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. 2014 Feb 16;6:53. doi: 10.3389/fpls.2015.00053

FIGURE 3.

FIGURE 3

Histological observation of cell structures and phloem in cross-sectioned SAM of ‘Border Dark Red’ and ‘Yellow Empire’. (A) An overview of the cross-section of the AD in the meristem and the young leaf primordia (LP; 1, 2, 3, 4, 5 and n) of ‘Border Dark Red’. (B–G) High magnification of the LPs in (A) (AD and LP1, 2, 3, 4, 5, respectively). (H–M) High magnification of the LPs of ‘Yellow Empire’ shoot tip cross-section (AD and LP1, 2, 3, 4, 5, respectively). Prophl, prophloem; Proxy, proxylem. Red arrows indicate densely stained nucleolus. Black arrows indicate cell walls. Scale bar in (A) is 100 μm; (B–M) are 10 μm.