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Published on: February 8, 2019
Novel microbial technologies for optimizing maize plant-soil systems: the multifunctional strain Enterobacter sp. ES1
Yufeng Xiao1, Meiqi Dong1, Siya Wang1
1College of Plant Protection, Jilin Agricultural University, Changchun, China.
Background:
In recent years, a new microbial technology has emerged to optimize maize field productivity and soil health. This is crucial because of the adverse effects of pesticide contamination and diseases on maize yields.
Results:
Enterobacter sp. ES1, a multifunctional strain, effectively degraded 93.09% of nicosulfuron within 4 days. Optimal degradation occurred at 35 °C and pH 6.0, with 4% inoculum and 20 mg L-1 nicosulfuron. Strain ES1 could fix nitrogen and solubilize phosphorus and potassium. It also detoxified potassium and produced chrome azurol S and indole-3-acetic acid. Moreover, it promoted rapid maize seed germination, induced resistance to northern maize leaf blight, and up-regulated maize genes ZmOPR2, ZmPR5, ZmHPL, ZmOX10, ZmPAL, ZmPR1, ZmAOS, and ZmCTR1. Strain ES1R-gfp, prepared using green fluorescent protein and antibiotic domestication methods, functioned as a bacterial fertilizer with 31.04% sawdust, 32.96% straw, and 12.15% biochar, exhibiting a degradation rate of 99.65%.
Conclusion:
The novel microbial technology of the multifunctional strain ES1 was verified through a pot experiment assessing nicosulfuron concentration and plant and soil indices, thereby providing a foundation for optimizing maize field restoration. © 2025 Society of Chemical Industry.
