1887

Abstract

SUMMARY: and (ATCC 29551), examined by frozen-surface replica and freeze-etch techniques, displayed undulated and particulated surfaces. They produced copious amounts of extracellular slime when cultured. contained large, complex mesosomes in freeze-etched cells whereas contained none. In non-cryoprotected freeze-etch preparations, contained two major fracture planes whereas the cell envelope fractured in three distinct planes. Linear fibres, such as the peripheral fibrils previously described in , were not observed in the outer membrane of freeze-etched contained periplasmic linear fibrils; however, these appeared to be associated with the outer surface of the cytoplasmic membrane or an intermediate layer and not with peripheral fibrils.

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1979-06-01
2021-05-10
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