铜类信号抑制了ZINC FINGER PROTEIN11以调节Arabidopsis中的卵子发育
Xin Wang1, Jiaxin Liu1, Erlei Shang1
1State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210023, China.
The Plant cell
|October 7, 2024
概括
通过ZINC FINGER PROTEIN 11 (ZFP11) 控制阿拉比多普西斯卵子的发育. AG激活ZFP11,而BR信号抑制它,确保适当的卵子形成和数量.
科学领域:
- 植物生殖生物学 植物生殖生物学
- 分子遗传学 分子遗传学
- 激素信号通路是激素的信号通路.
背景情况:
- 铜 (BR) 信号传递和AGAMOUS (AG) 基因对于Arabidopsis卵子发育至关重要.
- 在女性生殖过程中,BR信号和AG功能的整合还不太清楚.
研究的目的:
- 阐明BR信号如何与AG相互作用以调节卵子发育.
- 为了确定调解这种相互作用的关键基因.
主要方法:
- 对阿拉比多普西斯突变物 (zfp11, bri1) 的分析.
- 对基因表达的分析 (ZFP11,INO,WUS).
- 研究了AG和BRASSINAZOLE-RESISTANT 1 (BZR1) 的转录调节.
主要成果:
- 指蛋白11 (ZFP11) 是AG的直接标,并调解BR信号在卵子发育中的作用.
- 胎盘中的AG激活ZFP11表达,而在其他卵巢区域的BR信号 (BZR1) 抑制.
- zfp11突变体表现出卵子数量减少和膜发育缺陷,影响INNER NO OUTER (INO) 和WUSCHEL (WUS) 表达.
- zfp11突变对BR抑制剂的敏感性发生变化,可以挽救brassinosteroid不敏感1 (bri1) 突变中的缺陷.
结论:
- 通过AG和BR信号对ZFP11的空间调节对于Arabidopsis卵子发育至关重要.
- 这种调节网络确保了足够的卵子生产和卵子结构的正确形成.
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