Table 3.

Estimates via each net flux mode as fraction of gross carbon fixation in Scenarios A and B.

Net flux mode	Fraction of gross C fixation
	Scenario A			Scenario B
	Opt	Lower	Upper	Opt	Lowest	Largest
Starch synthesis	0.18	0.09	0.27	0.19	0.11	0.35
Sucrose synthesis	0.53	0.42	0.62	0.54	0.36	0.63
Photorespiration	0.30	0.24	0.36	0.27	0.21	0.33
Trehalose synthesis	0.000044	0.000021	0.000070	0.000041	0.000020	0.000069

The flux of photorespiration refers to released carbon atoms. The optimal fit is indicated by opt, and the error of the fit indicates the variance-weighted sum of squares VWSS_t for Scenario A and VWSS_all for Scenario B (see Materials and Methods). The lower and upper confidence limits (95%) were obtained by Monte-Carlo simulation, indicated in the column titled lower and upper. The plastidic and cytosolic pools of a compartmentalized metabolite are indicated by pl and cyt.