Comparative genomics of the core and accessory genomes of 48 Sinorhizobiumstrains comprising five genospecies

Table 2 Symbiotic phenotypes of Medicago plants inoculated with virB mutants of S. meliloti KH46c and S. medicae M2

Host plant	Inoculated strain	Nodule number^a	Nodule dry mass (mg)	Plant dry mass (mg)	Plant height (cm)	Chlorophyll content (SPAD unit)
M. truncatula	KH46c wild-type	79	6.6	208	12.2	44
A17	KH46c ΔvirB₆-₉	38*	4.3*	145*	9.5*	43
	M2 wild-type	102	8.4	229	11.0	41
	M2 ΔvirB₆-₉	51	6.2*	202	11.2	44
	Uninoculated control	0	0	37	3.3	17
M. truncatula	KH46c wild-type	35	6.1	174	10.3	42
F83005-5	KH46c ΔvirB₆-₉	24	5.5	158	9.8	39
	M2 wild-type	29	4.9	156	9.5	43
	M2 ΔvirB₆-₉	22	6.7*	243*	10.7*	41
	Uninoculated control	0	0	44	3.3	16
M. tricycla	KH46c wild-type	24	12.2	315	10.5	36
R108-C3	KH46c ΔvirB₆-₉	12*	9.9	230	10.3	34
	M2 wild-type	11	2.8	33	4.2	19
	M2 ΔvirB₆-₉	12	3.1	33	4.2	21
	Uninoculated control	0	0	26	3.5	16
M. satvia cv	KH46c wild-type	56	1.6	95	8.5	54
Agate	KH46c ΔvirB₆-₉	42	6.8*	55	7.2	45*
	M2 wild-type	31	2.5	69	13.7	31
	M2 ΔvirB₆-₉	28	2.5	85	14.6	28*
	Uninoculated control	0	0	79	12.5	21

^aValues are per plant. The asterisk indicates a significant difference compared with the wild-type strain by t-test (P < 0.05) of three biological replicates.

ISSN: 1474-760X