Mutant of the Yeast Saccharomycopsis Lipolytica That Accumulates and Excretes Protorphyrin IX
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The red, water-insoluble pigment excreted by a mutant strain of the yeast Saccharomycopsis lipolytica is show to be protoporphyrin IX. In genetic crosses the red phenotype has the properties characteristic of a defect in a single, recessive nuclear gene. The yield and ease of harvest of protoporphyrin IX from the yeast mutant indicate that this strain or its derivatives may be a valuable source of this substance.
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