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. 1981;82(3):333-40.
doi: 10.1007/BF00285759.

Nuclear morphology of yeast under thymidylate starvation

P B Moens, B J Barclay, J G Little

Nuclear morphology of yeast under thymidylate starvation

P B Moens et al. Chromosoma. 1981.

Abstract

During early meiotic development the yeast Saccharomyces cerevisiae has a characteristic nuclear dense body (NDB). It is shown that the NDB can also be induced in vegetatively growing cells through the inhibition of thymidylate synthetase which causes depletion of the dTMP pool and arrests DNA synthesis. The observations on NDBs and recombination levels suggest that thymidylate-stressed cells may activate parts of the meiotic pathway and, conversely, cells on sporulation medium may sense, among other things, reduced thymidylate levels and respond to the several stimuli by entering the meiotic pathway.

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