C3-plant and C4-plant

Cereoid* cereoid at prodigy.net
Sun Jul 29 05:38:16 EST 2001


Pure speculation.

Its worthless without one being able to refer back to the actual experiment
itself, if it really existed, or being able to duplicate it.

We still do not know where was it published or which species were used.


dave <florian.knorr at web.de> wrote in message
news:9jv25p$s1d$07$1 at news.t-online.com...
> Thanks
>
> "Moll McCarty" <mollymc at wi.rr.com> schrieb im Newsbeitrag
> news:H0m87.1330$ul5.152433 at typhoon.kc.rr.com...
> > The CO2 available for photosynthesis outside of a sealed environment, in
> > most situations where any plant grows, is unlimited. The CO2 available
in
> > this sealed environment is limited to start with. And lessens the more
> that
> > photosynthesis occurs. It is THE limiting factor towards growth in this
> > situation.  Apply that thought to the specifics of C3 & C4 metabolism.
> > I'm trying to, but it's getting a bit muddled after this.
> > The extra heat of a sealed environment may play into this, too. Higher
the
> > heat, the faster the chemical reactions. C3s are slow but sure, C4s are
> > faster in heat, hence, our weeds come up first, then the flowers.
> > Extra heat will also open the breathing pores of the leaves. These
stomata
> > are busy respirating, giving off O2, and NOT gathering in CO2. No CO2,
no
> > photosynthesis because no carbon.
> > Yours in progress,
> > Moll
> > > > dave <florian.knorr at web.de> wrote in message
> > > > news:9jsad8$dvi$06$1 at news.t-online.com...
> > > > > Hi!
> > > > >
> > > > > I´ve recently heard of following experiment:
> > > > > If you cultivat a C3-plant and a C4-plant together in an airtight
> > glassy
> > > > > container, the C3-plant will die after a short period of time.
> > > > > Could anybody explain to me for what reason / reasons the C3-plant
> > will
> > > > die.
> > > > >
> > > > > Thanks in advance!
>
>





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