Wright M, Del Castillo L, Oustrin ML. Characterization of thermosensitive mutants of Physarum polycephalum a plasmodial screening method for cell cycle mutants based upon synchronization at the restrictive temperature.
Curr Genet 1980;
1:203-8. [PMID:
24189660 DOI:
10.1007/bf00390945]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/1979] [Indexed: 11/26/2022]
Abstract
A screening procedure for cell cycle mutants among is mutants of Physarum has been developed for unsynchronized microplasmodia. The synchronization of the microplasmodia and the ratio of pre- to post-mitotic nuclei were evaluated after a transient shift-up to the non-permissive temperature. In contrast with wild type and is mutants not blocked in a cell cycle event, putative cell cycle mutants were synchronized. Among them, three strains which showed a reduction of DNA synthesis had an abnormally increased ratio of pre- to post-mitotic nuclei. Thus, this methodology seems to be efficient and more rapid than the previously published procedures for detecting cell-cycle mutants of Physarum.
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