Article
Root development under metal stress in Arabidopsis thaliana requires the H+/cation antiporter CAX4.
The New phytologist - 1 Jan 2009
Mei Hui, Cheng Ning Hui, Zhao Jian, Park Sunghun, Escareno Rito A, Pittman Jon K, Hirschi Kendal D
Abstract excerpt
* The Arabidopsis vacuolar CAtion eXchangers (CAXs) play a key role in mediating cation influx into the vacuole. In Arabidopsis, there are six CAX genes. However, some members are yet to be characterized fully. * In this study, we show that CAX4 is expressed in the root apex and lateral root primordia, and that expression is increased when Ni(2+) or Mn(2+) levels are elevated or Ca(2+) is depleted. * Transgenic...
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