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Fig. 2.

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Fig. 2. Histochemical lignin (phloroglucinol-HCl) staining of shoot cross-sections from 8-week-old N. tabacum plantlets with Wiener (bar: 2 mm). Lignin is stained red. Abbreviations: co, cortex; pi, pith; x, xylem. Magnification, ⅹ300. (A) T1 (Control, BFM); (B) T2 (BFM without NH4+); (C) T3 (BFM without NO3-); (D) T4 (BFM without H2PO4-); (E) T5 (BFM without K+); (F) T6 (BFM without Ca2+); (G) T7 (BFM without Mg2+); and (H) T8 (BFM without Fe3+).
J Plant Biotechnol 2021;48:278-88 https://doi.org/10.5010/JPB.2021.48.4.278
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