gene regulation, DNA damage, alterations of nuclear integrity and apoptosis (McQueen 1989;Paasivirta 1991;Peterle 1991Huggett et al 1992Malins and Ostrander 1993;Devi et al 1996;Klaassen 1996;Beyersmann and Hechtenberg 1997;Pruski and Dixon 2002). DDT is known to act as an uncoupler of respiration and oxidative phosphorylation within mitochondria; likewise, it is known as an inhibitor of several enzymes including Na, K-ATPase, endocrine disruptor, mutagen and clastogen (McQueen 1989;Paasivirta 1991;Peterle 1991;Worthing and Hance 1991;Huggett et al 1992;Malins and Ostrander 1993;Maruham 1994;Klaassen 1996).…”

Section: In Vitro Exposure Experimentsmentioning

confidence: 99%

Marine molluscs in environmental monitoring

Bresler

Mokady

Fishelson

et al. 2003

Helgoland Marine Research

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In an effort to establish biomonitoring programmes for routine and emergency monitoring of littoral marine habitats, organismal responses are examined in two ways: firstly, in controlled, laboratory studies, where the response may be accurately characterized; secondly, in field-collected specimens, with the hope of obtaining evidence regarding disturbances such as the ones caused by anthropogenic pollution. In many cases, there is a gap between the two types of studies, and different species and experimental and/or analytical procedures are used. In a series of recent studies, we have examined responses of field-collected molluscs, and interpreted our findings with respect to pollution. Here, we report a complementary study, in which molluscs collected from reference and polluted sites were exposed to cadmium or DDT under controlled laboratory conditions. Using fluorescent probes and microfluorometry, we examined the effect of these pollutants on paracellular permeability, lysosomal stability and metabolic status of mitochondria. Our findings indicate that molluscs from polluted sites are less affected, showing significantly smaller alterations in all examined parameters. These findings are in line with previous results showing higher levels of activity of cellular defence mechanisms in molluscs collected from polluted sites. Taken together, the results may be used to establish a reliable biomonitoring system. The sensitivity of the suggested methodology is also expected to qualify such a system for early warning.

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“…a -60% inhibition; b -30% inhibition; c -30% inhibition. Ions can alter cholinesterase activity inhibiting or activating so that some authors even propose the enzymes as biomarkers of heavy metals and other pollutants (Abou-Donia and Menzel, 1967;Mukherjee and Bhattacharya, 1974;Olson and Christensen, 1980;Tomlinson et al, 1981;Hughes and Bennett, 1985;Gill et al, 1990;1991;Payne et al, 1996;Devi et al, 1996;Najimi, 1997;Reddy et al, 2003). This fact is not always taken into account during the use of cholinesterases as biomarkers of pesticides and can lead to false positives or negatives and misinterpretation of results.…”

Section: Organophosphorus and Carbamates Action On Fish Cholinesterasesmentioning

confidence: 99%

Fish Cholinesterases as Biomarkers of Organophosphorus and Carbamate Pesticides

Assis¹,

Bezerra²

2011

Pesticides in the Modern World - Pests Control and Pesticides Exposure and Toxicity Assessment

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Accumulation and Physiological and Biochemical Effects of Cadmium in a Simple Aquatic Food Chain

Cited by 76 publications

References 3 publications

The use of Salvinia auriculata as a bioindicator in aquatic ecosystems: biomass and structure dependent on the cadmium concentration

The use of Salvinia auriculata as a bioindicator in aquatic ecosystems: biomass and structure dependent on the cadmium concentration

Marine molluscs in environmental monitoring

Fish Cholinesterases as Biomarkers of Organophosphorus and Carbamate Pesticides

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