植物维管形成层发育及其调控的研究进展

葛颜锐, 赵冉, 徐静, 李若凡, 胡云涛, 李瑞丽

Advances in the Development and Regulation of Vascular Cambium

GE Yan-rui, ZHAO Ran, XU Jing, LI Ruo-fan, HU Yun-tao, LI Rui-li

表2 参与维管形成层调控的转录因子

Table 2 Transcription factors involved in vascular cambium regulation

名称 Name 表达部位 Location 靶基因 Target gene 功能 Function 参考文献 Reference MP/ARF5 原形成层 Procambia WOX4 促进木质部分化 Promote xylem differentiation [15] TMO5 控制维管组织的确定，促进原形成层周壁细胞分裂 Control the determination of vascular tissue, and promote the division of periparietal cells in the procambium [26⇓-28] TMO5-LHW 初生木质部 Primary xylem LOG3/4 控制维管组织的确定，促进原形成层周壁细胞分裂 Control the determination of vascular tissue, and promote the division of periparietal cells in the procambium [29] DOF2.1 促进原形成层细胞分裂 Promote the division of the protocambial cells [30] WOX4/14 原形成层、维管形成层 Procambia and vascular cambium TMO6 促进形成层增殖，参与维管束形状的确定 Promote cambium proliferation, and participate in the determination of vascular bundle shape [59-60] LBD4 TMO6 维管形成层 Vascular cambium LBD4 SOC1 顶端分生组织、原形成层 Apical meristem and procambia AHL15 促进开花，影响分生组织的确定性，抑制次生生长 Promote flowering, affect the certainty of meristem, and inhibit secondary growth [62-63] FUL AHL15 维管形成层 Vascular cambium IPT3/7、LOG5 抑制腋芽分生组织成熟，延长寿命，促进形成层活性，促进次生木质部的发育 Inhibit the maturation of axillary bud meristem, prolong the life span, promote the activity of cambium, and promote the development of secondary xylem [64] XVP 维管形成层 Vascular cambium CLE44 促进木质部分化，维持维管稳定 Promote xylem differentiation, and maintain vascular stability [65-66] EPFL4/6 内皮层 Endodermis ER/ERL1 促进原形成层发育 Promote the development of procambium [68⇓-70] GRF 维管形成层、短暂扩充细胞 Vascular cambium、transient amplifying cell PLT 促进生长 Promote growing [71]