Plant Gene and Trait 2025, Vol.16, No.5, 206-214 http://genbreedpublisher.com/index.php/pgt 207 2 Biological and Economic Basis of P. edulis 2.1 Growth characteristics and ecological adaptability Phyllostachys edulis is famous for its fast growth and strong adaptability. Studies show that its maximum daily growth rate can reach 114.5 cm, which is much higher than that of most plants. The growth of Phyllostachys edulis can be divided into three stages: cell division, cell elongation and secondary wall thickening. This process is regulated by multiple hormones, such as gibberellin, cytokinin, abscisic acid and auxin, and is also easily affected by temperature and mechanical pressure (Figure 1) (Zhang et al., 2018; Lan et al., 2020; Chen et al., 2022). Figure 1 Sectionalized growth in internode 18 of P. edulis (Adopted from Chen et al., 2022) Image caption: A-C, Parenchyma cell morphology (A), number of nuclei (B), and cell length (C) of the first (3i-1), second (3i-2), and third (3i-3) segments of the 3-cm-long 18th internode and the first (6i-1), second (6i-2), third (6i-3), fourth (6i-4), fifth (6i-5), and sixth (6i-6) segments of the 6-cm-long 18th internode. Parenchyma cells in (A) are indicated by enclosed lines, and arrows indicate mitotic figures. Scale bar = 50 µm. Data shown in (B) and (C) are means ± sd (n ≥ 180 for cell length; n ≥ 6 for nucleus density). The different letters (lowercase) in each column indicate significant differences at P < 0.05. D, Flow cytometry analyses showing nucleus status of parenchyma cells in each of the 1-cm-long sections of the 3- and 6-cm-long 18th internodes. G1, G2, S, and M in the flow cytometry channels represent Gap1, Gap2, synthesis, and mitosis stages of mitotic cell division (Adopted from Chen et al., 2022)
RkJQdWJsaXNoZXIy MjQ4ODYzNA==