The role of miR156 in rejuvenation in Arabidopsis thaliana
The role of miR156 in rejuvenation in Arabidopsis thaliana
复制标题
miR156在拟南芥返老还童中的作用
DOI：
10.1111/jipb.12855
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发表时间：
--
影响因子：
11.4
通讯作者：
Wang Jia Wei
中科院分区：
文献类型：
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作者：
Ye Bin Bin;Zhang Ke;Wang Jia Wei
返老还老是指植物恢复进入成虫期后失去的生理和分子特征的过程。其潜在的分子机制尚不清楚。先前的研究表明，microRNA156 （miR156）在幼鱼阶段高度积累，并通过抑制一组SQUAMOSA启动子结合蛋白样（SPL）转录因子来维持幼鱼性状。在这里，我们发现在成年叶片中诱导miR156的表达只能恢复幼苗的某些特征，如叶片下部表皮叶毛的缺失和叶缘锯齿的缺失，但不能延迟开花和促进不定根的产生。
Rejuvenation refers to the process enabling plants to regain physiological and molecular characteristics lost after entering the adult phase. The underlying molecular mechanism is poorly understood. Previous studies have revealed that microRNA156 (miR156) is highly accumulated at juvenile stage and maintains juvenile traits by repressing a group of SQUAMOSA PROMOTER BINDING PROTEIN‐LIKE (SPL) transcription factors. Here, we found that induction of miR156 expression in adult leaves can only restore some aspects of juvenile traits, such as loss of epidermal leaf hairs on the lower side of leaves and absence of serration at the leaf edges, but is incapable of delaying flowering and promoting adventitious root production.