【摘要】 从‘桂味’荔枝果实的纵剖面上观察到,在珠柄上珠孔反对面一侧,于花后约一周出现假种皮原基,而在珠孔侧则于花后约一个月才出现假种皮。本研究结果与Banerji and Chaudhuri(1944)关于荔枝珠孔侧的假种皮系由珠孔塞直接分化形成的报道不同。在珠孔侧,假种皮系发生于珠柄上珠孔塞上方的部位,而珠孔塞本身随后解体消失。从解剖学和生理学的观点看来,荔枝果实的个体发育不宜划分为三个阶段(Joubert,1970),而应当划分为:(1)种皮和果皮生长;(2)子叶和假种皮生长,两个阶段。更多还原

【Abstract】 The aril in the fruit of litchi (Litchi chinensis Sonn. cv. ’Gui Wei’) initiates fromthe funicle about one week after anthesis on the side opposite to the micropyle. However, it appeares as late as about one month after anthesis on the micropylar side. Being atvariance with the suggestion made by Banerji and Chaudhuri (1944) that aril develops directly "from the tissue of the obturator", our observations have revealed that, on the micropylar side, the aril develops from the funicle at a site just above the obturator. The obturator itself gradually breaks down and finally disappears.It is reasonable from the point of view of anatomy and physiology to divide the ontogeny of litchi fruit into 2 stages i.e. (I) The growth of seedcoat and pericarp, and (II)The growth of cotyledons and aril, with which maturation proceeds concomitantly.更多还原