Furthermore, we found
transcript level changes consistent with an early release of flowering repression in the long-day condition.
Differences in protein levels between long and short photoperiods mainly reflect an adjustment to
the faster growth in long photoperiods. In summary, the observed differences in the molecular profiles of
leaf six grown in long- and short-day photoperiods reveal changes in the regulation of metabolism that
allow plants to adjust their metabolism to the available light. The data also suggest that energy management
is in the two photoperiods fundamentally different as a consequence of photoperiod-dependent
energy constraints.