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Martínez-Salas E, Martín JA, Vicente M. Relationship of Escherichia coli density to growth rate and cell age. J Bacteriol. 1981;147(1):97-100doi: 10.1128/jb.147.1.97-100.1981.
Martínez-Salas, E., Martín, J. A., & Vicente, M. (1981). Relationship of Escherichia coli density to growth rate and cell age. Journal of bacteriology, 147(1), 97-100. https://doi.org/10.1128/jb.147.1.97-100.1981
Martínez-Salas, E, et al. "Relationship of Escherichia coli density to growth rate and cell age." Journal of bacteriology vol. 147,1 (1981): 97-100. doi: https://doi.org/10.1128/jb.147.1.97-100.1981
Martínez-Salas E, Martín JA, Vicente M. Relationship of Escherichia coli density to growth rate and cell age. J Bacteriol. 1981 Jul;147(1):97-100. doi: 10.1128/jb.147.1.97-100.1981. PMID: 7016845; PMCID: PMC216012.
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J Bacteriol. 1981 Jul;147(1):97-100. doi: 10.1128/jb.147.1.97-100.1981.

Relationship of Escherichia coli density to growth rate and cell age.

Journal of bacteriology

E Martínez-Salas, J A Martín, M Vicente

PMID: 7016845 PMCID: PMC216012 DOI: 10.1128/jb.147.1.97-100.1981
Free PMC Article

Abstract

The cell densities of Escherichia coli strains B/rA, BrF, and K-12 (OV-2) were measured at several growth rates and found to be very near 1.105 g/ml in all cases. Ninety percent of the cells of any exponentially growing population banded at densities differing less than 0.75% from the mean. Synchronized populations of B/rA selected as newborn cells were found to keep their density constant for longer than one generation time. However, if selection was based on cell size, by sedimentation through a sucrose gradient, cell density was found to be almost 2% lower than that of newborn cells, but it reached normal values before the first division had taken place. These results meant that mass and volume during the lifetime of the bacterial cell followed parallel kinetics. It was unlikely that density could regulate any event of the lifetime of a cell; on the contrary, density seemed to be a physical parameter that was well controlled during the bacterial growth.

Cited by

Gangwe Nana GY, Ripoll C, Cabin-Flaman A, Gibouin D, Delaune A, Janniere L, Grancher G, Chagny G, Loutelier-Bourhis C, Lentzen E, Grysan P, Audinot JN, Norris V.
Front Microbiol. 2018 May 11;9:849. doi: 10.3389/fmicb.2018.00849. eCollection 2018.
PMID: 29867792

References

  1. Nature. 1968 Sep 7;219(5158):1077-9 - PubMed
  2. J Gen Microbiol. 1962 Apr;28:15-33 - PubMed
  3. Nature. 1976 Nov 25;264(5584):328-33 - PubMed
  4. J Gen Microbiol. 1977 Jan;98(1):177-86 - PubMed
  5. Nature. 1978 Jan 19;271(5642):244-5 - PubMed
  6. J Bacteriol. 1978 Apr;134(1):330-7 - PubMed
  7. J Bacteriol. 1978 May;134(2):423-33 - PubMed
  8. J Theor Biol. 1978 Aug 21;73(4):711-21 - PubMed
  9. Cell. 1979 Oct;18(2):287-96 - PubMed
  10. J Bacteriol. 1979 Nov;140(2):388-94 - PubMed
  11. J Bacteriol. 1980 Feb;141(2):806-13 - PubMed
  12. J Bacteriol. 1980 Jun;142(3):869-78 - PubMed
  13. J Bacteriol. 1980 Sep;143(3):1241-52 - PubMed
  14. J Bacteriol. 1980 Nov;144(2):532-41 - PubMed
  15. J Bacteriol. 1973 May;114(2):603-11 - PubMed

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