伸长区

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 ;

此外，对微管骨架的活体观测显示，GFP-MBD（Col-0）与GFP-MBD/cml24-4主根伸长区外表皮细胞的皮层微管排布趋向存在差异，并且这种差异同样具有琼脂表面接触依赖性，不出现于液体培养环境中。

In addition , in vivo microtubule visualization revealed agar surface-dependent difference in cortical microtubule orientation of epidermal cells in primary root elongation zone between GFP-MBD ( Col-0 ) and GFP-MBD / cml24-4 .

根系伸长区内Al含量明显低于根尖对照；

Al contents in the extension zone of roots were lower obviously than those in root tips .

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 .

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 .

甜菜根的初生组织在伸长区下方已开始逐渐分化。

The level of differentiation of the primary tissue located where below the elongation region .

伸长区中部及根毛区细胞也有较多的金颗粒标记。

Cells of middle elongation zone and root hair zone were also labelled by many gold particles .

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 .

在伸长区下方，中柱的外围，表皮和内皮层的分化形成比皮层细胞早一些；

Under the elongation region , the differentiation of epidermis and endodermis were earlier than the cortex which around the vascular cylinder .

根尖的初生分生组织可扩大到伸长区下方一段距离.（生物学）因变形而伸长的。

The primary meristem of the root tip may be extended a section of distance below the elongation region . ( biology ) produced by metamorphosis .

实验揭示了标记菌侵入水稻根的两个位点为：根尖（伸长区）以及初生根和次生根的交联处。

It also indicated that the root tip in the zone of elongation and the junctions between the primary and the lateral roots were the two sites for the bacteria entry into rice root .

水分胁迫可导致初生分生组织或伸长区前部细胞金颗粒标记密度大增，伸长区中部及根毛区细胞的金颗粒密度也明显增加。

In cells of the primary meristem and the front part of elongation zone , water stress could lead to acute increase of the gold particle density , and also in the cells of the elongation and root hair zone .

在高浓度NO3~-供应条件下，478根伸长显著缩短，侧根发生部位距根尖的距离变短、根冠变薄，根伸长区膨大。

At higher nitrate supply , root elongation of 478 was inhibited , the distance from the site of lateral root elongation to root tip became shorter , the root cap became shorter , and root elongation zone became swollen .