Table 1. Photosynthetic parameters of Scenedesmus obliquus in the four experimental treatments with different carbon source in the presence of dcps for 5 h. F_v/F_m: photosynthetic efficiency (STDEV: 0.001–0.012), ABS/RC: antenna size (STDEV: 0.5–1.5), DIo/RC: dissipation energy per reaction center (STDEV: 0.5–1.1), RC/CS_o: density of active reactions centers (STDEV: 1.5–5).

[limit C]					[CO2]
	Fv/Fm	ABS/RC	DIo/RC	RC/CSo		Fv/Fm	ABS/RC	DIo/RC	RC/CSo
control	0.654	2.269	0.815	24.679	control	0.669	1.976	0.679	28.843
2,3-dcp	0.636	2.575	1.004	17.863	2,3-dcp	0.671	2.876	1.048	17.732
2,4-dcp	0.648	3.073	1.147	17.250	2,4-dcp	0.638	2.756	1.042	17.414
2,5-dcp	0.579	3.057	1.343	15.373	2,5-dcp	0.594	3.047	1.297	14.112
2,6-dcp	0.609	1.862	0.742	28.464	2,6-dcp	0.560	3.165	1.481	16.114
3,4-dcp	0.495	3.757	2.064	16.239	3,4-dcp	0.605	2.633	1.061	19.751
3,5-dcp	0.504	1.991	1.039	30.135	3,5-dcp	0.510	3.403	1.767	15.866
[glc]					[CO2+glc]
	Fv/Fm	ABS/RC	DIo/RC	RC/CSo		Fv/Fm	ABS/RC	DIo/RC	RC/CSo
control	0.664	1.932	0.675	26.394	control	0.652	1.616	0.584	34.650
2,3-dcp	0.618	3.173	1.327	14.498	2,3-dcp	0.664	2.148	0.773	20.946
2,4-dcp	0.589	2.333	1.000	20.574	2,4-dcp	0.640	2.848	1.048	16.153
2,5-dcp	0.548	3.115	1.468	15.732	2,5-dcp	0.564	2.160	0.984	21.297
2,6-dcp	0.595	2.008	0.866	24.898	2,6-dcp	0.609	2.376	0.947	23.152
3,4-dcp	0.505	3.157	1.657	16.790	3,4-dcp	0.590	2.674	1.150	16.084
3,5-dcp	0.451	3.302	1.778	14.840	3,5-dcp	0.486	2.797	1.464	20.020