doi: 10.1073/pnas.73.6.1882.
Morphogenesis of the bacterial division septum: a new class of septation-defective mutants
- PMID: 778849
- PMCID: PMC430411
- DOI: 10.1073/pnas.73.6.1882
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Morphogenesis of the bacterial division septum: a new class of septation-defective mutants
Proc Natl Acad Sci U S A.
1976 Jun.
Abstract
A new class of mutants of Salmonella typhimurium (lkyD mutants) are described. The mutants are defective in morphogenesis of the division septum, and are characterized by a failure of the outer membrane to invaginate despite normal ingrowth of the cytoplasmic membrane and murein layers of the growing septum. The cell envelopes of the mutants show a significant decrease in the bound form of murein-lipoprotein and a corresponding increase in the free form of the lipoprotein. This suggests that the morphogenic defect may result from a defect in formation of covalent bonds between the free lipoprotein of the outer membrane and the murein of the nascent septum.
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