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Effect of pH and organic matter on the toxicity of heavy metals to growth of some fungi

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Abstract

Increasing the pH from 5 to 9 decreased the toxicity of mercuric chloride, zinc sulfate, lead nitrate, copper sulfate and nickel chloride toward the growth ofAspergillus flavus, Penicillium chrysogenum, Cunninghamella echinulata, Myrothecium verrucaria andPhoma humicola. On the other hand, the toxicity of cadmium chloride was increased by the increasing pH. Also increasing the concentration of organic matter (peptone and yeast extract) from 0.5 to 1.5% induced a significant reduction in the toxicity of all heavy metals toward the growth of all test fungi.

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Authors and Affiliations

  1. Botany Department, Faculty of Science, Assiut University, Assiut, Egypt

    M. M. K. Bagy & A. A. El-Shanawany

  2. Botany Department, Faculty of Science (Sohag), Assiut University, Assiut, Egypt

    H. M. M. El-Sharouny

Authors
  1. M. M. K. Bagy
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  2. H. M. M. El-Sharouny
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  3. A. A. El-Shanawany
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Bagy, M.M.K., El-Sharouny, H.M.M. & El-Shanawany, A.A. Effect of pH and organic matter on the toxicity of heavy metals to growth of some fungi. Folia Microbiol 36, 367–374 (1991). https://doi.org/10.1007/BF02814511

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  • DOI: https://doi.org/10.1007/BF02814511

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