Do Stomata Respond to CO2 Concentrations Other than Intercellular?

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Biollante

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Hi,

I will pm this as well. This may be regarded as me being a wise-guy, no offence intended.
:)
Always check the footnotes, in the case (2) “abbreviations at the bottom of page 1, listed as page 200.
:eek:

  • C[SUB]a[/SUB] is the ambient CO[SUB]2[/SUB] concentration.
  • C[SUB]i[/SUB] is the intercellular space CO[SUB]2[/SUB] concentration.
  • C[SUB]s[/SUB] is the CO[SUB]2[/SUB] concentration at the surface of the leaf.
  • C[SUB]p[/SUB] is the CO[SUB]2[/SUB] concentration at the stomata pore.

Biollante
 
Tom Barr

Tom Barr

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All plant CO2 is taken in as aqueous CO2[aq], same for us for that matter and pretty much all life.
So while it transfers very fast in gas form.............it still needs to go from gas to liquid [aq], our lungs do this and plant stomata and CO2 concentrating mechanisms do this. Like Fish gills and O2, the affinity for CO2 by aquatic plants and the surface to biomass ratio is extremely high.
http://www.plantphysiol.org/content/58/6/761.full.pdf

It may interest you to know that many aquatic plant stomata are non functional.

This paper is interesting because it's a paradigm shift in research away from nutrients and back to CO2.
Crisman at IFAS at UF also has some neat comments about CO2 super saturation in lakes.

Neat paper that drives home some of my thinking on the matter:

http://www.sciencedirect.com/science/article/pii/S0048969709003556


This is an excellent review paper and recent:

http://www.springerlink.com/content/g2k56p2083gr8057/fulltext.pdf
 
P

pejerrey

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Dec 8, 2011
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Thank you, I'll read that.

I'm fascinated by the use of carbon as building block of life and I believe life could use a different block perhaps somewhere else in the universe.

---

In a dinner conversation with some friends about books, my wife told them, " oh, he doesn't read"... I said:

"well, I read about reality and every square inch is infinitely rich of interesting topics, i like to understand what is around us...I just can't conceive spare time to read about fantasy."

And then they called me NERD. Lol! :)
 
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