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Basal cross-sections of primary inflorescence stained with phloroglucinol-HCl of bor1-3 (A,C and D) and wild type (B). Phloem sclereids are encircled in A. ph: phloem, xy: xylem, Sxy: secondary xylem, Rxy: regenerative xylem, if: interfascicular fibers.
