Figure 6.

A17 Mock-Inoculated Plants Mobilize More N to Shoots Than sunn-1.

(A) Root and shoot fresh weight is larger in N-replete conditions but even more so when plants are rhizobia inoculated. This is not a rhizobia-alone effect as fresh weight is the same between mock- and rhizobia-inoculated conditions in N-deplete levels.

(B) Free NO₃⁻ content is higher in N-replete than N-deplete conditions and higher in the shoots of rhizobia-inoculated plants; free NO₃⁻ is similar in the roots of mock- and rhizobia-inoculated plants.

(C) Total N content is higher in N-replete than N-deplete conditions but is similar in mock- and rhizobia-inoculated plants.

Data in (A) and (B) are presented as mean ± SD. Letters denote statistically different values: a–b, P < 0.05; a–c, P < 0.01.

See also Supplemental Table 8.