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Effect of cadmium-feeding on tissue concentrations of elements in germ-free silkworm (Bombyx mori) larvae and distribution of cadmium in the alimentary canal



Effect of cadmium-feeding on tissue concentrations of elements in germ-free silkworm (Bombyx mori) larvae and distribution of cadmium in the alimentary canal



Comparative Biochemistry and Physiology. C, Comparative Pharmacology and Toxicology 79(2): 249-253



Silkworm (Bombyx mori) larvae were reared on an artificial diet containing cadmium (Cd) at concentrations of 5 and 80 micrograms/g wet diet from hatching to the fourth instar and then for 5 days at the fifth instar, respectively. Concentrations of Cd and other elements in the alimentary canal, Malpighian tubes, silk gland, fat body and other organs were determined simultaneously by inductively coupled argon plasma-atomic emission spectrometry. Cd was accumulated in the alimentary canal and Malpighian tubes at concentrations of 1100 and 470 micrograms/g dry wt, respectively. The distribution of Cd in the supernatants of the two highly accumulated organs were determined on an SW column by high performance liquid chromatography-atomic absorption spectrophotometry. Cd was primarily bound to inducible high molecular weight Cd-binding proteins.

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Accession: 042897838

Download citation: RISBibTeXText

PMID: 6151448

DOI: 10.1016/0742-8413(84)90194-4


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