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J. Bacteriol., Jul 1996, 3877-3884, Vol 178, No. 13
SG Addinall, E Bi and J Lutkenhaus
The formation of FtsZ rings (Z rings) in various fts mutants was examined
by immunoelectron microscopy and immunofluorescence. In two
temperature-sensitive ftsZ mutants which form filaments with smooth
morphology, the Z ring was unable to form. In ftsA, ftsI, and ftsQ mutants,
which form filaments with an indented morphology, Z rings formed but their
contraction was blocked. These results indicate that fully functional ftsA,
ftsQ, and ftsI genes are not required for Z-ring formation and are unlikely
to have a role in localization of the Z ring. The results also suggest that
one function of the Z ring is to localize the activity of other fts gene
products.
Copyright © 1996, American Society for Microbiology
FtsZ ring formation in fts mutants
Department of Microbiology, Molecular Genetics and Immunology, Kansas 66160, USA.
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