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Induction and stabilization of synchrony in the cell division ofEscherichia coli

✍ Scribed by Gerasimos Demetriou Anagnostopoulos

Publisher: Springer
Year: 1976
Tongue: English
Weight: 414 KB
Volume: 107
Category: Article
ISSN: 0302-8933
DOI: 10.1007/bf00446840

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✦ Synopsis

Escherichia coli strains B5 and B/r/l were grown under conditions of periodic glucose starvation in a minimal medium. Such conditions of growth give rise to two synchronous populations that are out of phase regarding their time of division, one dividing shortly after a new supply of fresh medium and the other at a later stage of the feeding cycle. Preferential selection of one of the two populations using heat treatment resulted in a homogeneous synchronized culture that exhibited in a non-limiting medium of a high degree of synchrony that was long lasting. Synchrony and its persistence could survive preservation of such a synchronized culture by freeze drying. An explanation of the synchrony persistence was put forward and the practical implications of these findings were discussed.

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