Table 1. Effect of BASF experimental compounds on phytoene accumulation in the presence of 200 µM norflurazon.

MEP target site		BASF	Inhibitionb
		#a	(%)
DXS
1-Deoxyxylulose-5-phosphate synthase
	3		11.1	BC
	4		15.6	BC
	5		27.2	CD
	6		44.4	DE
DXR
1-Deoxyxylulose-5-phosphate reductoisomerase
	7		(117.7)c	A
	8		40.3	DE
IspD
2C–Methyl-d-erythritol 4-phosphate cytidyltransferase
	9		20.6	BCD
	10		26.0	CD
	11		63.6	E
	12		61.3	E
IspE
4-Diphosphocytidyl-2C-methyl-d-erythritol kinase
	13		28.8	CD

Inhibition of phytoene accumulation by compound treatment was expressed in percentage of inhibition related to maximum accumulation in control assays. All compounds were tested at 100 µM.

^aNumbering corresponds to structures in Witschel et al. (2013) [41].

^bMeans values followed by the same letter do not differ significantly at the 5% level by Duncan’s multiple range test.

^cCaused greater phytoene accumulation.