Root apex transition zone as oscillatory zone.
Root apex transition zone as oscillatory zone.
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根尖过渡区为振荡区。
DOI：
10.3389/fpls.2013.00354
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发表时间：
2013
影响因子：
5.6
通讯作者：
Mancuso S
中科院分区：
文献类型：
--
作者：
Baluška F;Mancuso S
高等植物的根尖对环境刺激表现出很高的敏感性。根冠作为最突出的植物感觉器官;感知各种物理参数，如重力，光，湿度，氧气和关键无机营养物质。然而，对这些刺激的运动反应是在伸长区完成的。当我们发现并表征了顶端分生组织和亚顶端伸长区之间的过渡区时，这种空间差异得到了解决。这一区域的细胞在细胞骨架重排、内吞和内吞囊泡再循环以及电活动中非常活跃。在这里，我们讨论的振荡性质的过渡区，连同其他几个功能，这个区域，建议它作为某种指挥中心。根据Charles和弗朗西斯达尔文的早期提议，根区的细胞接收来自根冠的感觉信息，并指导伸长区细胞的运动反应。
Root apex of higher plants shows very high sensitivity to environmental stimuli. The root cap acts as the most prominent plant sensory organ; sensing diverse physical parameters such as gravity, light, humidity, oxygen, and critical inorganic nutrients. However, the motoric responses to these stimuli are accomplished in the elongation region. This spatial discrepancy was solved when we have discovered and characterized the transition zone which is interpolated between the apical meristem and the subapical elongation zone. Cells of this zone are very active in the cytoskeletal rearrangements, endocytosis and endocytic vesicle recycling, as well as in electric activities. Here we discuss the oscillatory nature of the transition zone which, together with several other features of this zone, suggest that it acts as some kind of command center. In accordance with the early proposal of Charles and Francis Darwin, cells of this root zone receive sensory information from the root cap and instruct the motoric responses of cells in the elongation zone.
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