Dietary cadmium (Cd) reduces hemocyte level by induction of apoptosis in Drosophila melanogaster

Nanda, Kumari Pragati; Firdaus, Hena

doi:10.1016/j.cbpc.2021.109188

Cited by 5 publications

(1 citation statement)

References 38 publications

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“…Also, a significant decrease has been observed in plasmatocyte and crystal cells in the haemolymph of third instar larvae of D. melanogaster . The haemocytes of insects are the major cellular immune mediators; a decrease in their number will affect an insect's potential to mount a suitable immune response against various pathogens (Nanda & Firdaus, 2021).…”

Section: Discussionmentioning

confidence: 99%

Responses of continuous cadmium exposure on some biological and physiological performance of cotton bollworm Helicoverpa armigera

Azizi,

Jalali Sendi

2024

Physiological Entomology

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A detailed effect of continuous exposure of Cd on an important pest of crops like Helicoverpa armigera is lacking in the current literature. The cadmium was provisioned at 1.25, 2.5 and 5 mg/kg in the artificial diet and fed to newly hatched larvae for at least three subsequent generations. The total developmental period and fecundity were severely affected with no larval hatching in treated insects. Total haemocyte count and differential haemocyte count (i.e., granulocytes and plasmatocytes) were decreased significantly compared to controls in treated insects. The antioxidant system (i.e., catalase, glucose‐6‐phosphate dehydrogenase, superoxide dismutase and peroxidase), and the two detoxifying agents glutathione‐s‐transferase showed increased activity compared to controls. The results of the acetylcholinesterase assay showed a decrease in activity. Increased rate of aspartate aminotransferase, alanine aminotransferase, uric acid and decreased rate of alkaline phosphatase and lactate dehydrogenase in the first generation but showing an increasing trend in next two generations. The acid phosphatase activity was increased in the first two generations but significantly reduced in the third generation. The discrepancy in all physiological activities corresponded with the histological study of midgut infrastructure. It is inferred from the obtained results that cadmium continuous exposure affects every system of any organism that may perform irreparable damages.

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Section: Discussionmentioning

confidence: 99%

Responses of continuous cadmium exposure on some biological and physiological performance of cotton bollworm Helicoverpa armigera

Azizi,

Jalali Sendi

2024

Physiological Entomology

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Exposure to urban heavy metal contamination diminishes bumble bee colony growth

2022

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1. As a result of their industrial past, legacy cites often have elevated concentrations of soil heavy metal contamination. Metal pollution can have negative and prolonged ecosystem impacts, and bees that forage in these urban ecosystems are at risk of exposure. Legacy cities are known to support species rich bee communities, which highlights the importance of determining the impact of heavy metal contamination on wild bee health.2. We examined how oral exposure to concentrations of four heavy metals found within the provisions of urban bees in uenced colony growth of Bombus impatiens Cresson (Hymenoptera: Apidae), a common species within legacy cities across the eastern United States. Colony weight and brood survivorship were compared among hives fed uncontaminated sucrose solution (hereafter nectar), nectar spiked with one metal (arsenic, cadmium, chromium, or lead), and nectar containing all metals, after 15 or 30 d of exposure within ight tents.3. Across both exposure periods, we found a signi cantly higher proportion of dead brood in metal exposed hives. Additionally, colonies fed all four metals had a signi cantly higher proportion of dead brood than those fed a single metal.4. Synthesis and applications. Our ndings illustrate that even low, environmentally relevant concentrations of metals collected by B. impatiens in legacy cities can negatively in uence bee colony tness. We highlight the need to identify metal exposure routes for bees in contaminated landscapes to minimize risk and bolster conservation habitat initiative success.CFAES SEEDS grant to S.B.S.

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The role of Drosophila melanogaster in neurotoxicology studies: Responses to different harmful substances

Dahleh¹,

Prigol²

2023

Advances in Neurotoxicology

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Dietary cadmium (Cd) reduces hemocyte level by induction of apoptosis in Drosophila melanogaster

Cited by 5 publications

References 38 publications

Responses of continuous cadmium exposure on some biological and physiological performance of cotton bollworm Helicoverpa armigera

Responses of continuous cadmium exposure on some biological and physiological performance of cotton bollworm Helicoverpa armigera

Exposure to urban heavy metal contamination diminishes bumble bee colony growth

The role of Drosophila melanogaster in neurotoxicology studies: Responses to different harmful substances

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