分生区

根尖直径1～1.5mm，长轴方向有根冠、分生区、伸长区和成熟区4个分区，成熟区上有大量的根毛；

Can be divided into four zones which are root cap , meristematic zone , elongation zone and maturation zone where many tubelike root hairs extending from the exterior wall of the epidermis cell .

发现水稻根尖细胞分化过程中从分生区至成熟区细胞内的微丝分布格局确实发生了改变。

It was found that the actin distribution pattern in rice root tip cells during differentiation from meristematic zone to the mature region were significant different .

RNA的相对含量则与之相反，在分生区细胞中含量最高，成熟区细胞中含量最低。

The relative content of RNA was maximum in the meristem region , but decreased continuously during the growth of tissue .

随着水分亏缺程度的加剧，H2O2的分布区域从根冠向分生区和伸长区逐渐延伸，H2O2的含量也逐渐增多。

As the water deficit extend is aggravating , the accumulation of H2O2 increased and extented from root tip to meiosis zone .

通过RNA原位杂交和OsRAA1基因启动子调控GUS基因表达的模式，证实OsRAA1基因主要在根尖的顶端分生区和伸长区，根尖分支区和幼侧根的中柱，侧根的原基表达。

The results of in situ hybridization showed that its expression was detectable clearly in the apical meristem , the elongation zone of root tip , steles of the branch zone and the young lateral root .

VAM对根尖的侵染率差异以分生区最显著，并可诱导形成根原基；VAM可侵染根冠。

The most high infest rate of VAM to root tip is the meiosis zone , VAM can induce root primordium here , VAM also can infect the root cap .

GUS染色显示NPC2在根中主要是在根尖分生区和伸长区表达，在成熟区主要是在维管组织中表达；

The results of GUS staining showed that NPC2 expressed mainly in meristematic zone , elongation zone and vascular tissue of maturation zone of root tip ;

组织切片发现突变体sr1短根表型是因为在根尖的分生区细胞数目减少和各种类型细胞的径向直径减小所造成。

Histological observation of seminal root tips indicated that the short root phenotype was due to the reduced cell number and cell expansion .

不同浓度梯度的双酯灵（简称WD），在不同时间处理下的洋葱根尖细胞形态研究结果表明，双酯灵使洋葱根尖分生区细胞有丝分裂指数下降。

The effects of a new herbicide & WD on meristematic zone cell of onion root tip was studied in this paper . The results showed that the mitotic index of root tips was decreased with the treating of WD .

RRG基因编码一个线粒体蛋白，rrg突变体中根分生区细胞中线粒体呈现大量的空泡化，表明植物线粒体在细胞分裂调控中起重要作用。

RRG encodes a mitochondrial protein , and the mitochondria in root meristem cells of rrg mutants display extensive vocalization , implicating plant mitochondria has an important role in the regulation of cell division .

我们的研究第一次揭示了拟南芥RRG基因调控根分生区细胞分裂活动，并为植物线粒体参与细胞分裂调控提供了新的证据。

Our data reveal for the first time the role of the Arabidopsis RRG gene in regulating cell division in the root meristem , and provide a new evidence for the involvement of plant mitochondria in cell division .

分生区细胞根据细胞所在的分裂时期主要有两种状态的微丝分布。

There were two states of actin distribution in the meristem region .

不同低温对大蒜根尖分生区细胞的同步化作用

Effect of low temperature on cell synchronized division in the root tip of

油葵茎尖周缘分生区培养及高频率芽再生

The Culuture of Apical Shoot of Oil Sunflower and Its High Frequent Regeneration

除草剂拿草特对菟丝子幼苗茎尖分生区有丝分裂的影响

Effect of pronamide on the mitosis in the shoot meristems of dodder seedlings

根、茎、叶、花和种子中均有表达，并且在根的分生区，根毛区，根毛，叶片维管束附近，花粉，胚珠和幼嫩的种皮中有丰富的表达。

There are expression in root , stem , leaf , flower and seeds .

盐胁迫预处理对大麦根尖分生区细胞超微结构的影响

Effect of imbibition under Salt Stress on meristematic cell ultrastructure in root tips of barley

甜菊愈伤组织分生区细胞中膜内含物的超微结构研究

Ultrastructural studies on membraned inclusions in the cells of meristematic regions of Stevia rebaudiana callus

蛋白质的相对含量则在伸长区细胞中最高，分生区细胞中最低。

The relative content of protein was maximum in the elongation region , but minimum in the meristem region .

盾叶薯蓣地下茎的不定根根尖由根冠、分生区、伸长区和成熟区四部分组成。

The root tip of adventitious root included four parts : root cap meristem zone , elongation zone and root-hair zone .

对植物分生区设置三种侧芽因子提高植物生成不同器官的可控性。

This approach can improve the controllability of different organs in plant growth by setting three kinds of lateral bud factors .

种子萌发时，部分个体早期初生根紧邻根尖分生区之上产生环状膨大生毛区。

When the seeds sprout , some individuals have cyclic annular inflated hair zone above early initial roots which close neighbor root tip meristematic zone .

剥除根冠而保留根尖的分生区和伸长区时，根能生长但失去负向光性，保留根冠的原始细胞时，当根冠重新长出时，又恢复负向光性生长。

Rice root could resume the characteristic of negative phototropism when the new root cap grew up , if the original cells of root cap were well protected while root cap was divested .

细胞学石蜡切片观察表明突变体顶芽分生组织变异较大，细胞多而排列不规则，分生区与成熟区之间层次感不明显，大部分分生组织细胞着色较深，正在进行着异常的快速分裂与分化。

The cell biology examination indicated that the meristem was dramatically changed in mutant , being with irregular cell arrangement , no obvious layer between meristem and mature tissue , and rapidly divisional and differentiated cells .