TABLE 2.
C and N elemental and 13C isotopic ratio analysis of L. japonicus plant parts inoculated with M. loti strain R7A or R7A CAA1::pFUS2a
| Measured parameter | Nodules
|
Top plant
|
||
|---|---|---|---|---|
| R7A | R7A CAA1::pFUS2 | R7A | R7A CAA1::pFUS2 | |
| Total C content (%) | 38.77 ± 3.06A | 44.41 ± 0.96A | 44.63 ± 0.56A | 44.57 ± 0.74A |
| Total N content (%) | 7.50 ± 0.50A | 9.44 ± 0.34B | 5.38 ± 0.10A | 5.04 ± 0.17A |
| C/N ratio | 5.16 ± 0.11B | 4.77 ± 0.13A | 8.31 ± 0.15A | 8.87 ± 0.22A |
| δ13C abundance (%) | −38.50 ± 0.18A | −37.88 ± 0.13B | −38.74 ± 0.12A | −38.61 ± 0.21A |
a
Measurements were done at 28 days p.i. The values are means of six replications (three plants each) ± standard errors. The statistical analysis refers to comparisons between the two strains only within the same plant part. Different letters indicate statistical differences at a 95% level of significance.