Selenium and Bacillus proteolyticus SES increased Cu-Cd-Cr uptake by ryegrass: highlighting the significance of key taxa and soil enzyme activity

Zhang, Huan; Nie, Min; Du, Xiaoping; Chen, Suhua; Liu, Hanliang; Wu, Chihhung; Tang, Yanni; Lei, Zheng; Shi, Guangyu; Zhao, Xiaohu

doi:10.1007/s11356-024-32959-x

Environ Sci Pollut Res

2024

DOI: 10.1007/s11356-024-32959-x

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Selenium and Bacillus proteolyticus SES increased Cu-Cd-Cr uptake by ryegrass: highlighting the significance of key taxa and soil enzyme activity

Huan Zhang,

Min Nie,

Xiaoping Du

et al.

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Cited by 2 publications

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Microbe-Plant Combined Remediation Technology for Heavy Metals in Soil: A Comprehensive Review

Dong,

Guo,

Lin

2024

Water Air Soil Pollut

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Microbe-Plant Combined Remediation Technology for Heavy Metals in Soil: A Comprehensive Review

Dong,

Guo,

Lin

2024

Water Air Soil Pollut

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Co-exposure impact of nickel oxide nanomaterials and Bacillus subtilis on soybean growth and nitrogen assimilation dynamics

Khan,

Li,

Khan

et al. 2024

Plant Physiology

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Nickel oxide nanoparticles (NiO-NPs) pose potential threats to agricultural production. Bacillus subtilis has emerged as a stress-mitigating microbe that alleviates the phytotoxicity caused by NiO-NPs. However, the mechanisms underlying its effectiveness, particularly in root-nodule symbiosis and biological N2-fixation (BNF), remain unclear. Here, we tested the combined exposure of NiO-NPs (50 mg kg−1) and B. subtilis on soybean (Glycine max L.) growth and BNF. Combined exposure increased root length, shoot length, root biomass, and shoot biomass by 19-26%, while Ni (200 mg kg−1) reduced them by 38--53% compared to the control. NiO-NPs at 100 and 200 mg kg−1 significantly (P < 0.05) reduced nodule formation by 16% and 58% and Nitrogen assimilation enzyme activities levels (UE, NR, HS, and GOGAT) by 13-57%. However, co-exposure with B. subtilis improved nodule formation by 22-44%. Co-exposure of NiO-NPs (200 mg kg−1) with B. subtilis increased POD, CAT, and GSH-Px activity levels by 20%, 16%, and 14% while reducing MDA (14%) and H₂O₂ (12%) levels compared to NiO-NPs alone. Additionally, co-exposure of NiO-NPs (100 and 200 mg kg−1) with B. subtilis enhanced the relative abundance of Stenotrophomonas, Gemmatimonas, and B. subtilis, is associated with N2-cycling and N2-fixation potential. This study confirms that B. subtilis effectively mitigates NiO-NP toxicity in soybean, offering a sustainable method to enhance BNF and crop growth and contribute to addressing global food insecurity.

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Selenium and Bacillus proteolyticus SES increased Cu-Cd-Cr uptake by ryegrass: highlighting the significance of key taxa and soil enzyme activity

Cited by 2 publications

References 91 publications

Microbe-Plant Combined Remediation Technology for Heavy Metals in Soil: A Comprehensive Review

Microbe-Plant Combined Remediation Technology for Heavy Metals in Soil: A Comprehensive Review

Co-exposure impact of nickel oxide nanomaterials and Bacillus subtilis on soybean growth and nitrogen assimilation dynamics

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