Isolation and characterization of Si transporter

硅（Si）是植物生长的有益元素，有助于植物克服多种逆境。在这个项目中，我们已经确定了几个转运蛋白参与硅的吸收和分布。从水稻中鉴定的Lsi1和Lsi2在根中表达，并且极性定位于外皮层和内皮层。这些转运蛋白对根系吸收Si非常重要。Lsi6定位于叶片和节I的木质部薄壁组织中，负责Si的分配。我们还从玉米和南瓜中鉴定了类似的转运蛋白。我们发现它们与水稻有不同的表达模式和定位。

Silicon (Si) is a beneficial element for plant growth, which helps plants to overcome multiple stresses. In this project, we have identified several transporters involved in Si uptake and distribution. Lsi1 and Lsi2 identified from rice are expressed in the roots and polarly localized at the exodermis and endodermis. These transporters are important for Si uptake by the roots. Lsi6 is localized at the xylem parenchyma of leaf and node I and responsible for distribution of Si. We also identified similar transporters from maize and pumpkin. We found that they have different expression pattern and localization from rice.