Figure 3.

Comparison of the histological structures in the tuber bud between camphor inhibition and normal conditions. (A–C) Histological structures in the normal bud: (A) A bud of approximately 0.5 mm; (B) A shoot of approximately 2 mm; (C) A vessel in the vascular tissue (red arrows) and starch grains in cell (black arrows). (D–F) Histological structures in the bud after camphor inhibition: (D) Malformed buds lacking an apical meristem; (E) Necrotic sprouts and cell vacuolization; (F) Vessel breakage in the vascular tissue (red arrows), and loss of starch grains.