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. 2021 Apr 8;186(3):1616–1631. doi: 10.1093/plphys/kiab150

Figure 5.

Figure 5

Leaf spatial distribution of elements. A, Quantified spatial distributions of sodium (Na) magnesium (Mg), phosphorus (P), sulphur (S), potassium (K), and calcium (Ca) in representative first or second leaves of R-o-18, BraA.SGN3.a-WT (SGN3.a-WT) and braA.sgn3.a-1 (sgn3.a-1) as analyzed by micro-particle induced X-ray emission (µPIXE). Scale bar = 200 µm. B, Quantified spatial distributions of Na, Mg, and P in upper epidermal and mesophyll cells of R-o-18, SGN3.a-WT and sgn3.a-1 as analyzed by X-ray fluorescence. Scale bar = 20 µm. X-ray images in top panels digitally colored to show localization of upper epidermis and mesophyll.