原生真菌作为一种以自然为基础的解决方案,以减轻米中有毒金属 () 积累的情况
Laura Canonica1, Michele Pesenti2, Fabrizio Araniti2
1Laboratory of Mycology, Department of Earth, Environment and Life Science, University of Genoa, Corso Europa 26, 16132 Genoa, Italy.
Microorganisms
|July 30, 2025
概括
原生土壤真菌可以减轻大米中的重金属污染. 在交替灌湿和干燥 (AWD) 下应用的土著真菌显著减少了大米植物的吸收,为食品安全提供了可持续的解决方案.
科学领域:
- 农业科学 农业科学
- 环境科学 环境科学
- 微生物学 微生物学
背景情况:
- 在田中的重金属污染威胁到食品安全和大米生产率.
- 生物注射剂为减轻作物中金属吸收提供了一个潜在的策略.
研究的目的:
- 评估本土土壤真菌作为生物化剂,以减少大米中重金属吸收.
- 评估不同水资源管理实践 (永久性洪水与交替湿和干) 对金属积累的影响.
主要方法:
- 根据促进植物生长的特征和二次代谢物产生的八种真菌菌株的选择.
- 在温室实验中,三种大米品种种植在金属污染土壤中,在永久洪水 (PF) 和交替湿和干燥 (AWD) 条件下.
- 分析,,和铜在芽和根中的积累.
主要成果:
- 在AWD下进行的本土真菌注射显著降低了在芽中的积累,高达75%.
- AWD增加了的吸收,但真菌注射在一些水品种中适度降低了 (15-25%).
- 在永久洪水条件下,没有观察到金属积累的显著减少.
结论:
- 原生土壤真菌显示出作为生物剂的潜力,可以减少大米中的重金属吸收,特别是在AWD条件下.
- 这种方法为环境修复和在受污染的田中可持续农业提供了以自然为基础的解决方案.
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