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生物炭重塑了树根球微生物群落的结构和功能,以减轻糖甜菜在fomesafen植物毒性下

Yunlong Guo¹, Xiaochen Lin², Baiquan Song³

¹National Sugar Crops Improvement Center, Heilongjiang University, Harbin, 150080, China.

Journal of environmental management

|November 2, 2025

概括

添加生物炭可以通过增强土壤微生物群落和提高植物抗压力来减轻对甜菜的除草剂损害. 这项研究证实了生物炭的存在.

科学领域:

农业科学农业科学
环境科学环境科学
土壤微生物学土壤微生物学

背景情况:

在土壤中的fomesafen除草剂残留物对随后的甜菜作物产生负面影响.
生物炭如何影响土壤微生物和在土壤压力下发挥作用的机制尚未完全理解.

研究的目的:

调查生物炭添加如何影响甜菜根生理和根球微生物群落在存在fomesafen残留物.
为了阐明土壤微生物群对生物炭应用的塞芬毒性的功能反应.

主要方法:

植物生理学评估,以测量根生物质,甲酸含量和抗氧化酶活性.
安普利康测序和元基因组分析,以描述树根球微生物社区的结构,多样性和功能.
消毒土壤与正常土壤之间的比较,以确认微生物在生物炭减轻效应中的作用.

主要成果:

在Fomesafen压力下,生物炭增加了37.50%的甜菜根生物质,并提高了13.95%的土壤多功能性.
生物炭恢复了树枝球的真菌和细菌丰富性和多样性,并显著增加了潜在的除草剂降解细菌Dehalococcoidia.
甲基因组分析显示,生物炭增强了关键的代谢途径,包括卡尔文-本森-巴什姆循环,固定和酸盐运输.

结论:

生物炭通过增强土壤微生物和改善土壤功能,有效地减轻植物毒性.
生物炭的应用重新塑造了树根球微生物群,增加了植物的抗压能力,并保持了微生态平衡.
德哈洛科科迪亚的丰富程度可以作为在土壤生态系统中发现福梅萨芬残留物的生物标志物.

关键词:

除草剂降解降解的方法甲基基因组是指甲基因组中的一部分.分子生态网络分子生态网络.土壤微生物的多功能性

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