蓖麻种子结构的解剖和显微观察

郭学民,赵晓曼,徐珂,王芯蕊,张辰瑜,东方阳

Anatomy and microscopic observation of Ricinus communis seed structure

Xue-Min GUO,Xiao-Man ZHAO,Ke XU,Xin-Rui WANG,Chen-Yu ZHANG,Yang DONG-FANG

图3 蓖麻内种皮维管束分布 A: 部分游离的内种皮, 示被染成红色的、代表维管束的木质部和维管束的分枝格局; B: 图A中方框a的放大图, 示与外种皮腹侧种脊大型维管束相连的维管束索, 分枝为3个较大的维管束; C: 图A中方框b的放大图, 示管胞末端侧壁相连(箭头); D: 图A中方框c的放大图, 示维管束分枝的格局; E: 图A中方框d的放大图, 示内种皮维管束末端的螺纹管胞(箭头)。BB: 维管束索。

Fig. 3 Distribution of endopleura vascular bundles of R. communis A: partial free endopleura, showing the reddish xylems representing vascular bundles and branching pattern of vascular bundles; B: detailed view of box a in figure A, showing that the vascular bundle band, connecting with large vascular bundle in the raphe from episperm at the ventral surface of a seed, branched into three larger vascular bundles; C: detailed view of box b in figure A, showing terminal side wall junction (arrow) of the tracheids; D: detailed view of box c in figure A, showing the pattern of branching of vascular bundles; E: detailed view of box d in figure A, showing the helical tracheid (arrow) at the end of vascular bundle of endopleura. BB: bundle band.