Bioaugmentation of Atrazine-Contaminated Soil With Paenarthrobacter sp. Strain AT-5 and Its Effect on the Soil Microbiome.
Bioaugmentation of Atrazine-Contaminated Soil With Paenarthrobacter sp. Strain AT-5 and Its Effect on the Soil Microbiome.
复制标题
用类芽孢杆菌对莠去津污染的土壤进行生物强化。
DOI：
10.3389/fmicb.2021.771463
复制
发表时间：
2021
影响因子：
5.2
通讯作者：
Xu X
中科院分区：
文献类型：
--
作者：
Jia W;Li N;Yang T;Dai W;Jiang J;Chen K;Xu X
阿特拉津是一种三嗪类除草剂，在世界范围内被广泛使用。莠去津在我国前茬作物玉米上的残留对后茬作物甘薯造成药害。利用阿特拉津降解菌对阿特拉津污染土壤进行生物强化被认为是去除阿特拉津最有潜力的方法。然而，生物强化的可行性及其对土壤微生物的影响仍需研究。将阿特拉津降解菌Paenarthrobacter sp. AT-5接种到阿特拉津污染的农田土壤中，研究其对阿特拉津的生物强化作用及其对土壤微生物群落的重组。结果表明，AT-5菌株接种7 d后，5 mg kg−1阿特拉津的去除率达95.9%，显著减轻了阿特拉津对甘薯的药害。qRT-PCR分析表明，接种菌株AT-5在土壤中存活良好，并保持相对较高的丰度。AT-5菌株的接种显著影响了土壤微生物群落结构，提高了阿特拉津降解相关细菌的丰度。
Atrazine, a triazine herbicide, is widely used around the world. The residue of atrazine due to its application in the fore-rotating crop maize has caused phytotoxicity to the following crop sweet potato in China. Bioaugmentation of atrazine-contaminated soil with atrazine-degrading strains is considered as the most potential method to remove atrazine from soil. Nevertheless, the feasibility of bioaugmentation and its effect on soil microbiome still need investigation. In this study, Paenarthrobacter sp. AT-5, an atrazine-degrading strain, was inoculated into agricultural soils contaminated with atrazine to investigate the bioaugmentation process and the reassembly of the soil microbiome. It was found that 95.9% of 5 mg kg−1 atrazine was removed from the soils when inoculated with strain AT-5 with 7 days, and the phytotoxicity of sweet potato caused by atrazine was significantly alleviated. qRT-PCR analysis revealed that the inoculated strain AT-5 survived well in the soils and maintained a relatively high abundance. The inoculation of strain AT-5 significantly affected the community structure of the soil microbiome, and the abundances of bacteria associated with atrazine degradation were improved.
登录
查看更多内容
影响因子：
12.8
作者：
Cerejeira, MJ;Viana, P;Silva-Fernandes, AM
通讯作者：
Silva-Fernandes, AM
影响因子：
4.2
作者：
Hernandez, Marcela;Jia, Zhongjun;Seeger, Michael
通讯作者：
Seeger, Michael
影响因子：
4.1
作者：
Brodkin, Marc A.;Madhoun, Hareth;Vatnick, Itzick
通讯作者：
Vatnick, Itzick
DOI：
10.1080/03601239809373128
发表时间：
1998-01-01
影响因子：
2
作者：
Fadullon, FS;Karns, JS;Torrents, A
通讯作者：
Torrents, A
影响因子：
48
作者：
Edgar, Robert C.
通讯作者：
Edgar, Robert C.