Definition of Plant
Stephen M Jankalski
CEREOID at prodigy.net
Fri Oct 8 18:01:53 EST 1999
In the evolutionary sense, rhodophyta ARE chloroplasts. There is no
messiness because they are the progenitors of the organelles themselves.
Modern eukaryotes arose from a symbiotic relationship between prokaryotes
and some long extinct ancestor. The organelles mitochondria and the
plastids have their own separate DNA.
Ross Koning <koning at ECSUC.CTSTATEU.EDU> wrote in article
> At 7:16 AM -0500 10/8/99, Stephen M Jankalski wrote:
> >In other words, they have chloroplasts!
> >Jon Greenberg <jongreen at BLUEMARBLE.NET> wrote in article
> ><37FD5C60.87324DA at bluemarble.net>...
> >> At BSCS, we have been following Lynn Margulis' book Five Kingdoms,
> >> defines plants as multicellular photoautotrophs that develop from
> >> embryos.
> But there are organisms...Rhodophyta...for
> example...which DO have chloroplasts, but
> which are probably NOT Plantae. This is where
> some of the "messiness" of "plants" arises.
> Ross Koning | koning at ecsu.ctstateu.edu
> Biology Department | http://koning.ecsu.ctstateu.edu/
> Eastern CT State University | phone: 860-465-5327
> Willimantic, CT 06226 USA | fax: 860-465-4479
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