Re: Unusual reponse of Artemia franciscana embryos to prolonged anoxia

From: CurtAdams@aol.com
Date: Wed May 17 2000 - 22:06:05 MDT


In a message dated 5/17/00 8:17:17 PM Pacific Daylight Time, oberon@vcn.bc.ca
writes:

> The Journal of Experimental Zoology 270: 332-334 1994
> James S. Clegg
>
> Abstract: Encysted embryos of the crustacean Artemia franciscana are
shown to
> survive at least 2 years of continous anoxia, a record unequaled by any
other
> free-living animal. This result, in conjunction with previous findings,
supports
> the possibility that these embryos are an exception to the generality that
a
> constant flow of free energy is required for eukaryotic cell survival,
under
> ordinary conditions of temperature and water content.

I don't have a ref handy, but Branchinecta "eggs" survive by
glycolysis, so although they shouldn't need oxygen, they need
a constant flow of energy from the sugars stored in the cell.
I don't know the basal [original] condition for the group but
some *have* to survive anoxia, so they have no choice but to
do things this way.



This archive was generated by hypermail 2b29 : Thu Jul 27 2000 - 14:11:21 MDT