根细胞

"Within a tumor, it is hard to tell where the borders of cells stop, so one way to measure adherence is to look at the size of the nuclei in cells and see if they are wider due to cell spread," Bergan said.

"在一个肿瘤，这是很难说那里的边界细胞停止，所以一方法来衡量坚持的是看大小，细胞核的细胞，看看他们是更广泛的，由于细胞的蔓延，"伯根说。

The results implied that cell karyokinesis could be promoted at low concentration and be restrained at high concentration.

在一定低浓度条件下，蚕豆根尖细胞有丝分裂指数增高，高浓度下有丝分裂指数降低，意味着低浓度可促进细胞有丝分裂，高浓度则会抑制细胞有丝分裂。

Pekinensis . IAA at concentration of 0.4-1. 0 mg/L in solid MS medium incited many adventitious roots on hypocotyl segments. The earliest anatomic changes were observed on cut surface of hypocotyl segments under optical microscope 24 hours after IAA treatment: cytoplasmic and nuclear density became higher in a few of parenchytmatous cells adjacent to phloem in tissue of pericycle, followed by cell divisions.

在生长素诱导24h后，可借助显微切片观察到下胚轴切面附近明显的解剖学变化：首先是中柱鞘内靠近韧皮部的薄壁细胞的细胞质与细胞核变浓，染色加深，部分细胞分裂；随后是分裂的细胞团增大，逐渐形成根原基并分化出根冠。

The cell wall of sclerenchyma in ROL barrier was significantly thickened in conventional lowland rice (Yangdao 6) with the increase of PEG concentration, but upland rice (Zhonghan 3) was not sensitive to low PEG concentration. The thickening of ROL barrier obviously became stronger at 50 g·L-1 and higher concentrations. Besides, suberisation of cell walls increased significantly with the time extension.

随PEG浓度的升高，水稻(扬稻6号)根的ROL屏障厚壁细胞胞壁宽度明显增加；旱稻(中旱3号)对低浓度PEG胁迫不敏感，当PEG浓度达50 g·L-1以上时，ROL屏障厚壁细胞才表现出明显加厚的趋势，且随PEG胁迫时间的延长，厚壁细胞栓质化程度变高。

During the development of dental germ, enamel matrix proteins secreted by epithelial root sheath could induce dental follicle cells to differentiate towards cementoblast and form acellular cementum finally on the surface of tooth root. Many researches of domestic and oversea scholars suggest that enamel matrix proteins could effectively induce periodontal regeneration, and the structure and function of this regenerated tissue are similar to healthy periodontal tissue. Moreover, the regeneration process is nearly the same to that of embryonic development of periodontal tissue.

自发现釉基质蛋白可诱使牙囊细胞向成牙骨质细胞方向分化并在根表面形成无细胞性牙骨质以来，国内外学者做了大量研究，结果表明釉基质蛋白能有效诱导牙周组织的再生，且这种再生组织的结构和功能更接近于健康的牙周组织，并且再生过程也与牙周组织的胚胎发育过程类似。

It shows that As2O3 has marked cytogenetic toxic effect on the root tip cells of Vicia Faba,and effect of accumulating the metaphases in mitosis.

结论是As2O3对蚕豆根尖细胞具有明显的细胞遗传学毒性效应，并具有积累有丝分裂中期细胞的效应。

The results showed that there was a great deal of microfilaments in root meristematic cells, there was a few microfilaments in cotton callus and abnormal plantlets; By alignment of PEAc17 with cotton actin.

我们发现在根原分生组织，原形成层和基本分生组织细胞中含有丰富的微丝，微丝呈网状分布；在愈伤组织细胞中微丝含量少；在畸形苗细胞中含有少量的微丝。

Of 92 acutely dissociated dorsal root ganglion cells recorded by current patch-clamp technique, 34% were discharged by FA application with the mean onset latencies of the first action potential being (367.34+/-32.96) s. All the FA-sensitive cells were identified as nociceptor cells by their distinguishable features of AP including longer duration, existence of a hump on the repolarizing phase, and longer after-hyperpolarization of APs.

运用电流钳记录的92个背根神经节细胞中，大约有34%的中、小细胞对甲醛溶液敏感，产生动作电位的发放，其产生动作电位的潜伏期是(367.34±32.96) s，并且单个动作电位复极化相具有伤害性感受器细胞的特征性，如动作电位间期较长、复极化相有&驼峰&以及较长的后超极化相。

In the present study a solution culture method was developed to test the effects of mycorrhiza formation on organic acids.

本试验改固体培养基为营养液培养基，采用静止的培养方法，在培养四个月时发现，萌发孢子的菌丝生长良好，菌丝已经侵染了根段，形成了根内菌丝，同时也观察到大量辅助细胞的存在；培养六个月后，形成了成熟的新孢子，说明营养液静止培养菌根共生联合体的方法是成功的。

Through observing of the ectomycorrhizal exterior forms and tissue sections, we found there were mantle of fungi tissue which enclosed the root, emanating hyphae of the rhizoplane, and the Hartig net which was formed by the hyphae between the epidermal and cortical cells.

035、044、GT005、LH008。通过6种外生菌根及其组织切片的观察，发现菌根根表具有外延菌丝和菌丝套，在细根皮层细胞间形成哈蒂氏网，证明这6种外生菌根真菌与白桦幼苗建立了共生关系。

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。