Table II. Elemental concentration of the seed coat of Arabidopsis seed from in vivo SXRF microtomography analysis, as defined by ROI analysis.

Values are means ± sd of each user-defined region, expressed as μg cm⁻².

Genotype	K	Ca	Mn	Fe	Zn	Cu
Col-0	99.29± 16.86	70.00± 33.05	0.54± 0.37	1.42± 1.09	1.12± 0.70	0.88± 0.55
cax1-1	205.15± 75.17	137.79± 54.61	0.53± 0.32	1.76± 1.07	1.61± 0.86	0.93± 0.37
cax3-1	301.93± 110.91	129.29± 55.67	1.03± 0.62	1.60± 1.18	1.83± 1.08	1.04± 0.44
cax1cax3	100.79± 37.29	81.98± 36.05	0.48± 0.39	0.72± 0.99	1.08± 0.67	0.61± 0.30
35S-sCAX1	160.49± 73.82	46.00± 22.07	0.34± 0.28	0.45± 0.54	1.19± 0.82	0.34± 1.15