Infared Light--Does it grow plants?
ez043438 at dilbert.ucdavis.edu
Tue Apr 7 02:00:13 EST 1998
Ross Koning (koning at ECSUC.CTSTATEU.EDU) wrote:
: The Krebs Cycle does not respond to light...neither
: does the Calvin Cycle. The light reactions, which
We really must stop calling them the light reactions since that implies
that the Calvin cycle contains the dark reactions. The Calvin cycle may
not run electron transport directly by harvesting photonic energy, but it
is certainly activated by light. One way is by activase, which requires
magnesium (and ATP) to activate Rubisco, and that magnesium comes from the
thylakoid lumen (in light conditions only) and the ATP comes from the
photosynthetic electron transport chain. It's not just that you can give
the Calvin cycle enzymes ATP and NADPH2 and have it work in the dark.
Jeffrey A. Kirby jakirby at ucdavis.edu
More information about the Plantbio