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Published March 1, 1952 | public
Journal Article Open

Observations on the Behavior of Suppressors in Neurospora

Abstract

A suppressor of pyrimidineless 3a (37301) and some aspects of the behavior of the suppressed mutant have been described earlier. [1] The observation that lysine, ornithine, citrulline and arginine influence growth responses of the suppressed mutant suggested studies of the behavior of recombinants involving pyr 3a and s and mutants having requirements for these amino acids. Effects of the pyrimidineless mutant and its suppressor upon certain lysine-requiring mutants have been reported. [2] The present paper deals with a somewhat greater variety of interactions observed between pyr 3a and s and mutants which utilize proline, ornithine, citrulline or arginine. [3] These interactions include suppression of two non-allelic prolineless mutants by the pyrimidineless suppressor and partial suppression of pyr 3a by three non-allelic ornithineless mutants.

Additional Information

Copyright © 1952 by the National Academy of Sciences Communicated by G. W. Beadle, January 14, 1952 Work supported by grants from the Rockefeller Foundation.

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August 21, 2023
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