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【读文献】【2022 NewPhytol-CLE1-7调控芽再生】
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By CRISPR/Cas9-induced loss-of-function studies, peptide application, precursor overexpression, and expression analyses, the role of CLE1-CLE7 peptides and their receptors in de novo shoot regeneration was studied in Arabidopsis thaliana. CLE1-CLE7 are induced by callus-induction medium and dynamically expressed in pluripotent callus.
Journal: New Phytologist First Published: June 01, 2022 Corresponding author：陕西师范大学王国栋. 本文发现在芽再生阶段，CLE1-CLE7能够被强烈诱导表达，并通过CLV1和BAM1抑制WUS的表达，调控芽再生. 背景. 体外诱导再生分为两步：一是在富含生长素的callus-induction media (CIM)上获得愈伤组织和多能性pluripotent；二是转移到 ...
Accepted: 22 May 2022 New Phytologist (2022) 235: 2300-2312 doi: 10.1111/nph.18291 Key words: Arabidopsis thaliana, BAM1, CLE peptide, CLV1, shoot regeneration. ... pression, and expression analyses, the role of CLE1-CLE7 peptides and their receptors in de novo shoot regeneration was studied in Arabidopsis thaliana.
Our results indicate that functionally-redundant CLE1-CLE7 peptides genetically act through CLV1/BAM1 receptors and repress WUS expression to modulate shoot-regeneration capacity, establishing the mechanistic basis for CLE1-CLE7-mediated shoot regeneration and a novel role for CLE peptides in hormone-dependent developmental plasticity.
CLE1-CLE7 are involved in de novo shoot regeneration. Previous studies advocated the idea that CLE1-CLE7 peptides may function in hormone-mediated development (Czyzewicz et al., 2015; Wang et al., 2016).Plant regeneration, involving stem cells reconstitution and de novo SAM initiation, exemplifies the high cellular plasticity of plants in response to environmental stimuli and/or certain ...
CLE1 ~ 7 regulate lateral root formation. (a) Representative images of the wild-type (WT) and cle1 ~ 7-cr1 seedlings at 7 days post-germination (dpg) and 9 dpg. Scale bars: 5 mm. (b) Primary root length of the WT and cle1 ~ 7-cr1 seedlings at 7 dpg and 9 dpg (n ≥ 29).*P < 0.05 by Student's t-test. N.S., not significant. (c) Total lateral root length of the WT and cle1 ~ 7-cr1 seedlings at 7 ...
This study focused on the role of CLE1-7 peptides as defense mediators, and showed that root-expressed CLE3 functions as a systemic signal to regulate defense-related gene expression in shoots. In the natural environment, plants employ diverse signaling molecules including peptides to defend themsel …
clavata3/esr 相关 (cle) 肽以其在干细胞稳态中的调节作用而闻名，也可作为激素等外部刺激的介质。从头再生，代表了显着的植物细胞可塑性，涉及在干细胞调节剂的控制下重建干细胞。然而，调节干细胞的 cle 肽是否以及如何与植物再生有关仍然未知。
2022 卷号: 235 期号: 6 ... the role of CLE1-CLE7 peptides and their receptors in de novo shoot regeneration was studied in Arabidopsis thaliana. CLE1-CLE7 are induced by callus-induction medium and dynamically expressed in pluripotent callus. Exogenously-applied CLE1-CLE7 peptides or precursor overexpression effectively leads to shoot ...
关键信息 本研究重点关注 cle1-7 肽作为防御介质的作用，并表明根表达的 cle3 可作为系统信号调节芽中防御相关基因的表达。 抽象的 在自然环境中，植物利用包括肽在内的多种信号分子来保护自己免受各种病原体的攻击。 ... 2022-01-17, doi: 10.1007/s11103 ...