1·In the region of cotton root tip, PL9L were not detected.
在棉花根尖区域均未检测到PL9L。
2·These proved mucilage could protect root tip from Al injury.
表明铝胁迫时粘胶层具有保护根尖的作用。
3·The number of chromosomes in the root tip cells was observed.
对主栽品种的根尖细胞染色体数进行了观察；
4·Studied on chromosome damage in cells of broad bean root tip.
对照射后蚕豆根尖下细胞中的染色体损伤情况进行了研究。
5·After the infected root tip and infected tissue have been removed.
再把受感染的牙根梢和受感染的组织切除之后。
6·Apicoectomy is the removal of a very small Part of the infected root tip.
齿根尖切除就是要将受到感染的根梢的一个非常小的部分切除掉。
7·Thus, copper acetic acid had systematical teratogenic effects on Vicia faba root tip cells.
因此，乙酸铜对蚕豆根尖细胞具有明显的致畸效应。
8·Methods:Sister chromatid exchange(SCE) was sued in human lymphocytes and plant root tip cells.
方法：蚕豆、大麦和人外周淋巴细胞姐妹染色单体交换（SCE）。
9·The function of root tip is related to transport, unloading and distribution of auxin in roots.
根尖功能与生长素运输、根尖的卸载及根中的分布有密切关系。
10·Methods:Sister-chromatid exchange (SCE) was used in human lymphocytes and plant root tip cells.
方法：人外周血淋巴细胞和植物根尖细胞SCE。
1·The number of chromosomes in the root tip cells was observed.
对主栽品种的根尖细胞染色体数进行了观察；
2·The kinetic pattern of activity of the first cell cycle showed that these cells were not activated synchronously, but re_entered the cell cycle in turn depending on their places in the root tip.
第一个细胞周期的激活样式表明，这些细胞并不同步激活，而是依次进入细胞周期，且进入的次序与自身在根尖中的相对位置有关。
3·Effects on mitosis and chromosomal aberrations of tobacco root tip cells were observed by the method of artificially inducing para-nodule treated with 2, 4-d and rhizobium.
通过人工诱导烟草结瘤的方法，观察给予2,4 - D、根瘤菌后，其对烟草根尖细胞有丝分裂和染色体畸变的影响。
4·With different concentrations of sewage and aluminum sulfate as a mutagen, pea root tip cells in the mitotic index, micro-rate and the rate of chromosomal aberrations are determined.
以不同浓度的污水和硫酸铝作为诱变剂，测定豌豆根尖细胞的有丝分裂指数、微核率和染色体畸变率。
5·It is easy to induce callus derived from hypocotyls and cotyledons, but callus derived from root tip was rather difficult to be done.
愈伤组织的诱导与再分化的研究显示：“种都一号”儿菜下胚轴与子叶愈伤组织诱导较容易，但根尖很难愈伤化。