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Genetic analysis of cell division mutants dv1211 and ad651 of Escherichia coli k12

Fernando Portela Câmara^I; Darcy Fontoura de Almeida^II

^IInstituto de Microbiologia, Universidade Federal do Rio de Janeiro, CCS, Bloco I, Cidade Universitária, 21944 Rio de Janeiro, RJ, Brasil. Send correspondence to F.P.C.
^IIInstituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, CCS, Bloco G, Cidade Universitária, 21944 Rio de Janeiro, RJ, Brasil

ABSTRACT

The DV1211 and AD651 mutant strains of Escherichia coli K12 are temperature-sensitive filament-forming mutants mapped at 0 and 3.5 minutes, respectively. Filaments formed at 42°C take about 30 minutes at 30°C to recover cell division ability and this property is chloramphenicol sensitive. These mutants show a common alteration in their protein membranes that seems related to a phenotypic character of this mutation.

Keywords: genetic; cell; mutants; Escherichia coli.

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