Abstract
Aspergillus terreus was cultivated on Harrold's medium supplemented with 0.1% (w/v) cadmium chloride as well as on sulfur free medium amended with 0.1% (w/v) sodium selenite and potassium tellurite separately. The cell free extract of the fungus for each treatment was fractionated on a column packed with Sephadex G 75. The results demonstrated the ability of the fungus to synthesize several cadmium, selenium, and tellurium-binding proteins as well as metallothionein. The results suggested the biosynthesis of heavy metals chelators as well. The amino acids composition of a cadmium-binding metallothionein revealed the presence of high levels of both aromatic and sulfur amino acids in the hydrolysate.
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Abbass, I.M., Razak, A.A. Cadmium, selenium, and tellurium chelators inAspergillus terreus . Biol Trace Elem Res 28, 173–179 (1991). https://doi.org/10.1007/BF02990464
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DOI: https://doi.org/10.1007/BF02990464