转录学和生理学分析显示,硫减轻了大米 (Oryza sativa L.) 中的毒性
Yingmei Huang1, Jicai Yi2, Xiaomin Li3
1National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-Environmental Pollution Control and Management, Institute of Eco-Environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China; Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China; University of Chinese Academy of Sciences, Beijing 100049, China.
Journal of environmental sciences (China)
|October 1, 2023
概括
添加硫可以通过减少积累和氧化应激减轻植物中的毒性. 这项研究揭示了硫.
科学领域:
- 环境科学 环境科学
- 植物生物学 植物生物学
- 生物化学 生物化学
背景情况:
- 米中的 (Hg) 污染对全球健康构成重大风险.
- 硫 (S) 对于植物生长至关重要,可以减少大米中的积累.
- 硫对压力大米的影响机制尚未完全理解.
研究的目的:
- 为了研究硫对压力下大米生长的影响.
- 为了分析用硫处理的压力大米中的生理反应和基因表达特征.
- 为了阐明大米植物中硫中介耐的机制.
主要方法:
- 用化 (HgCl2) 和元素硫 (S) 对苗进行水培处理.
- 评估积累,生长参数,生理指数 (ROS,脂质过氧化,抗氧化酶,谷氨).
- 转录组分析以确定差异表达的基因和代谢途径.
主要成果:
- 硫的应用显著减少了在根中的积累,并减轻了生长抑制.
- 硫减少了活性氧物种,脂质过氧化和抗氧化酶活性,同时增加了谷氨水平.
- 转录组分析揭示了与生物合成,新陈代谢,运输和应激反应相关的基因表达的显著变化.
结论:
- 硫在增强植物对压力的抵抗力方面发挥着至关重要的作用.
- 硫通过调节中的生理和分子反应来减轻的毒性.
- 研究结果支持开发用于污染环境中的减少和植物修复的策略.
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