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通过在米土壤中人工基细胞组织对的可持续固定

Zhao-Feng Yuan¹, Yujie Zhou¹, Zheng Chen²

¹Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China.

Environmental science & technology

|August 7, 2023

概括

人造的有机组织 (MAT) 可持续地增加了大米田中的土壤氧化还原潜力 (Eh). 这种方法降低了 (As) 的生物可用性和在米粒中的积累,提供了一个低成本的解决方案.

科学领域:

环境科学环境科学
土壤科学土壤科学
农业科学农业科学

背景情况:

(As) 是一个重要的环境污染物,通过食用大米对健康构成风险.
提高土壤氧化还原潜力 (Eh) 可以降低米中的As生物可用性,但缺乏可持续的米管理方法.

研究的目的:

引入和评估一种新方法,使用人造的有机细胞组织 (MAT) 来管理大米田的土壤EH.
评估MAT对的生物可用性,土壤化学,微生物活动和谷中的积的影响.

主要方法:

在大米田中部署了MAT,以模仿植物根部释放的氧气,增加土壤Eh.
对土壤样本进行了Eh,溶解有机碳,Fe,Mn和As度的分析.
参与酸盐氧化过程的aioA基因的丰度得到量化.
测量了米粒中的积累.

主要成果:

MAT可持续地增加了土壤Eh,在半径为5厘米的范围内,在100天内增加了约30%.
溶解有机碳,Fe,Mn和As的度显著下降 (28.5%至63.3%).
MAT促进了化氧化成酸盐的氧化,这是aioA基因丰度增加130%的证据.
在米粒中的积累减少了30.0%.

结论:

人造的化组织提供了一种低成本,可持续的方法来管理大米田的土壤.
这种方法有效地减少了在米粒中的A的生物可用性和积累.
马特为减轻农业系统中污染提供了一个有前途的战略.

关键词:

在空中,有酵母性组织.亚是一种.铁铁铁是什么意思铁铁铁氧气氧气是一种大米大米大米大米大米

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