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. 2019 Mar 21;14(3):e0213874. doi: 10.1371/journal.pone.0213874

Fig 9. Graphical abstract.

Fig 9

The solid and dashed lines denote the pathways of inorganic N metabolism in the citrus cultivar ‘Huangguogan,’ and the red upward arrow indicates that the relevant indicators were upregulated under adequate N supply.