Accumulation of heavy metals in food plants and grasshoppers from the Taigetos Mountains, Greece

Devkota, B.; Schmidt, Gerhard

doi:10.1016/s0167-8809(99)00110-3

Cited by 164 publications

(66 citation statements)

References 10 publications

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“…The limited data on toxicological effects of dietary nickel toward vertebrates suggests that foraging in systems such as this could harm insectivorous animals. Grasshoppers are a major component of arthropod biomass (Devkota & Schmidt 2000), and the concentrations of Ni observed in their tissues approach the level at which mammals and birds become unable to regulate their absorption and excretion of this element (Outridge & Sheuhammer 1993). The concentrations found in the "other invertebrates" category could be acutely toxic to wildlife (Cain & Pafford 1981).…”

Section: Discussionmentioning

confidence: 99%

Spread of metals through an invertebrate food chain as influenced by a plant that hyperaccumulates nickel

et al. 2003

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Summary. Hyperaccumulation of metals in the shoot system of plants is uncommon, yet taxonomically and geographically widespread. It may have a variety of functions, including defense against herbivores. This study investigated the effects of hyperaccumulation on metal concentrations across trophic levels. We collected plant material, soil, and invertebrates from Portuguese serpentine outcrops whose vegetation is dominated by the nickel hyperaccumulator Alyssum pintodasilvae. Samples were analyzed for nickel, chromium, and cobalt. Grasshoppers, spiders, and other invertebrates collected from sites where A. pintodasilvae was common had significantly elevated concentrations of nickel, compared to nearby sites where this hyperaccumulator was not found. Chromium and cobalt, occurring in high concentrations in the serpentine soil but not accumulated by A. pintodasilvae, were not elevated in the invertebrates. Therefore, it appears likely that a flux of nickel to herbivore and carnivore trophic levels is specifically facilitated by the presence of plants that hyperaccumulate this metal. The results may be relevant to the development of phytoremediation and phytomining technologies, which use plants to extract metals from the soil.

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Section: Discussionmentioning

confidence: 99%

Spread of metals through an invertebrate food chain as influenced by a plant that hyperaccumulates nickel

et al. 2003

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“…The accumulation factors of heavy metals in grasshoppers were found in the order Cd > Hg > Pb indicating a greater affinity for Cd accumulation. With the growth of muscle tissues and fat bodies during post-embryonic development (nymph to adult), the concentration of Cd was found to be steadily increasing [21]. It has been suggested that the molecular mechanism for the genotoxicity of cadmium may involve either indirect or direct interaction of with DNA [22], such as DNA strand breaks [10], DNA protein-cross linking [23], Oxidative DNA damage [24], enhanced proliferation, depressed apoptosis and inhibition of DNA repair [24][25][26].…”

Section: Cadmium Genotoxicitymentioning

confidence: 99%

DNA damage in hemocytes of Schistocerca gregaria (Orthoptera: Acrididae) exposed to contaminated food with cadmium and lead

Yousef¹,

Afify²,

Hasan³

et al. 2010

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We measured in a comet assay the damage of DNA in the hemocytes of various stages of the grasshopper Schistocerca gregaria after exposing them to various doses of Cd and Pb in the food. The mechanisms of Cd and Pb toxicity for grasshopper are discussed. The accumulation of heavy metals and stage of the insect may play important roles in causing the DNA damage. S. gregaria may be considered a valuable bioindicator for evaluation the genotoxicity of environmental pollutants.

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“…One of the major sources of addition of Cd into agricultural soils is the application of phosphate fertilizers (Grant and Sheppard, 2008). The other sources for increasing Cd pollution in the soil are industrial effluents such as manufacture of plastics, paint pigments, batteries, alloy making, electroplating and manures (Devkota and Schmidt, 2000;Nedelkoska and Doran, 2000;Yang et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

Alleviating Effect of Exogenous Application of Ascorbic Acid on Growth and Mineral Nutrients in Cadmium Stressed Barley (Hordeum vulgare) Seedlings

Ullah¹,

Javed²,

Wahid³

et al. 2015

IJAB

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An experiment was carried out in sand-filled pots under normal temperature (28±2ºC) to assess the role of exogenously applied ascorbic acid in alleviating the effect of cadmium (Cd) stress on four barley (Hordeum vulgare L.) genotypes (Jau-83, Jau-87, Paidar 91 and Haider 93). After germination, seedlings were exposed to different Cd concentrations (0, 100, 300, 500 and 700 µM CdCl2) along with AsA (200 mg L -1 ) and grown for 15 days. The results suggested that exposure to increased Cd levels caused a significant reduction in growth and mineral nutrients contents of barley seedlings. However, there was a noticeable difference in the effect of Cd on mineral concentrations among genotypes and the difference mainly coincided with differential accumulation of Cd in the shoot and root tissues. When AsA was applied to Cd-stressed plants, it decreased Cd accumulation in shoots and roots and also showed partial reversal of Cd stress effects. It was also observed that at the same Cd concentrations Cd tolerance index of Jau-83 was the highest among the four barley genotypes, indicating that Jau-83 had lower Cd contents in roots may be more tolerant to Cd stress. The application of AsA was effective in reducing the toxicity of increased Cd by reducing the root or shoots Cd contents, as well as by improving the seedling growth attributes and the mineral nutrients in barley.

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Accumulation of heavy metals in food plants and grasshoppers from the Taigetos Mountains, Greece

Cited by 164 publications

References 10 publications

Spread of metals through an invertebrate food chain as influenced by a plant that hyperaccumulates nickel

Spread of metals through an invertebrate food chain as influenced by a plant that hyperaccumulates nickel

DNA damage in hemocytes of Schistocerca gregaria (Orthoptera: Acrididae) exposed to contaminated food with cadmium and lead

Alleviating Effect of Exogenous Application of Ascorbic Acid on Growth and Mineral Nutrients in Cadmium Stressed Barley (Hordeum vulgare) Seedlings

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