TY  - JOUR
AU  - Gao, Zixiang
AU  - Jiang, Yishun
AU  - Yin, Chang
AU  - Zheng, Wanning
AU  - Nikolić, Nina
AU  - Nikolic, Miroslav
AU  - Liang, Yongchao
PY  - 2022
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1538
AB  - Microbial mechanism of in-situ remediation of arsenic (As) in As-contaminated paddy fields by silicon (Si) fertilization has been rarely reported, especially under continuous rice cultivation and Si applications. In this study, two Si fertilizers were applied for three phases in five consecutive rice seasons to investigate the longlasting impacts on in-situ remediation of As, and the underpinning microbial mechanism of root-associated compartments (bulk soil, rhizosphere and endosphere) was explored using the last double-cropping rice. Repeated application of Si fertilizers as base manure had a long-lasting effect on reducing As concentrations in rice grains. Application of Si fertilizer at an adequate amount resulted in an extended in-situ remediation effect from endosphere to rhizosphere. The microbial diversity and richness in rhizosphere soil and endosphere were significantly impacted by Si fertilization, the effects depending on application doses and prolonged seasons. Si fertilization can immobilize As in the root or rhizosphere, and Fe concentrations and the As-and Fe-transforming microorganisms (i.e. Geobacteraceae) are the determinants of As uptake in rice. We recommend more extensive supplementation of Si fertilizer at a higher rate to decrease grain As concentration for in-situ remediation. This study sheds light on the microbial-mediated mechanism underlying Si fertilization effect on decreased As uptake in paddy fields.
PB  - Elsevier, Amsterdam
T2  - Journal of Hazardous Materials
T1  - Silicon fertilization influences microbial assemblages in rice roots and decreases arsenic concentration in grain: A five-season in-situ remediation field study
VL  - 423
DO  - 10.1016/j.jhazmat.2021.127180
ER  - 

@article{
author = "Gao, Zixiang and Jiang, Yishun and Yin, Chang and Zheng, Wanning and Nikolić, Nina and Nikolic, Miroslav and Liang, Yongchao",
year = "2022",
abstract = "Microbial mechanism of in-situ remediation of arsenic (As) in As-contaminated paddy fields by silicon (Si) fertilization has been rarely reported, especially under continuous rice cultivation and Si applications. In this study, two Si fertilizers were applied for three phases in five consecutive rice seasons to investigate the longlasting impacts on in-situ remediation of As, and the underpinning microbial mechanism of root-associated compartments (bulk soil, rhizosphere and endosphere) was explored using the last double-cropping rice. Repeated application of Si fertilizers as base manure had a long-lasting effect on reducing As concentrations in rice grains. Application of Si fertilizer at an adequate amount resulted in an extended in-situ remediation effect from endosphere to rhizosphere. The microbial diversity and richness in rhizosphere soil and endosphere were significantly impacted by Si fertilization, the effects depending on application doses and prolonged seasons. Si fertilization can immobilize As in the root or rhizosphere, and Fe concentrations and the As-and Fe-transforming microorganisms (i.e. Geobacteraceae) are the determinants of As uptake in rice. We recommend more extensive supplementation of Si fertilizer at a higher rate to decrease grain As concentration for in-situ remediation. This study sheds light on the microbial-mediated mechanism underlying Si fertilization effect on decreased As uptake in paddy fields.",
publisher = "Elsevier, Amsterdam",
journal = "Journal of Hazardous Materials",
title = "Silicon fertilization influences microbial assemblages in rice roots and decreases arsenic concentration in grain: A five-season in-situ remediation field study",
volume = "423",
doi = "10.1016/j.jhazmat.2021.127180"
}

Gao, Z., Jiang, Y., Yin, C., Zheng, W., Nikolić, N., Nikolic, M.,& Liang, Y.. (2022). Silicon fertilization influences microbial assemblages in rice roots and decreases arsenic concentration in grain: A five-season in-situ remediation field study. in Journal of Hazardous Materials
Elsevier, Amsterdam., 423.
https://doi.org/10.1016/j.jhazmat.2021.127180

Gao Z, Jiang Y, Yin C, Zheng W, Nikolić N, Nikolic M, Liang Y. Silicon fertilization influences microbial assemblages in rice roots and decreases arsenic concentration in grain: A five-season in-situ remediation field study. in Journal of Hazardous Materials. 2022;423.
doi:10.1016/j.jhazmat.2021.127180 .

Gao, Zixiang, Jiang, Yishun, Yin, Chang, Zheng, Wanning, Nikolić, Nina, Nikolic, Miroslav, Liang, Yongchao, "Silicon fertilization influences microbial assemblages in rice roots and decreases arsenic concentration in grain: A five-season in-situ remediation field study" in Journal of Hazardous Materials, 423 (2022),
https://doi.org/10.1016/j.jhazmat.2021.127180 . .