Studies on the ontogeny of hedyotis diffusa willd 白花蛇舌草的生育规律研究
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The ontogeny and phylogenesis of vessel elements in litchi chinensis . are also discussed 分别对其进行了描述，并从导管分子个体发育与系统发育的角度进行了讨论。
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Mouse homeobox gene pem was newly isolated in 1990 ' s . its expression pattern during the murine ontogeny and in the adult tissues is unique , namely , in a stage and spatial specific manner Pem基因在小鼠发育过程及成体部分组织中呈时间和空间特异性表达，并在一系列肿瘤细胞株中持续表达。
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Ontogeny three types of female cones of ephedra are recognized according to the number of seeds per cone , namely uni - ovulate cone , bi - ovulate cone , and tri - ovulate cone . it is suggested that terminal bud of primary cone axe is developed in tri - ovulate cone and disappears in bi - ovulate cone 这三种类型也代表了麻黄属球花演化的三个阶段，三胚珠球花代表麻黄属雌球花的原始式样，而单胚珠雌球花则为麻黄属雌球花最为特化的式样。
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The trend is refered to combine the evidence from several genes representing both nuclear and organella genomes with morphology , ontogeny and life history for systematic studies ; while studies at the population level by applying molecular techniques with high differenciation lead an important direction 指出同时应用能够代表核和细胞器基因组的多个基因结合形态、个体发育和生活史进行系统学分析是其必然发展趋势；而应用高分辨率的分子手段进行居群研究是一个重要的发展方向。
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So far few studies have examined the ontogeny of the overall synaptic responses in rat hippocampal ca1 neurons during postnatal development a systematical study of the evoked synaptic responses during development is useful for understanding the developmental integration of neural signals on the ca1 pyramidal neurons 到目前为止，还未见对发育过程中大鼠海马ca1锥体神经元总突触反应的生后发育进行研究的报道，因此对发育过程中诱发的突触反应进行系统的研究有利于阐明ca1锥体神经元对神经信号的发育整合。
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In this paper the floral ontogeny and the ovary development of rivina humilis l . were observed . the results showed that ( 1 ) the tepal primordia initiated in 2 / 5 spirals . the abaxial one initiated first , then the adaxial one , finally the lateral two initiated nearly simultaneously . the third one initiated on the position near the first tepal , and there is a gap between itself and the second tepal . ( 2 ) the 4 stamineal primordia initiated in one whorl at the same time . ( 3 ) the carpellary primordium initiated from the abaxial side of flower primordium ; the carpellary primordium grew upwards and towards axis after it was formed , therefore an elliptic orifice was formed at the adaxial position of ovary , which was the remainder of the mouth of ovary before the ovary was fused completely . with the ovary maturing , the orifice was narrowed because of the ovary growth , at last fused completely . the gynoecium is composed of a single carpel . ( 4 ) in the series developmental sections of ovary , the ovular primordium was initiated on the adaxial meristem when the mouth of ovary was formed 对数珠珊瑚的花器官发生和子房的发育过程进行了观察.结果表明: ( 1 )数珠珊瑚花被呈2 / 5螺旋状发生,远轴侧的1枚先发生,其次为近轴侧的1枚发生,最后侧方的2枚花被几乎同时发生,第3枚花被在靠近第1枚的位置发生,第2枚和第3枚之间有1个空隙; ( 2 ) 4枚雄蕊是同时发生的; ( 3 )心皮发生于分生组织的远轴侧,心皮原基形成后,向上向轴生长,在子房成熟前在近轴侧非正中位形成1个孔,该孔为心皮最终愈合前的残迹,到子房成熟时,因子房的生长孔被挤压缩小,在进一步的生长过程中愈合.子房由1枚心皮构成; ( 4 )从子房发育过程的切片看,该植物的胚珠是在子房发生后不久发生的,子房上的圆孔形成时,从近轴侧的分生组织发生胚珠原基,由胚珠原基分化出珠被与珠心
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In order to investigate the ontogeny of the pituitary prolactin ( prl ) expression of sheep fetuses during gestation , the pituitary glands were collected at days 60 , 90 , 120 of gestation , the first day after birth , respectively . the cells containing the prolactin ( prl ) were detected using immunohis ' ochemistry method 为了研究绵羊胎儿垂体中催乳素细胞( lactotrophs )的发育和功能变化，分别在胎儿发育的第60 、 90 、 120天和出生期采集垂体，利用免疫组织化学方法研究了垂体中催乳素( prolactin ， prl )的表达及其变化。
