Table 1.

Iron speciation (%) in wild type (WT) and nas2-1 nodules. n.d., not detected.

Region	WT				nas2-1
	Fe(II)-S	Fe(II)-O/N	Fe(III)-O	R2	Fe(II)-S	Fe(II)-O/N	Fe(III)-O	R2
ZII	4	12	83	00004	n.d.	14	86	0.0008
IZ	13	19	69	0.0004	5	17	78	0.0006
ZIII	50	24	27	0.001	14	49	37	0.0005
Vessels	n.d.	22	79	0.0008	n.d.	22	78	0.001