Nitrate is essential for plant growth and development. When nitrate availability is low, plants produce more lateral roots (LRs) to seek nitrate from the soil. In this study, by DNA electrophoretic mobility shift and luciferase assays, it was showed that NIN-like protein 7 (NLP7) transcription factor activated expression of TAR2 by directly binding to its promoter. Finally, through genetic analysis, it was speculated that NLP7 regulated LR development through TAR2. In conclusion, NLP7 binds to the TAR2 promoter and activates TAR2 expression, thereby promoting nitrate-dependent LR development.

中文翻译：

---

NIN 样蛋白 7 通过激活色氨酸氨基转移酶相关 2 的转录促进硝酸盐介导的侧根发育

硝酸盐是植物生长发育所必需的。当硝酸盐可用性低时，植物会产生更多的侧根 (LR) 以从土壤中寻找硝酸盐。在这项研究中，通过 DNA 电泳迁移率变化和荧光素酶测定，表明 NIN 样蛋白 7 (NLP7) 转录因子通过直接与其启动子结合来激活 TAR2 的表达。最后通过遗传分析推测NLP7通过TAR2调控LR发育。总之，NLP7 与 TAR2 启动子结合并激活 TAR2 表达，从而促进硝酸盐依赖性 LR 发育。