Bioaccumulation of cadmium, lead, copper, and zinc in successive developmental stages of Lymantria dispar L. (Lymantriidae, Lepid)?a life cycle study

Gintenreiter, S.; Ortel, Johanna; Nopp, H.

doi:10.1007/bf00230711

Cited by 36 publications

(42 citation statements)

References 19 publications

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“…In contrast to our results, concentrations of Zn in adults of various insect species were found to differ markedly from those of the corresponding larvae (Lindqvist 1992;Gintenreiter et al 1993). However, in those cases the larvae and adults have different diets, whereas immature and adult T. molitor share the same diet.…”

Section: Resultscontrasting

confidence: 56%

“…In this study, c o n c e n t r a t i o n s o f 6 5 Zn were less affected by metamorphosis compared with those of 109 Cd and 203 Hg. It is obvious that metamorphosis-associated losses of metals which have penetrated the gut epithelium and entered into the body cavity are lower than losses of metals that mostly remain in the midgut epitheliums which is reformed.In contrast to our results, concentrations of Zn in adults of various insect species were found to differ markedly from those of the corresponding larvae (Lindqvist 1992;Gintenreiter et al 1993). However, in those cases the larvae and adults have different diets, whereas immature and adult T. molitor share the same diet.…”

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confidence: 56%

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Losses of Cd, Hg, and Zn During Metamorphosis in the Beetle Tenebrio Molitor (Coleoptera: Tenebrionidae)

Lindqvist

Block

1997

Bulletin of Environmental Contamination and Toxicology

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Insects occur in great numbers and are important for the transport of metals between trophic levels in food webs. Therefore, processes influencing metal concentrations in insects are important for the distribution of metals in ecosystems. The metamorphosis in holometabolous insects is of importance for metal concentrations. During this process some organs undergo an extensive breakdown as new organs are built up (Wigglesworth 1974). In the course of this process, concentrations of Cd were found to be altered .The impact of the metamorphosis on concentrations of other metals has been less studied. Nuorteva and Nuorteva (1982) found that Hg concentrations were lower in adult blowflies than in larvae, which suggests that Hg concentrations are altered during metamorphosis. Zn is an essential metal and is subject to homeostatic regulation (Chapman 1982). If no changes in metabolic pathways are needed, the optimal concentration of Zn may remain unchanged.The aim of this study was to measure the loss of Cd during metamorphosis in an insect and to determine whether Hg and Zn undergo a similar type of decrease. Hg was studied in both inorganic and methylated forms in order to reveal how the chemical form of this metal influences its metabolism. Tenebrio molitor was used in this study because adults and larvae share the same diet. Since this study lasts from the larval stage to the adult stage, the type of food is not changed. A shift in diet could influence the metabolism of the metals. MATERIALS AND METHODSThe metals were accumulated during the larval period in Tenebrio molitor. Preultimate instar larvae of T. molitor were kept in darkness at 20°C and 65% R.H.For each treatment, 10 larvae were reared individually in glass boxes and given wheat bran as food. The larvae were also given a piece of potato containing 109 Cd, 203 Hg, Methyl-203 Hg or 65 Zn. The potato pieces, approximately 2*5*10 mm, had been incubated 30 min in a 0.9% NaCl solution containing one of the metals. After the incubation, the potato pieces were dried on a paper towel for 1 hr and thereafter given to the larvae. The potato pieces were replaced by untreated potato after one week.Correspondence to: L. LindqvistThe following chemicals were used: 109 C d C l 2 , specific activity 1.76 mCi/mg, 65 ZnC1 2 , 1.62 mCi/mg, 203 Hg(NO 3 ) 2 , 1.37 mCi/mg; all of which were purchased from Du Pont Scandinavia, Stockholm, Sweden. Methyl-203 Hg was synthesized according to Naganuma et al. (1985).Metal contents were measured in the larvae in vivo during the last larval stage using a gamma-counter (Searle model 1185). Thereafter contents of the metals were monitored every third day throughout metamorphosis and for 27 days following eclosion of adults. RESULTS AND DISCUSSIONContents of all the studied metals declined at pupation when the exuvium was cast off and the pupal stage began. The 109 Cd content of newly eclosed adults was 76% of that of the last instar larvae. For 65 Zn it was 87%, for 203 Hg 65% and for methyl-203 Hg 83% (Fig. 1).In various insect larvae Cd ...

