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Author Topic:   Is the eukaryotic cell a colony?
straightree
Member (Idle past 4837 days)
Posts: 57
From: Near Olot, Spain
Joined: 09-26-2008


Message 16 of 17 (504924)
04-05-2009 5:48 AM
Reply to: Message 6 by Dr Jack
03-25-2009 10:49 AM


colony/endosymbiosis
I am not a biologist, but have an interest in botanic. I am familiar with the evolutive process undergone by algae, that progressed from unicellular to multicellular organization via colony association. I know only superficially the endosymbiosis theory, but it seems to me a different process that colony. Basically colony seems to be an association, wears endosymbiosis seems to imply fagocitosys. Or may both processes be considered similar? What is your opinion?

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 Message 6 by Dr Jack, posted 03-25-2009 10:49 AM Dr Jack has replied

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Dr Jack
Member
Posts: 3514
From: Immigrant in the land of Deutsch
Joined: 07-14-2003


Message 17 of 17 (505181)
04-08-2009 2:06 PM
Reply to: Message 16 by straightree
04-05-2009 5:48 AM


Re: colony/endosymbiosis
I'm only an aspiring biologist, myself.
Endosymbiosis doesn't necessarily imply phagocytosis - it could develop from parasitism, for example. As I understand Margulis's original idea it was suggested that the original cilia cells would have lived as external symbionts in a colonial arrangement and then, over time, become more closely joined until they formed the arrangement we see today.
I don't think Dawkins meant the term 'colony' to be taken in any technical manner but simple as a group living together.

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