Arabidopsis NOTCHLESS plays an important role in root and embryo development

文献类型： 外文期刊

第一作者： Li, Ke

作者： Li, Ke;Zhang, Qingtian;Liu, Huiping;Wang, Fengxia;Li, Ao;Ding, Tingting;Mu, Qian;Zhao, Hongjun;Wang, Pengfei;Ding, Tingting;Wang, Pengfei;Zhao, Hongjun;Wang, Pengfei

作者机构：

关键词： Arabidopsis; NLE; MDN1; root; embryo; >

期刊名称：PLANT SIGNALING & BEHAVIOR （ 影响因子：2.9； 五年影响因子：2.9 ）

ISSN： 1559-2316

年卷期： 2023 年 18 卷 1 期

页码：

收录情况： SCI

摘要： Ribosome biogenesis is a fundamental process in eukaryotic cells. NOTCHLESS (NLE) is involved in 60S ribosome biogenesis in yeast, but its role in Arabidopsis (A. thaliana) remains exclusive. Here, we found that Arabidopsis NLE (AtNLE) is highly conservative in phylogeny, which encoding a WD40-repeat protein. AtNLE is expressed in actively dividing tissues. AtNLE-GFP is localized in the nucleus. AtNLE physically interacts with the MIDAS domain of AtMDN1, a protein involved in the biogenesis of the 60S ribosomal subunit in Arabidopsis. The underexpressing mutant nle-2 shows short roots and reduced cell number in the root meristem. In addition, the null mutant nle-1 is embryo lethal, and defective embryos are arrested at the early globular stage. This work suggests that AtNLE interacts with AtMDN1, and AtNLE functions in root and embryo development.

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