Jing Yanping, Zhao Fugeng, Lai Ke, Sun Fei, Sun Chenjie, Zou Xingyue, Xu Min, Fu Aigen, Sharifi Rouhallah, Chen Jian, Zheng Xiaojiang, Luan Sheng
International Genome Center, Jiangsu University, Zhenjiang, China.
School of Life Sciences, Jiangsu University, Zhenjiang, China.
Front Plant Sci. 2024 Feb 15;15:1336129. doi: 10.3389/fpls.2024.1336129. eCollection 2024.
Plant Elicitor Peptides (Peps) induce plant immune responses and inhibit root growth through their receptors PEPR1 and PEPR2, two receptor-like kinases. In our study, we found a previously unknown function of Peps that enhance root hair growth in a PEPRs-independent manner. When we characterized the expression patterns of genes, we found several gene promoters of gene family were particularly active in root hairs. Furthermore, we observed that is vital for root hair development, as disruption of gene led to a significant reduction in root hair density and length. We also discovered that regulates root hair formation via the modulation of and expression, thereby influencing the cell-fate determination of root hairs. Additionally, calcium signaling appeared to be involved in PROPEP2/Pep2-induced root hair growth. These findings shed light on the function of Peps in root hair development.
植物激发子肽（Peps）通过其受体PEPR1和PEPR2（两种类受体激酶）诱导植物免疫反应并抑制根系生长。在我们的研究中，我们发现了Peps以前未知的功能，即它们以不依赖于PEPRs的方式促进根毛生长。当我们对基因的表达模式进行表征时，我们发现基因家族的几个基因启动子在根毛中特别活跃。此外，我们观察到对根毛发育至关重要，因为基因的破坏导致根毛密度和长度显著降低。我们还发现通过调节和的表达来调控根毛形成，从而影响根毛的细胞命运决定。此外，钙信号似乎参与了PROPEP2/Pep2诱导的根毛生长。这些发现揭示了Peps在根毛发育中的功能。
