Anatomical diversity of funicles in Leguminosae
Anatomical diversity of funicles in Leguminosae
复制标题
豆科菌柄的解剖多样性
DOI：
10.1007/s10265-011-0404-3
复制
发表时间：
2012
影响因子：
2.8
通讯作者：
Y.
中科院分区：
文献类型：
--
作者：
Endo;Y.
采用石蜡切片法，对豆科植物59种(隶属于46属、20族、3亚科)进行了系统研究。豆科植物珠柄的维管束被明确为侧枝、两栖或两栖。在索状维管束是贯穿珠柄的侧生维管束的物种中，木质部位于珠柄底部的果皮一侧，而木质部始终位于珠柄顶端韧皮部的珠孔一侧。当种子方向(从珠孔到珠孔)朝向花柱一侧时，珠柄维管束似乎在珠柄的基部和顶端之间扭曲。这种扭曲包括种子(胚珠)在种子(胚珠)发育过程中的旋转。这也可能意味着豆类种子的方向(从种脐到珠孔)最初面向果皮。
To clarify the diversity in funicular internal structures in Leguminosae, 59 legume species (classified into 46 genera, 20 tribes, and 3 subfamilies) were examined by a paraffin-sectioning method. The vascular bundles of legume funicles were clarified as collateral, amphicribral, or amphivasal. In species in which the funicular vascular bundle was collateral throughout the funicle, the xylem is positioned at the pericarpial side in the basal part of the funicle, and the xylem was always positioned at the micropylar side of the phloem in the apical end of the funicles. Whenever the seed direction (from hilum to the micropyle) faces the stylar side, the funicular vascular bundle appears to twist between the basal and the apical part of the funicle. This twist would involve a rotation of the seeds (ovules) during seed (ovule) development. This also may mean that the direction (from hilum to the micropyle) of legume seeds originally faces the pericarp.