Cambrian Explosion: bacillus subtilis (Introduction)

by David Turell , Sunday, September 29, 2013, 16:24 (4052 days ago) @ dhw

DAVID: Bluntly cells do not exchange information, only chemical reactions.-From bbella:-> http://www.sysbio.org/resources/tutorials/2003series/biolecture5.pdf-
... been unfair to dhw, because I have ignored up until now his constant reference to communication in a b.subtilis study about sporulation, which is about equivalent to why leaves turn colors in the Fall as anything else I can think of. b. subtilis is a famous character in bology studiees. I know it well.-> dhw:	The Evolution of Cell-to-Cell Communication in ...www.scoop.it/t/social-foraging/p/3867153222/the-evolution-of-cell...
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> dhw: From www.ploscompbiol.org - December 27, 2012 2:53 AM 
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> "Traditionally microorganisms were considered to be autonomous organisms that could be studied in isolation. However, over the last decades cell-to-cell communication has been found to be ubiquitous. By secreting molecular signals in the extracellular environment microorganisms can indirectly assess the cell density and respond in accordance. (my bold)-
There is certainly an exchange of information. My bolding shows it is biochemical reactions. b bella's lecture supports me, not dhw. 'nuff said.