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7 蓖麻种子维管束分布示意图 A: 与子叶面垂直的正中纵切面, 示内、外种皮维管束的关系及来源于胚轴的子叶主脉维管束; B: 与子叶面平行的正中纵切面, 示内种皮维管束和子叶维管束空间上的分离; C: 与种子长轴垂直的正中横切面, 示外种皮、内种皮和子叶维管束的空间关系; D: 种阜中部局部横切面, 示种阜维管束。VC: 子叶主脉维管束; HB: 胚轴维管束; AC: 气室; BV: 子叶分枝维管束; BC: 种阜维管束。

Fig. 7 Diagram showing the distribution of vascular bundles in R. communis seed A: median longitudinal section perpendicular to the plane of cotyledon, showing the relationship between vascular bundles of endosperm and episperm and main vascular bundles of cotyledons originating from hypocotyle; B: median longitudinal section parallel to the plane of cotyledon, showing spatial separation of vascular bundles in endopleura and cotyledon; C: median transverse section perpendicular to the long axis of seed, showing spatial relationship of vascular bundles in episperm, endopleura and cotyledon; D: local transverse section of middle part of caruncle, showing bundles in caruncle. VC: the vascular bundles in the main vein of cotyledons; HB: hypocotyle bundles; AC: air chamber; BV: branched vascular bundles in cotyledons; BC: bundles in the caruncle.