韧皮部

Intrafascicular CAMBIUM between xylem and phloem . annual ring Secondary phloem See secondary growth .

这种细胞存在于根和芽的顶端分生组织以及在原来分裂组织基础上形成的侧生分生组织，如位于木质部和韧皮部之间的束中形成层。

The phenomena of function equilibrium between root system and canopy was observed.

本研究从植株整体的物理性质（源汇强度和韧皮部传输性质）出发，从更低的层次上模拟观察到了在环境水分条件发生变化时植株根冠间存在的功能平衡现象，并对此作出了机理性的解释，说明了当同化物的传输受维管束中压力势控制，而且韧皮部与所在器官的水势保持平衡状态时，根冠之间就会存在功能平衡关系，这说明了根冠间的功能平衡现象应该是维管植物适应环境变化过程中的一种普遍现象。

JA transportation is likely to be through ray parenchyma cell, vessel tube and sieve tube in H.

JA在橡胶树内可快速通过韧皮部经由形成层径向运输到木质部，同时，JA能通过木质部和韧皮部进行纵向长距离双向运输。

Our results showed that the transportation of JA from phloem to xylem occurred mainly through ray parenchyma cells and cambium regions, and that JA could be transported rapidly upwards and downwards through vessel tube and sieve tube.

3H—JA分布在筛管、次生韧皮部的薄壁细胞和射线细胞、形成层区以及导管、次生木质部的薄壁细胞和射线细胞，其中，在韧皮部和木质部的射线细胞及筛管、导管壁周围分布最多。

It is suggested that the action site of ABA on sugar unloading may be at theplasmalemma of SE/CC complex, but not at the apoplasmic space during sugar metabolism indeveloping apple fruit,and that the action site of ABA on sugar loading into sink cells may be notrestricted only at the plasmalemma of the cells.

根据实验结果综合分析认为，ABA对果实内糖卸出的作用位点可能在SE/CC复合体的质膜上，而不在质外空间糖的代谢过程中；ABA对糖装入的作用位点可能不限于库细胞质膜；ABA在果肉韧皮部的富集，一方面可能与ABA的输入有关，另一方面可能与韧皮部存在ABA作用位点有关。

The cambial cells ceased to divide to produce secondary phloem cells at the end of July, but contineous to produce secondary xylem tissues until mid-August.

杜仲枝条中形成层在3月份开始恢复活动，同时产生木质部和韧皮部。7月底形成层细胞停止分裂，同时停止产生韧皮部，8月中旬停止产生木质部。

Kenaf phloem bundle fiber layers were separated with a acidified sodium chlorite treatment with an additional ammonium oxalate treatment.

采用亚氯酸钠冰醋酸和草酸铵处理，将不同部位的红麻韧皮部束纤维进行分层，并-测定各束纤维层的纤维细胞长度，探讨红麻韧皮部纤维细胞长度的分布规律。

Stylets of the aphids on the stems could reach the phloem with less probes and shorter time compared to those of aphids on other two parts.And no significant differences were found in feeding behaviors among aphids on three plant parts once sustained ingestion started in the phloem.

相对于其它两个部位，甘蓝蚜的口针在花茎上用较少的刺探次数和较短的时间到达韧皮部；一旦口针进入韧皮部持续吸食阶段，蚜虫在三个部位的取食行为没有太大的差异。

The fiber average length of the phloem is 7.45mm and the fiber average length of the xylem is 0.58 mm.

明，人工种植构树韧皮部果胶含量较高，达11.67％；皮、杆的冷、热水抽出物及1％NaOH抽出物均比杨木高出几倍；韧皮部纤维平均长度为7.45 mm，而木质部仅为0.58 mm。

The distribution of ATPase activity in the phloem parenchyma cells and flesh parenchyma cells(no-phloem parenchyma cells)changed during the different developmental phases of the fruit.It isparticularly interesting to observe a band along the plasmalemma of flesh parenchyma cellsadjacent to the phloem,the band highly enriched with the ATPase activity,forming a ring ofencirclement that surrounds the phloem.

结果表明：SE/CC复合体的ATP酶主要定位于质膜上，韧皮薄壁细胞和果肉薄壁细胞的ATP酶在不同时期的分布和活性是不一样的，令人注目的是：在邻近韧皮部的果肉库细胞的细胞壁和质膜之间发现一条ATP酶活性物质的聚集带，形成环状，包围韧皮部。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。