Excretion of cadmium during moulting and metamorphosis in Tenebrio molitor (Coleoptera; Tenebrionidae)

Lindqvist, Lars; Block, Mats

doi:10.1016/0742-8413(95)00057-u

Cited by 27 publications

(26 citation statements)

References 6 publications

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“…Generally, heavy metal amounts in insects were positive correlated to the stressing time. For example, when larvae of Tenebrio molitor (L.) were given food containing cadmium for only 1 d, it lost almost all of cadmium during metamorphosis; however, when larvae continuously fed on food with different doses of cadmium, though it also excreted a part of cadmium during metamorphosis, cadmium amounts in larvae and newly emerged adults were significantly correlated with those in food and feeding time [21] .…”

Section: Discussionmentioning

confidence: 91%

Nickel accumulation and its effects on the survival rate of Spodoptera litura fabricius under continuous nickel stress

et al. 2007

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The artificial diets mixed with various concentrations of nickel were offered to the larvae of the phytophagous insect Spodoptera litura Fabricius for 3 generations. Nickel accumulations in the 6th instar larvae, pupae and newly emerged adults of the corresponding generations of S. litura were investigated by Inductively Coupled Plasma-Atomic Emission Spectrometer (ICP-AES), and the effects of nickel accumulations on the survival rate of S. litura were also evaluated by individual rearing. The results showed that nickel accumulated in the 6th instar larvae, pupae and adults of S. litura, and the accumulated nickel in all the tested developmental stages within a generation increased with the increase of the nickel doses in the treated diets and showed significant dose-dependent relationship with the nickel doses in the artificial diets. The results also indicated that the nickel accumulations in the 6th instar larvae, pupae, and newly emerged adults from the 3rd generation were higher than those from the 2nd generation, which were also higher than those from the 1st generation. Nickel concentrations in pupae and adults were significantly lower than those in larvae, which indicated that the excessive nickel might be excreted during metamorphosis. Furthermore, larval survival rate, pupation rate and eclosion rate of S. litura in the tested three generations all decreased with the increase of the nickel doses in the treated diets.heavy metal, nickel, Spodoptera litura, accumulation, survival rate Nickel has become one of the most popular environmental contaminants all over the world. It was reported that almost 40% farmland in Pearl River Delta had been polluted by nickel and the highest nickel concentration in the contaminated land reached 110 mg/kg, while the background was only 27.7 mg/kg [1] . It has demonstrated that heavy metal accumulation resulting from plants uptaking might influence the growth and development of vegetables, for example, the toxic concentration of nickel in some vegetables ranges from 10 to 30 mg/kg [2] . However, relatively few works were available on the effects of nickel accumulation in plants on phytophagous insects.Few literatures had reported the effects of heavy metal nickel on the population and ecological parameters of several insects. It was found that excess nickel could be accumulated in Coleopterous Chrysolina pardalina (Fabricius) [3] , Chrysomela lapponica (L.) [4] , Lepidopterous Lymantria dispar (L.) [5] , Eriocrania semipurpurella (Stephens) [6] , Epirrita autumnata (Borkhausen) [7] , and Trichopterous Stenopsyche marmorata (Navas) [8] , and some nickel accumulated in insects could be eliminated either with exuviae during metamorphosis of C. pardalina or through meconium of E. semipurpurella. The larval density and survival of E. autumnatais increased significantly with distance from the nickel smelters, but the immune response such as

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Section: Discussionmentioning

confidence: 91%

Nickel accumulation and its effects on the survival rate of Spodoptera litura fabricius under continuous nickel stress

et al. 2007

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“…However, the amount of metal assimilation may differ from food between larvae and imago stages (Bednarska and Laskowski, 2009). Larvae can select the metals incorporated into the exoskeleton and the elimination of metals may be more efficient in larvae than in adults (Lindqvist and Block, 1995). Thus, the differences between the toxic element concentrations of species may be caused by the different food preferences and different breeding.…”

Section: Discussionmentioning

confidence: 98%

Distribution of toxic elements between biotic and abiotic components of terrestrial ecosystem along an urbanization gradient: Soil, leaf litter and ground beetles

Simon

Harangi

Baranyai

et al. 2016

Ecological Indicators

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“…In Coleoptera, increased dietary Cd levels lead to increased Cd body concentrations [29–31], as was observed in the YMW in this study (significant difference between Cd treatments and controls). In the YMW two pools of Cd exist; a small proportion penetrates the epithelium through Ca 2+ channels to reach other tissues [30, 32], while most of the Cd is stored in the gut epithelium and bound by a cadmium-binding protein [33]. The cells of the midgut epithelium in this species have a four day lifespan, after which their contents, including the bound Cd, is released into the lumen of the gut and, subsequently, excreted in the faeces [30, 33].…”

Section: Discussionmentioning

confidence: 99%

“…In the YMW two pools of Cd exist; a small proportion penetrates the epithelium through Ca 2+ channels to reach other tissues [30, 32], while most of the Cd is stored in the gut epithelium and bound by a cadmium-binding protein [33]. The cells of the midgut epithelium in this species have a four day lifespan, after which their contents, including the bound Cd, is released into the lumen of the gut and, subsequently, excreted in the faeces [30, 33]. However, the fraction of Cd that has penetrated the gut and is distributed amongst other organs is retained longer [30, 33].…”

Section: Discussionmentioning

confidence: 99%

Uptake of Cadmium, Lead and Arsenic by Tenebrio molitor and Hermetia illucens from Contaminated Substrates

et al. 2016

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Insects have potential as a novel source of protein in feed and food production in Europe, provided they can be used safely. To date, limited information is available on the safety of insects, and toxic elements are one of the potential hazards of concern. Therefore, we aimed to investigate the potential accumulation of cadmium, lead and arsenic in larvae of two insect species, Tenebrio molitor (yellow mealworm) and Hermetia illucens (black soldier fly), which seem to hold potential as a source of food or feed. An experiment was designed with 14 treatments, each in triplicate, per insect species. Twelve treatments used feed that was spiked with cadmium, lead or arsenic at 0.5, 1 and 2 times the respective maximum allowable levels (ML) in complete feed, as established by the European Commission (EC). Two of the 14 treatments consisted of controls, using non-spiked feed. All insects per container (replicate) were harvested when the first larva in that container had completed its larval stage. Development time, survival rates and fresh weights were similar over all treatments, except for development time and total live weight of the half of the maximum limit treatment for cadmium of the black soldier fly. Bioaccumulation (bioaccumulation factor > 1) was seen in all treatments (including two controls) for lead and cadmium in black soldier fly larvae, and for the three arsenic treatments in the yellow mealworm larvae. In the three cadmium treatments, concentrations of cadmium in black soldier fly larvae are higher than the current EC maximum limit for feed materials. The same was seen for the 1.0 and 2.0 ML treatments of arsenic in the yellow mealworm larvae. From this study, it can be concluded that if insects are used as feed materials, the maximum limits of these elements in complete feed should be revised per insect species.

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Excretion of cadmium during moulting and metamorphosis in Tenebrio molitor (Coleoptera; Tenebrionidae)

Cited by 27 publications

References 6 publications

Nickel accumulation and its effects on the survival rate of Spodoptera litura fabricius under continuous nickel stress

Nickel accumulation and its effects on the survival rate of Spodoptera litura fabricius under continuous nickel stress

Distribution of toxic elements between biotic and abiotic components of terrestrial ecosystem along an urbanization gradient: Soil, leaf litter and ground beetles

Uptake of Cadmium, Lead and Arsenic by Tenebrio molitor and Hermetia illucens from Contaminated Substrates

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