Analysis of aluminum response gene expression mechanism in rice

离子铝诱导水稻中许多耐铝基因的表达。本研究发现水稻耐铝基因STAR1受转录因子ART1调控，并进一步鉴定了一个被ART1识别的顺式作用元件。我们也获得了过表达ART1的转基因水稻。虽然转基因品系ART1和许多下游耐受基因的表达水平增加，但与野生型相比，对Al的敏感性增强。

Expressions of many Al-tolerance genes are induced by ionic Al in rice. In this study, we found that a rice Al tolerance gene, STAR1, was regulated by a transcription factor, ART1 and further identified a cis-acting element recognized by ART1. We also produced transgenic rice over-expressing ART1. Although the transgenic lines showed increased expression level of ART1 and many downstream tolerance genes, the sensitivity to Al was enhanced compared to the wild type.