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Section: Resultscontrasting

confidence: 56%

contrasting

confidence: 56%

Losses of Cd, Hg, and Zn During Metamorphosis in the Beetle Tenebrio Molitor (Coleoptera: Tenebrionidae)

Lindqvist

Block

1997

Bulletin of Environmental Contamination and Toxicology

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“…This may be related to metal excretion, for example, through the meconium (Gintenreiter et al, 1993), or efficient detoxification in predatory adults or behavioral adaptation to avoid high concentrations.…”

Section: Coleopteran Larvaementioning

confidence: 99%

Cadmium in insects after ash fertilization

et al. 2009

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Ash fertilization of forests returns nutrients to forest ecosystems and has a positive effect on soil pH, but it also may elevate Cd concentrations of forest biota. Cadmium concentrations of some forest insects (Formica ants, carabids and Coleopteran larvae from decaying wood) were investigated in southern Finland, where two plots were fertilized with wood ash, while two other plots represented unfertilized control plots. In ants, mean Cd concentration was 3.6 ± 1.4 mg/kg, with nest workers having significantly higher concentrations than workers trapped in pitfall traps. Concentrations at fertilized and unfertilized plots were similar. In carabid beetles, the average Cd concentration of Carabus glabratus was 0.44 ± 0.36 mg/kg, with no significant difference between control plots and fertilized plots. In another carabid beetle, Pterostichus niger, mean Cd concentration was higher at fertilized plots compared to control plots. We conclude that the variation of Cd concentrations in the insects studied is more efficiently controlled by species-specific differences than fertilization history of the forest floor.

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“…The obtained result is not in agreement with some previously reported data (Shirley and Sibly 1999;Kenig et al 2013) which suggests that individuals exposed to lead pollution during several generations showed faster development compared to those reared on the standard medium, explaining that shorter development time is an advantage, at least, for Drosophila species, because the larval stage is less exposed to the stressful environment. Wu et al (2006) detected that the total duration of the development from larva to adult of Boettcherisca peregrine was (Schmidt et al 1991), Lymantria dispar (Gintenreiter et al 1993), Chironmus riparius (McCadhon and Pascoe 1991) and Oncopeltus fasciatus (Cervera et al 2004). Our results obtained for the duration of development in lead exposed groups shows the ability of flies to cope with the lead concentration used in this particular experiment, which needs increased time to complete their development under such stressful conditions.…”

Section: Discussionmentioning

confidence: 96%

Effect of lead pollution on fitness and its dependence on heterozygosity in Drosophila subobscura

Tanasković

Novičić

Kenig

et al. 2015

J Genet

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Lead is one of the most present contaminants in the environment, and different species respond differently to this type of polution. If combined with genomic stress, lead may act synergistically, causing significant decrease of fitness components. We used two genetically diverse Drosophila subobscura populations (regarding both putatively adaptive inversion and microsatellite loci polymorphisms) originating from two ecologically distinct habitats. To establish different levels of genome heterozygosity, series of intraline, intrapopulation and interpopulation crosses were made. The progeny were reared on a standard medium and a medium with 200 μg/mL of lead acetate. Development time was significantly extended to all groups reared on lead. The progeny of intraline crosses showed significantly extended development time compared to all other groups. The obtained results suggest that genome heterozygosity reduces the effect of lead pollution.

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Bioaccumulation of cadmium, lead, copper, and zinc in successive developmental stages of Lymantria dispar L. (Lymantriidae, Lepid)?a life cycle study

Cited by 36 publications

References 19 publications

Losses of Cd, Hg, and Zn During Metamorphosis in the Beetle Tenebrio Molitor (Coleoptera: Tenebrionidae)

Losses of Cd, Hg, and Zn During Metamorphosis in the Beetle Tenebrio Molitor (Coleoptera: Tenebrionidae)

Cadmium in insects after ash fertilization

Effect of lead pollution on fitness and its dependence on heterozygosity in Drosophila subobscura

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