Sublethal toxicity and biotransformation of pyrene in Lumbriculus variegatus (Oligochaeta)

Mäenpää, Kimmo; Leppänen, Matti T.; Kukkonen, Jussi V. K.

doi:10.1016/j.scitotenv.2009.01.019

Cited by 32 publications

(31 citation statements)

References 31 publications

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“…The results revealed that sublethal effects to the worms occurred due to the high worm densities, which was consistent with previous studies (Lotufo et al, 2000;Millward et al, 2001;Mäenpää et al, 2009). Similar to the present study, sublethal toxicity was believed to be the reason for the decrease in bioaccumulation of pyrene in the oligochaetes Limnodrilus hoffmeisteri and L. variegatus (Millward et al, 2001;Mäenpää et al, 2009). Lotufo et al (2000) reported worms at high density were more susceptible to toxicant effects on their growth, and they suggested competition for food sources may be one of the reasons.…”

Section: Influence Of Bioturbation On Pah Toxicitysupporting

confidence: 92%

“…Although reproduction was noted in some cases, survival of the worms was all close to 100 percent, thus reproduction was not the reason for the decline in worm weights in the present study. These results, which are consistent with the literature (Lotufo et al, 2000;Millward et al, 2001;Mäenpää et al, 2009), indicated that overcrowding may change organism susceptibility to contaminants, which in turn may alter sediment toxicity. Thus, future studies should take this into consideration when analyzing the effects of bioturbation on bioavailability of contaminants in sediments.…”

Section: Influence Of Bioturbation On Pah Toxicitysupporting

confidence: 92%

“…Thus, rapid biotransformation and limited uptake may contribute to the low BSAFs in the present study. Although L. variegatus is regarded as an organism with limited biotransformation capacity (USEPA, 2000), it has been reported to be capable of biotransforming certain PAHs (Leppänen and Kukkonen, 2000;Lyytikäinen et al, 2007;Mäenpää et al, 2009;You et al, 2006) and other HOCs (Mäenpää et al, 2008;You et al, 2009). The biotransformation of PAHs has been shown as compound-dependent.…”

Section: Sediment Analysismentioning

confidence: 99%

See 2 more Smart Citations

Influence of bioturbation on bioavailability and toxicity of PAHs in sediment from an electronic waste recycling site in South China

Pang

Sun

et al. 2012

Ecotoxicology and Environmental Safety

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Section: Influence Of Bioturbation On Pah Toxicitysupporting

confidence: 92%

Section: Influence Of Bioturbation On Pah Toxicitysupporting

confidence: 92%

Section: Sediment Analysismentioning

confidence: 99%

See 1 more Smart Citation

Influence of bioturbation on bioavailability and toxicity of PAHs in sediment from an electronic waste recycling site in South China

Pang

Sun

et al. 2012

Ecotoxicology and Environmental Safety

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“…In addition to bioaccumulation testing, sublethal toxicity was examined after the 672 h (28 days) of bioassay by recording worm mass, reproductive success, and dorsal blood vessel values (Mäenpää et al 2009). Dorsal blood vessel rate was assessed in triplicate with five organisms analyzed in each replicate.…”

Section: Bioassaysmentioning

confidence: 99%

“…No avoidance of sediment was observed for any of the worms during testing. In addition, sublethal toxicity to L. variegatus including mass, reproduction, and dorsal blood vessel rates were assessed at the end of the 28-day exposure (Mäenpää et al 2009). No significant differences were noted between controls and treatments for any of the sublethal endpoints (data not shown).…”

Section: Bioassaysmentioning

confidence: 99%

Bioavailability of Hydrophobic Organic Contaminants in Sediment with Different Particle-Size Distributions

Mehler

Pang

et al. 2010

Arch Environ Contam Toxicol

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Few studies have been conducted examining the distribution of different-sized particles in sediment and its potential impact on bioavailability of sediment-associated contaminants. In the current study, three sediments composed of different particle sizes, i.e., fine (0-180 lm), combined (0-500 lm), and coarse (180-500 lm), were used to evaluate the bioaccumulation potential and toxicokinetic rates of four hydrophobic organic contaminants (HOCs) including two polychlorinated biphenyls (PCB-101 and PCB-118), a metabolite of an organochlorine insecticide (p,p 0 -DDE), and a polybrominated diphenyl ether (BDE-47) to the benthic oligochaete Lumbriculus variegatus. Two chemical approaches, Tenax extraction and matrix-solid phase microextraction (SPME), were also used to measure bioavailability of the sediment-associated HOCs. The uptake and elimination rates of HOCs by L. variegatus from coarse sediment were greater than those from fine sediment, although the biota-sediment accumulation factors (BSAFs) were not significantly different among sediments with different particle sizes. The freely dissolved HOC concentrations measured by matrix-SPME were greater in coarse sediment, however, no difference was found in uptake and desorption rates for the matrix-SPME and Tenax extraction measurements. Although BSAFs in L. variegatus were the same among sediments, kinetic rates of HOCs for organisms and freely dissolved HOC concentrations were lower in fine sediment, suggesting that sediment ingestion may also play a role in organism uptake, especially for HOCs in fine sediment.

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Bioaccumulation and biotransformation of pyrene and 1‐hydroxypyrene by the marine whelk Buccinum undatum

Beach

Quilliam

Rouleau

et al. 2010

Enviro Toxic and Chemistry

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The fates of a phenolic contaminant and its hydrocarbon precursor have rarely been compared, especially in an invertebrate species. Two groups of Buccinum undatum were exposed to equimolar amounts of pyrene and 1‐hydroxypyrene over 15 d through their diets. Tissue extracts from the muscle and visceral mass were analyzed by liquid chromatography with fluorescence and mass spectrometry detection. Nine biotransformation products were detected in animals from both exposures. These included 1‐hydroxypyrene, pyrene‐1‐sulfate, pyrene‐1‐glucuronide, pyrene glucose sulfate, two isomers each of pyrenediol sulfate and pyrenediol disulfate, and one isomer of pyrenediol glucuronide sulfate. These compounds represent a more complex metabolic pathway for pyrene than is typically reported. Diconjugated metabolites were as important in animals exposed to pyrene as in those exposed to 1‐hydroxypyrene. Biotransformation products represented >90% of the material detected in the animals and highlight the importance of analyzing metabolites when assessing exposure. A mean of only 2 to 3% of the body burden was present in muscle compared with the visceral mass of both groups. The analytical methods were sufficiently sensitive to detect biotransformation products both in laboratory control whelks and in those sampled offshore. The tissue distribution of [14C]pyrene was also studied by autoradiography. Radioactivity was present primarily in the digestive and excretory system of the whelks and not in the gonads or muscle tissue. Environ. Toxicol. Chem. 2010;29:779–788. © 2009 SETAC

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Sublethal toxicity and biotransformation of pyrene in Lumbriculus variegatus (Oligochaeta)

Cited by 32 publications

References 31 publications

Influence of bioturbation on bioavailability and toxicity of PAHs in sediment from an electronic waste recycling site in South China

Influence of bioturbation on bioavailability and toxicity of PAHs in sediment from an electronic waste recycling site in South China

Bioavailability of Hydrophobic Organic Contaminants in Sediment with Different Particle-Size Distributions

Bioaccumulation and biotransformation of pyrene and 1‐hydroxypyrene by the marine whelk Buccinum undatum

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