马蹄香种子生物学特性研究

马蹄香的雌蕊子房半下位,心皮6枚,蒴果蓇葖状,果实成熟时沿腹缝线开裂。种子呈三角状倒椭圆形,其背面凸出,具明显横皱纹,腹面凹入。马蹄香种子由种皮、胚乳和胚三部分构成。种皮由多层细胞组成;核型胚乳,种子成熟时游离胚乳核形成胚乳细胞,而胚尚未分化,仍停留在原胚阶段。种子发芽试验表明,马蹄香种子萌发率极低,具有种子休眠的生物学特征。对马蹄香种子的化学成分作了分析研究,种子胚乳中富含营养物质,其中粗蛋白含量为17.3(g/100g)。此外,种子含有丰富的镁、锰、钙、铁、锌等矿质元素。

Research of the biological characters on the seeds of Saruma henryi Oliv

Saruma henryi Oliv.is half inferior ovary and the pistil is composed of six carpels. The fruit is follicular capsule and septifragal dehiscence when the fruit is mature. The back of the seed is raised and has evidence horizontal wrinkle while the inside is hollow. The seed is composed of seed coat,endosperm and embryo. The structure of the seed coat is complex and very hard. When the seed is mature,the embryo is not yet completely differentiated and still in the stage of proembryo. The analysis research of chemical composition on the seed of S.henryi Oliv. has been done. It includes 17.3(g/100g)protein and has rich kinds of mineral substance element,such as Mg,Mn,Ca,Fe,Zn and so on.