5-Azacytidine Induces Heritable Biochemical and Developmental Changes in the Fungus Aspergillus niger Free

Abstract

Transient exposure of mycelia from to the cytidine analogue 5-azacytidine, at concentrations which do not affect the growth rate of the fungus on nearly minimal media, result in a dose-dependent, heritable change in the timing of the conidiation programme as well as heritable over-production of adaptive enzymes (glycosidases and phosphatases) and modification in the control properties of acid phosphatase. These heritable changes are induced by 5-azacytidine in a non-random way since the new phenotypes are exhibited not only by isolated clones but also by mixed populations of mycelia several life cycles (thousands of mitoses) after exposure to the drug.

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1983-08-01
2024-03-29
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