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. 1991 May;173(10):3149–3158. doi: 10.1128/jb.173.10.3149-3158.1991

Coralline shape of the bacterial nucleoid after cryofixation.

B Bohrmann 1, W Villiger 1, R Johansen 1, E Kellenberger 1
PMCID: PMC207909  PMID: 2022615

Abstract

A new procedure of immunostaining sections of cryofixed and freeze-substituted Escherichia coli shows that DNA extends from its bulk into small ribosome-free spaces throughout the cytoplasm, resulting in a coralline-shaped nucleoid. Low-resolution imaging of a bacterium reconstructed from serial sections demonstrated that the small excrescencies are not resolved. The resulting photograph shows the same features as phase-contrast light micrographs.

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Selected References

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  1. BANG B. H., BANG F. B. Graphic reconstruction of the third dimension from serial electron microphotographs. J Ultrastruct Res. 1957 Dec;1(2):138–139. doi: 10.1016/s0022-5320(57)80002-1. [DOI] [PubMed] [Google Scholar]
  2. BONIFAS V., KELLENBERGER E. Etude de l'action des membranes du bactériophage T2 sur Escherichia coli. Biochim Biophys Acta. 1955 Mar;16(3):330–338. doi: 10.1016/0006-3002(55)90234-1. [DOI] [PubMed] [Google Scholar]
  3. Broyles S. S., Pettijohn D. E. Interaction of the Escherichia coli HU protein with DNA. Evidence for formation of nucleosome-like structures with altered DNA helical pitch. J Mol Biol. 1986 Jan 5;187(1):47–60. doi: 10.1016/0022-2836(86)90405-5. [DOI] [PubMed] [Google Scholar]
  4. Dubochet J., McDowall A. W., Menge B., Schmid E. N., Lickfeld K. G. Electron microscopy of frozen-hydrated bacteria. J Bacteriol. 1983 Jul;155(1):381–390. doi: 10.1128/jb.155.1.381-390.1983. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Dürrenberger M. B. Removal of background label in immunocytochemistry with the apolar Lowicryls by using washed protein A-gold-precoupled antibodies in a one-step procedure. J Electron Microsc Tech. 1989 Feb;11(2):109–116. doi: 10.1002/jemt.1060110204. [DOI] [PubMed] [Google Scholar]
  6. Dürrenberger M., Bjornsti M. A., Uetz T., Hobot J. A., Kellenberger E. Intracellular location of the histonelike protein HU in Escherichia coli. J Bacteriol. 1988 Oct;170(10):4757–4768. doi: 10.1128/jb.170.10.4757-4768.1988. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Emerman M., Behrman E. J. Cleavage and cross-linking of proteins with osmium (VII) reagents. J Histochem Cytochem. 1982 Apr;30(4):395–397. doi: 10.1177/30.4.7061831. [DOI] [PubMed] [Google Scholar]
  8. Hobot J. A., Bjornsti M. A., Kellenberger E. Use of on-section immunolabeling and cryosubstitution for studies of bacterial DNA distribution. J Bacteriol. 1987 May;169(5):2055–2062. doi: 10.1128/jb.169.5.2055-2062.1987. [DOI] [PMC free article] [PubMed] [Google Scholar]
  9. Hobot J. A., Villiger W., Escaig J., Maeder M., Ryter A., Kellenberger E. Shape and fine structure of nucleoids observed on sections of ultrarapidly frozen and cryosubstituted bacteria. J Bacteriol. 1985 Jun;162(3):960–971. doi: 10.1128/jb.162.3.960-971.1985. [DOI] [PMC free article] [PubMed] [Google Scholar]
  10. Kellenberger E. About the organisation of condensed and decondensed non-eukaryotic DNA and the concept of vegetative DNA (a critical review). Biophys Chem. 1988 Feb;29(1-2):51–62. doi: 10.1016/0301-4622(88)87024-8. [DOI] [PubMed] [Google Scholar]
  11. Kellenberger E., Carlemalm E., Stauffer E., Kellenberger C., Wunderli H. In vitro studies of the fixation of DNA, nucleoprotamine, nucleohistone and proteins. Eur J Cell Biol. 1981 Aug;25(1):1–4. [PubMed] [Google Scholar]
