亚酸氧化细菌通过重塑离子和转录基因平衡来增强大米的弹性,以减轻亚酸植物毒性
Guobing Lin1,2, Xin-Yuan Li2,3, Xiaoman He4
1State Key Laboratory of Soil Pollution Control and Safety, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China.
Journal of agricultural and food chemistry
|December 4, 2025
概括
氧化的细菌SMS11显著降低了大米植物和土壤中的. 这项研究揭示了SMS11是如何重塑植物的.
科学领域:
- 环境微生物学 环境微生物学
- 植物科学 植物科学
- 生物化学 生物化学
背景情况:
- 米中的 (As) 污染对人类健康和农业构成风险.
- 氧化 (AsIII) 的细菌为米中的减轻提供了一个有希望的策略.
- 在大米中减轻细菌的分子机制尚不清楚.
研究的目的:
- 研究氧化细菌SMS11对的积累和大米植物生理学的影响.
- 阐明分子机制,包括离子和转录组变化,参与SMS11介导的缓解.
- 评估SMS11在提高大米对压力的抗性方面的潜力.
主要方法:
- 使用大米植物和化氧化细菌SMS11进行了土和水培实验.
- 测量了土壤,孔水和大米组织中的含量.
- 对米芽和根进行了离子分析 (离子含量) 和转录组分析 (基因表达).
主要成果:
- 通过SMS11注射,孔水含量减少了94.8%,射含量减少了40.6%,射生物质增加了78.3%.
- 米中基本离子含量 (P,K,Mg,Ca) 的AsIII诱导的变化被SMS11减轻.
- 转录组分析揭示了积基因的显著下调和被破坏的生物过程的恢复,包括氧化应激反应和光合作用.
结论:
- 用酸盐氧化细菌SMS11进行注射,有效地减轻了在米植物中的积累.
- 通过调节离子和转录组的平衡,SMS11增强了对压力的抗性.
- 这项研究为细菌介导的缓解提供了分子洞察力,为农业应用铺平了道路.
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