查询词典 root cell

Rice lateral root primordia initiated only from the pericycle cells adjacent to the phloem poles, indicating that initiation of rice lateral root primordia had specific cell type pattern.

3水稻侧根原基起始具有严格的细胞位置效应，只有与韧皮部极直接相邻的中柱鞘细胞才能分化形成侧根原基。

The results showed that POD activity increased at first and then decreased in the skin and flesh of root. The peak occurred at 40 d and 60 d in the skin and flesh, respectively. POD activity in the skin was higher than that in the flesh at 30 d and then contrary results were observed. The higher POD activity was, the more POD isoenzyme was. The pattern of POD isoenzymes was different between skin and flesh at different vegetative growth stages. POD isoenzymes in the skin were composed of five monomers and four dimers while five dimers or two monomers, two dimers and one tetramer in the flesh. POD isoenzymes in the root were mainly acidic. POD localized mainly in the cell walls of periderm, cambium, xylem ray, xylem vessels and primary xylem.

结果显示，心里美萝卜营养生长期肉质根的皮和肉中POD活性均先升高后降低，分别在播种后第40 d和60 d出现峰值，30 d时皮中POD活性高于肉，之后则相反，酶活性最高时同工酶数目也最多，不同时期，皮和肉中同工酶种类不同；皮中POD同工酶由5个单体和4个二聚体组成，而肉中由5个二聚体或2个单体、2个二聚体和1个四聚体组成，均以酸性同工酶为主；组化定位显示POD主要分布在肉质根的周皮、形成层、木射线、木质部导管和肉的初生木质部等的细胞壁附近。

Affected anatomic sites included: submaxillary and submentum (7), maxilla(7), palate(6), salivary gland(5),root of tongue(5), neck(4), cheek(2), gingival(1). All of the cases are NHL, B cell lymphoma 27 (72.97%), T/NK cell lymphoma9 (24.32%), one cases cell origin was uncerten.

发病部位依次为颌下、颏下7例、上颌部7例，腭部6例，腮腺5例，舌根部5例，颈上部4例，颊部2例，牙龈1例。37例全部是NHL，B细胞淋巴瘤27例(72.97％)，T／NK细胞淋巴瘤9例(24.32％)，1例未确定细胞来源。

Methods Serum containing achyranthes root was prepared, human mesenchymal stem cells were separated and amplified, MTT assay was used to access the effects of serum containing achyranthes root on human mesenchymal stem cells in vitro, alkaline phosphatase and osteocalcin were assayed to reflect the variations of stem cell differentiation, and the expression of osteogenic transcription factors with RT-PCR.

制备牛膝含药血清，分离与扩增人间充质干细胞，MTT法检测牛膝含药血清对体外培养的间充质干细胞增殖作用的影响，检测碱性磷酸酶与骨钙素以反映细胞分化水平的改变，RT-PCR检测成骨相关转录因子的表达。

The object of this study is to evaluate the immunoregulation and anti-tumor activities of Arnebia root polysaccharide in vitro. The ARPS was obtained by hot-water extraction, alcohol precipitation, de-protein, de-color, and dialysis etc. from Arnebia root and was administered on mouse spleen lymphocyte and tumor cell with 24 μgmL^(-1), 121 μgmL^(-1), 364 μgmL^(-1), respectively.

为研究紫草多糖在体外对小鼠脾淋巴细胞的免疫调节活性及对肿瘤细胞的细胞毒作用，本实验采用水提醇沉法，经脱蛋白、脱色、透析等方法提取紫草多糖，MTT法检测紫草多糖对淋巴细胞增殖及对HepG2、SPC-A-1肿瘤细胞的杀伤作用。

However, it is not known how orthodontic force influences the function of cementoblast and what is the relationship between the function change of cementoblast with root resorption. So we studied the effect of mechanical stimuli on root resoption by examining the expression OPG and RANKL and exploring the related signal transduction pathway in cementoblast. Methods: Cementoblasts OCCM30 were cultured in DMEM with 10% FBS for 48 hours and starved in DMEM with no FBS for 24 hours, then subjected to mechanical strain by four-point bending system with tension and compression stress at 2000μstrain at 0.5Hz frequency. The flow cytometry was used to examine the cell cycle and proliferation activity after 3h, 6h, 12h, 24h loading respectively. OPG and RANKL mRNA were analysed with real time quantitive RT-PCR after the same loading period as FCM.

本课题利用四点弯曲力学加载系统，采用流式细胞术、实时荧光定量PCR、Western免疫印迹等方法，研究体外培养的成牙骨质细胞株OCCM-30在不同力学环境中增殖活性的变化，以及其表达骨保护素和破骨细胞分化因子的mRNA的变化，探讨应力刺激对成牙骨质细胞表达破骨细胞分化调控蛋白的影响，并通过对应力刺激下成牙骨质细胞分裂原活化蛋白激酶家族中的ERK1/2、P38MAPK活性的变化及其与OPG、RANKL基因表达变化关系的研究，对力学刺激调节破骨细胞分化调控蛋白的相关上游信号转导通路进行初步探讨。

BACKGROUND: Guided tissues regeneration has been successfully used in the treatment of periodontal diseases by using biocompatible membrane to prevent tooth epithelial cell growing towards root and to facilitate the formation of a certain gap which is favorable for periodontal membrane cells to occupy the surface of the root, thereby to rebuild the peridental structure.

背景：引导组织再生已成功地应用到牙周病的治疗，应用生物相容性膜，依靠其机械屏障作用能阻止牙龈上皮根向生长，并形成一定的间隙以利于牙周膜细胞占据根面，进而重建牙周结构。

When the concentration of lead was very high, the most of lead linked weekly with the cell wall of root and was easy to dissolve into acidic solution. But about 50μg Pb/g cell wall was very hardly desorbed, it might be entered into the cell wall. This phenomena showed that the complete desorption of lead will be very difficult.

铅浓度高的细胞壁，其相当大部分的铅与细胞壁的结合力并不大，因此在用强酸处理时，就比较容易地溶解下来，但是大概有50微克／克细胞壁的铅，它们的结合牢度大，或者深入到了细胞壁的组织中，因此很难解吸下来，这将会对铅的彻底去除带来困难。

These include depolarization of the membrane potential in epidermal cells, specific expression of early nodulin genes and changes in the flux of calcium in root hairs, deformation of root hairs, cell division in the root cortex and formation of the nodule primordium.

结瘤因子信号能够诱导豆科植物根毛细胞质膜去极化、离子流动和早期结瘤素基因的表达以及根毛变形、皮层细胞分裂和根瘤原基形成等与共生有关的表型变化。

Actin filaments can not be visualized in other cell types, including stem epidermal cell, root fair cell and pollen.

在转基因植株的其它部位，例如茎表皮细胞、根毛细胞和花粉粒中，未检测到目的基因的表达。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。