  12. Kellenberger E. The potential of cryofixation and freeze substitution: observations and theoretical considerations. J Microsc. 1991 Feb;161(Pt 2):183–203. doi: 10.1111/j.1365-2818.1991.tb03083.x. [DOI] [PubMed] [Google Scholar]
  13. Koch A. L. Biophysics of bacterial walls viewed as stress-bearing fabric. Microbiol Rev. 1988 Sep;52(3):337–353. doi: 10.1128/mr.52.3.337-353.1988. [DOI] [PMC free article] [PubMed] [Google Scholar]
  14. Leirmo S., Harrison C., Cayley D. S., Burgess R. R., Record M. T., Jr Replacement of potassium chloride by potassium glutamate dramatically enhances protein-DNA interactions in vitro. Biochemistry. 1987 Apr 21;26(8):2095–2101. doi: 10.1021/bi00382a006. [DOI] [PubMed] [Google Scholar]
  15. MASON D. J., POWELSON D. M. Nuclear division as observed in live bacteria by a new technique. J Bacteriol. 1956 Apr;71(4):474–479. doi: 10.1128/jb.71.4.474-479.1956. [DOI] [PMC free article] [PubMed] [Google Scholar]
  16. Pettijohn D. E., Pfenninger O. Supercoils in prokaryotic DNA restrained in vivo. Proc Natl Acad Sci U S A. 1980 Mar;77(3):1331–1335. doi: 10.1073/pnas.77.3.1331. [DOI] [PMC free article] [PubMed] [Google Scholar]
  17. RYTER A., KELLENBERGER E., BIRCHANDERSEN A., MAALOE O. Etude au microscope électronique de plasmas contenant de l'acide désoxyribonucliéique. I. Les nucléoides des bactéries en croissance active. Z Naturforsch B. 1958 Sep;13B(9):597–605. [PubMed] [Google Scholar]
  18. RYTER A. [Electron microscopic study of the nuclear transformations 05 E. coli K12S and K12S (lambda 26) after irradiation with ultraviolet rays and x-rays]. J Biophys Biochem Cytol. 1960 Oct;8:399–412. [PMC free article] [PubMed] [Google Scholar]
  19. Rouvière-Yaniv J. Localization of the HU protein on the Escherichia coli nucleoid. Cold Spring Harb Symp Quant Biol. 1978;42(Pt 1):439–447. doi: 10.1101/sqb.1978.042.01.047. [DOI] [PubMed] [Google Scholar]
  20. Ryter A. Association of the nucleus and the membrane of bacteria: a morphological study. Bacteriol Rev. 1968 Mar;32(1):39–54. doi: 10.1128/br.32.1.39-54.1968. [DOI] [PMC free article] [PubMed] [Google Scholar]
  21. SCHULTZ S. G., SOLOMON A. K. Cation transport in Escherichia coli. I. Intracellular Na and K concentrations and net cation movement. J Gen Physiol. 1961 Nov;45:355–369. doi: 10.1085/jgp.45.2.355. [DOI] [PMC free article] [PubMed] [Google Scholar]
  22. Séchaud J., Kellenberger E. Electron microscopy of DNA-containing plasms. IV. Glutaraldehyde-uranyl acetate fixation of virus-infected bacteria for thin sectioning. J Ultrastruct Res. 1972 Jun;39(5):598–607. doi: 10.1016/s0022-5320(72)90124-4. [DOI] [PubMed] [Google Scholar]
  23. Valkenburg J. A., Woldringh C. L., Brakenhoff G. J., van der Voort H. T., Nanninga N. Confocal scanning light microscopy of the Escherichia coli nucleoid: comparison with phase-contrast and electron microscope images. J Bacteriol. 1985 Feb;161(2):478–483. doi: 10.1128/jb.161.2.478-483.1985. [DOI] [PMC free article] [PubMed] [Google Scholar]
  24. Valkenburg J. A., Woldringh C. L. Phase separation between nucleoid and cytoplasm in Escherichia coli as defined by immersive refractometry. J Bacteriol. 1984 Dec;160(3):1151–1157. doi: 10.1128/jb.160.3.1151-1157.1984. [DOI] [PMC free article] [PubMed] [Google Scholar]
  25. WHITFIELD J. F., MURRAY R. G. The effects of the ionic environment on the chromatin structures of bacteria. Can J Microbiol. 1956 May;2(3):245–260. doi: 10.1139/m56-029. [DOI] [PubMed] [Google Scholar]

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