C3-plant and C4-plant
mollymc at wi.rr.com
Fri Jul 27 17:35:19 EST 2001
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,
"dave" <florian.knorr at web.de> wrote in message
news:9jsf3d$l73$06$1 at news.t-online.com...
> I friend of mine told me of this experiment of few days ago. He wanted to
> know whether I was able to answer - for he didn´t know either.
> "Cereoid*" <cereoid at prodigy.net> schrieb im Newsbeitrag
> news:RJi87.1888$m56.371692764 at newssvr17.news.prodigy.com...
> > Where was this experiment published?
> > Why not ask for an explanation from the person who told you this.
> > Would be interested in hearing why.
> > 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
> > > container, the C3-plant will die after a short period of time.
> > > Could anybody explain to me for what reason / reasons the C3-plant
> > die.
> > >
> > > Thanks in advance!
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