How do plants know they are dead?

Lowell Zelinski lowell at cybergate.com
Thu Jul 13 10:53:14 EST 1995


In article <mbzcaj.145.000D2E9A at unicorn.ccc.nottingham.ac.uk>,
mbzcaj at unicorn.ccc.nottingham.ac.uk (Chris Jones) wrote:

> Hello,
>           Just an odd query. When can you say that a plant is dead and
at what 
> point does a plant realise? 

Does a plant "realize" thats its alive ??

What I am getting at is that I am interested in 
> getting mRNA from plant tissue and when you use animal tissue as soon as the 
> animal or tissue is "dead" the mRNA begins to decay so you plunge the
material 
> into lq N2 asap. Do I need to do that with plants (developing seeds
actually)? 
> or am I OK untill a critical level of water/sugars etc.etc is reached. 
> Anything which would prevent me having to lug a tank of lqN2 into a field!
> 
> Many Thanks....
> 
> Chris Jones



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