Casparian strip development and its potential function in salt tolerance
Volume 6, Issue 10
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Pages 1499 - 1502http://dx.doi.org/10.4161/psb.6.10.17054
Authors: Tong Chen, Xia Cai, Xiaoqin Wu, Ichirou Karahara, Lucas Schreiber and Jinxing Lin View affiliations
The root system is particularly affected by unfavourable conditions because it is in direct contact with the soil environment. Casparian strips, a specialised structure deposited in anticlinal walls, are characterised by the impregnation of the primary wall pores with lignin and suberin. The Casparian strips in the endo- and exodermis of vascular plant roots appear to play an important role in preventing the non-selective apoplastic bypass of salts into the stele along the apoplast under salt stress. However, only a few investigations have examined the deposition and function of these apoplastic barriers in response to salt stress in higher plants.
Received: June 8, 2011; Accepted: June 25, 2011