Do unicellular organisms age?

Marek Tchorzewski TCHORZ at BIOTOP.UMCS.LUBLIN.PL
Fri Jun 2 04:01:56 EST 1995


Hi Dmitri

>   Why do you think it is age process? I thought mother cell and 
>   daughter cell absolutely identical, are they?
>   Yours  truly
>    Dmitri

O no, you are not right. The division of a yeast ( S.cerevisiae) cell 
budding give rise to two cells which are identifiable, that is, the mother 
cell from which the bud arose, and the daughter cell which developed 
from the bud.
Therefore, yeast cell (S.c.) produce a finite number of daughters during 
their life span, which are elaborated on the surface of mother cell as a 
bud.
The number of buds produced by mother, one during each cell division
cycle, is the metric of the life span and as I sad before is finite (26-30 
bud).

Marek




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