๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Is Escherichia coli getting old?

โœ Scribed by Conrad L. Woldringh

Book ID
101707844
Publisher
John Wiley and Sons
Year
2005
Tongue
English
Weight
166 KB
Volume
27
Category
Article
ISSN
0265-9247

No coin nor oath required. For personal study only.

โœฆ Synopsis

Whether or not bacteria divide symmetrically, the inheritance of cell poles is always asymmetrical. Because each cell carries an old and a new pole, its daughters will not be the same. Tracking poles of cells and measuring their lengths and doubling times in micro-colonies, Stewart et al.1 observed that growth rate diminished in cells inheriting old poles and concluded that these cells are susceptible to aging. Here, their results are compared with studies on the variabilities of length and age at division. It is argued that the decreased growth rate in old pole cells falls within the expected variation and may therefore be sufficiently far from a catastrophe-like cell death through aging.

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