Abstract
Two poorly lytic, chain-forming mutants of Bacillus subtilis 168, strains FJ3 and FJ6, each 90–95% deficient in the production of N-acetylmuramoyl-L-alanine amidase and endo-β-N-acetylglucosaminidase, grew helically under a variety of cultural conditions. The structures formed ranged in complexity from double-stranded helices to complex aggregates of entangled and interwoven single chains and multistranded helical fibers. Factors favoring this type of helical growth were investigated. Occasional tight single-stranded corkscrewlike forms were detected in the mutant cultures. Two other poorly lytic mutant strains of Bacillus were also found to have helical growth capacity. These results have been interpreted as support for the recently proposed (1976) tension restricted helical growth model of Mendelson.
Publisher
Canadian Science Publishing
Subject
Genetics,Molecular Biology,Applied Microbiology and Biotechnology,General Medicine,Immunology,Microbiology
Cited by
27 articles.
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