PMID: 8981992Jan 1, 1997Paper

Fine-structure evidence for cell membrane partitioning of the nucleoid and cytoplasm during bud formation in Hyphomonas species

Journal of Bacteriology
P M ZerfasR M Weiner

Abstract

Hyphomonas spp. reproduce by budding from the tip of the prosthecum, distal to the main body of the reproductive cell; thus, the chromosome must travel through the prosthecum to enter the progeny, the swarm cell. When viewed by electron microscopy, negatively stained whole cells, ultrathin-sectioned cells, and freeze-etched and frozen hydrated cells all had marked swellings of the cytoplasmic membrane (CM) in the prosthecum which are termed pseudovesicles (PV). PV were separated by constrictions in the contiguous CM. In replicating cells, PV housed ribosomes and DNA, which was identified by its fibrillar appearance and by lactoferrin-gold labeling. The micrographs also revealed that the CM bifurcates at the origin of the prosthecum so that one branch partitions the main body of the reproductive cell from the prosthecum and swarm cell. The results of this fine-structure analysis suggest models explaining DNA segregation and the marked asymmetric polarity of the budding reproductive cell.

References

Jan 1, 1979·Cold Spring Harbor Symposia on Quantitative Biology·C L PeeblesN R Cozzarelli
Jan 1, 1990·Journal of Bacteriology·S HiragaH Mori
Aug 7, 1987·Journal of Theoretical Biology·T Cavalier-Smith
Dec 1, 1973·Journal of Bacteriology·R L Moore, P Hirsch
Jan 1, 1969·Journal of Ultrastructure Research·A R Spurr
Apr 1, 1981·The Journal of Histochemistry and Cytochemistry : Official Journal of the Histochemistry Society·M Bendayan
Oct 1, 1994·Journal of Bacteriology·C L WoldringhN B Grover
Apr 1, 1993·Current Opinion in Cell Biology·P A de Boer
Nov 1, 1961·The Journal of Biophysical and Biochemical Cytology·E S BOATMAN, H C DOUGLAS

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Citations

Sep 10, 2010·Annual Review of Microbiology·Kevin D Young
Jul 4, 2001·Nature Reviews. Molecular Cell Biology·J ErringtonL J Wu
Mar 2, 2005·Nature Reviews. Microbiology·Esther R Angert
Jun 14, 2017·Journal of Bacteriology·Megan J DobroGrant J Jensen
Feb 18, 2006·Journal of Bacteriology·Arieh ZaritskySvetlana Alexeeva
May 4, 1999·Infection and Immunity·A C WrightM B Sztein

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