Alterations in Prey Capture and Induction of Metallothioneins in Grass Shrimp Fed Cadmium-Contaminated Prey

Wallace, William G.; Brouwer, Thea M. Hoexum; Brouwer, Marius

doi:10.1897/1551-5028(2000)019<0962:aipcai>2.3.co;2

Cited by 7 publications

(19 citation statements)

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“…1C). The process of reversal of resistance, therefore, has had a potential large-scale ecological effect because resistant genotypes transfer Cd more efficiently through the food web (17) and affect both the Cd concentrations and prey-location ability of predators (27).…”

Section: Discussionmentioning

confidence: 99%

Rapid loss of genetically based resistance to metals after the cleanup of a Superfund site

Levinton

Suatoni

Wallace

et al. 2003

Proc. Natl. Acad. Sci. U.S.A.

100

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Over the period 1953–1979, a battery factory on the Hudson River in New York released ≈53 tons of cadmium (Cd) and nickel hydride wastes into Foundry Cove. The most common aquatic benthic species, the oligochaete Limnodrilus hoffmeisteri , rapidly evolved resistance to Cd. The capacity for detoxification and internal storage of Cd resulted in a strong potential for trophic transfer of Cd through the aquatic food web. As a result of United States Superfund legislation, a major remediation effort in 1994–1995 removed the majority of the Cd, thereby removing the selective force for resistance. The cleanup of this cove resulted in the maintenance of resistant forms but then there ensued a rapid loss of resistance in ≈9–18 generations, showing the potential for ecological restoration to rapidly reduce the potential for trophic transfer of Cd through the ecosystem. This study demonstrates a genetic approach to the study of ecological restoration and connects a genetic indicator of restoration to transfer of toxic metals through ecosystems.

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Section: Discussionmentioning

confidence: 99%

Rapid loss of genetically based resistance to metals after the cleanup of a Superfund site

Levinton

Suatoni

Wallace

et al. 2003

Proc. Natl. Acad. Sci. U.S.A.

100

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“…During Cd uptake, the BDM-Cd fraction may serve as the primary mechanism of detoxification. However, the system may become overwhelmed and Cd may bind to more sensitive cellular components (MSF), resulting in toxicity during a period of higher Cd exposure (Wallace et al, 2000). Wang and Wang (2008) suggested that the MSF-Cd best predicted Cd toxicity in marine diatoms under different environmental conditions.…”

Section: Subcellular Distributionmentioning

confidence: 99%

Subcellular cadmium distribution and antioxidant enzymatic activities in the leaves of two castor ( Ricinus communis L.) cultivars exhibit differences in Cd accumulation

Zhang

Guo

Yang

et al. 2015

Ecotoxicology and Environmental Safety

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a b s t r a c tThe aims of this study were: (1) the study of cadmium (Cd) accumulation and toxicity in different castor cultivars (Ricinus communis L.); (2) to investigate changes in antioxidant enzymatic activities and the subcellular distribution of Cd in young and old leaves from two different castor cultivars, after exposure to two different Cd concentrations, and explore the underlying mechanism of Cd detoxification focusing on antioxidant enzymes and subcellular compartmentalization. The Cd concentration, toxicity, and subcellular distribution, as well as superoxide dismutase (SOD), catalase (CAT), and peroxidase (POD) activities were measured in Zibo-3 and Zibo-9 cultivars after exposure to two different concentrations of Cd (2 mg/L and 5 mg/L) for 10 days. This research revealed Cd accumulation characteristics in castor are root4 stem4 young leaf 4old leaf. Castor tolerance was Cd dose exposure and the cultivars themselves dependent. Investigation of subcellular Cd partitioning showed that Cd accumulated mainly in the heat stable protein (HSP) and cellular debris fractions, followed by the Cd rich granule (MRG), heat denatured protein (HDP), and organelle fractions. With increasing Cd concentration in nutrient solution, the decreased detoxified fractions (BDM) and the increased Cd-sensitive fractions (MSF) in young leaves may indicate the increased Cd toxicity in castor cultivars. The BDM-Cd fractions or MSF-Cd in old leaves may be linked with Cd tolerance of different cultivars of castor. The antioxidant enzymes that govern Cd detoxification were not found to be active in leaves. Taken together, these results indicate Cd tolerance and toxicity in castor can be explained by subcellular partitioning.Crown

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“…Nevertheless, in many intensely polluted areas, no annelids persist because the concentration of toxicants is too high to detoxify (Steichen et al 1996). In contrast, there are relatively fewer species of arthropods and echinoderms with opportunistic life histories, and these phyla are more sensitive to toxic chemicals because they generally lack detoxification mechanisms (James 1989, Bryan & Langston 1992, but see Nassir et al 2000, Wallace et al 2000. In sediments with high organic loading, very few macroorganisms persist in any phylum because of high microbial oxygen demand leading to hypoxia/anoxia and the production of toxic hydrogen sulfide (Fenchel & Riedl 1970, Pearson & Rosenberg 1978, Diaz & Rosenberg 1995.…”

Section: Life History Traits Of Marine Benthic Invertebratesmentioning

confidence: 99%

Variation in marine benthic community composition allows discrimination of multiple stressors

Lenihan¹,

Peterson²,

Kim³

et al. 2003

Mar. Ecol. Prog. Ser.

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Predicting how communities respond to multiple, potentially interacting chemical stressors is inherently difficult because community structure and dynamics, the chemical properties of contaminants, and biological-chemical interactions vary with environmental conditions. Using a field experiment conducted in Antarctica, we tested whether 3 phyla of benthic soft-sediment marine invertebrates -annelids, arthropods, and echinoderms -respond differently to 2 common forms of contamination, organic enrichment and toxic contamination. Based on life history strategies and physiological tolerances to contaminants, we hypothesized that the principal responses of the 3 phyla would be: (1) enhanced abundance of annelids in organically enrichment sediments and (2) decreased abundance of arthropods and echinoderms in toxic metal contamination. Sediment treatments were established in the field experiment with an orthogonal combination of 3 levels of total organic carbon (TOC; 0, 1, and 2% by weight) and copper (Cu; 0, 100, and 500 µg Cu g -1 sediment), and colonization patterns were observed after 1 yr. Densities of annelids (mainly polychaetes) increased with TOC across all levels of Cu. Arthropods and echinoderms decreased with Cu, but responded variably to TOC, based largely on differences in habitat preferences exhibited by epifaunal and infaunal species. Small subsurface arthropod species (amphipods, isopods, cumaceans, and ostracods) decreased in high organic loading, due to induction of and exposure to hypoxia and hydrogen sulfide, but large surface deposit-feeding echinoderms (asteroids and echinoids) responded positively to increased carbon food supply. We present a predictive model based on assessment of benthic community structure conducted at the taxonomic level of phyla that could be used to link cause and effect for multiple chemical stressors in marine ecosystems.

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Alterations in Prey Capture and Induction of Metallothioneins in Grass Shrimp Fed Cadmium-Contaminated Prey

Cited by 7 publications

References 0 publications

Rapid loss of genetically based resistance to metals after the cleanup of a Superfund site

Rapid loss of genetically based resistance to metals after the cleanup of a Superfund site

Subcellular cadmium distribution and antioxidant enzymatic activities in the leaves of two castor ( Ricinus communis L.) cultivars exhibit differences in Cd accumulation

Variation in marine benthic community composition allows discrimination of multiple stressors

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