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This is a somewhat remarkable discovery.  Bacteria undergo programmed cell death in the presence of bacteria phage, not always death by phage.  This suggests a very early origin for cellular mechanisms that shape and protect multicellular organisms such as us.  And who would have thunk of bacterial based altruism!
http://www.the-scientist.com/?articles.view/articleNo/34784/title/The-Upside-of-Suicide/ 

Many years ago in creating the Traits of Life exhibition we included "Death by Design" and it rings more true than ever.

C
Charles Carlson
Senior Scientist | Teacher Institute

http://blogs.exploratorium.edu/whyintercept/
Twitter: @charliec53
email: [log in to unmask] 
Tel:   415-528-4319
Fax:  415-885-6011
exploratorium.edu
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The Embarcadero, Piers15 & 17
S.F., CA 94111





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