Effect of aflatoxin B1, ochratoxin and rubratoxin B on a protozoan,Tetrahymena pyriformis HSM |
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| Authors: | A Wallace Hayes Rena Melton Shelley J Smith |
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| Institution: | (1) The Department of Microbiology, The University of Alabama, 35486 University, Ala. |
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| Abstract: | Summary Rubratoxin B is more inhibitory to the growth ofT. pyriformis than is either aflatoxin B1 or ochratoxin. Only a marginal effect on cell respiration was exerted by these mycotoxins. The presence of the divalent ions, Mg++, Ca++ and Fe++, did not reduce the toxicity of rubratoxin B. A bioassay sensitive to 1 to 5  g/ml rubratoxin B has been developed employingT. pyriformis. |
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