根偏好的 OsPUB36 调节了 ROS 水平,并调节了根发育
Sunok Moon1, Yo-Han Yoo2, Ha Eun Park1
1Graduate School of Green Bio-Science & Crop Biotech Institute, Kyung Hee University, Yongin, 17104, Republic of Korea.
Plant cell reports
|December 12, 2025
概括
OsPUB36,一种根偏好的E3泛素酶,通过调节活性氧物种 (ROS) 恒温作用来影响大米根的发育. 过度表达缩短了主要根,延长了根毛,影响了植物的生长.
科学领域:
- 植物生物学 植物生物学
- 分子生物学分子生物学
- 遗传学 遗传学 是一个
背景情况:
- 根部的发育受到活性氧物种 (ROS) 梯度的调节.
- 第三类PUB E3无素连接酶参与植物生长.
- 米中的OsPUB36是一种根偏好的E3泛素联酶.
研究的目的:
- 为了研究OsPUB36在米根发育中的功能.
- 了解OsPUB36在活性氧物种恒温中的作用.
- 探索OsPUB31-OsPUB37基因子类中的潜在功能冗余.
主要方法:
- 遗传学元分析以确定基因子类.
- 通过过度表达和突变分析对OsPUB36的功能性特征.
- RNA测序和蛋白质组分析以确定分子途径.
- 组织化学染色以评估过氧化水平.
主要成果:
- 在大米中过度表达OsPUB36,导致主要根的缩短和根毛的延长.
- OsPUB36局部存在于内质网膜 (ER).
- 在过度表达OsPUB36的植物的根毛中观察到III类过氧化酶的升级和过氧化 (H2O2) 水平的增加.
- 功能丧失突变体没有显著的表型,表明功能冗余.
结论:
- OsPUB36在调节根发育和活性氧物种恒温中发挥作用.
- OsPUB36调节了根毛延长和主要根长度.
- 在大米中的III类PUB E3无素连接酶中存在功能冗余.
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