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. 2018 Nov 20;9:1686. doi: 10.3389/fpls.2018.01686

FIGURE 4.

FIGURE 4

Cytochrome oxidase activity in M. loti MAFF303099 wild-type, mutant, and complemented mutant strains. Disks impregnated with N,N-dimethyl-p-phenylenediamine (oxalate) were added to 60 μl of wild-type (wt), tatC, mll2707, mlr0970, and mll2707/mlr0970 mutant strains, tatC mutant strain complemented with tatC gene cloned in pBBR1MCS-2 (tatC strain plus tatC), and mll2707 mutant strain complemented with mll2707 gene in pBBR1MCS-4 (mll2707 strain plus mll2707) (in this case the mll2707-3XFLAG construction was used for complementation). Development of a pink coloration was evaluated within 1 min.