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Phytoremediation represents a promising and environmentally sustainable approach for the remediation of petroleum-contaminated soils. The effectiveness of plant-based remediation strategies is largel...y determined by the complex interactions among plants, rhizosphere microbial communities, and organic contaminants. This study assessed the Azotobacter sp. inoculation effect on the phytoremediation performance of Sorghum bicolor grown in petroleum- contaminated soil. A factorial experiment was conducted using a completely randomized design, incorporating treatments without inoculation and with inoculation of 1%, 2%, and 3% (v/wt.) Azotobacter sp. The findings revealed that 1% Azotobacter sp. inoculation significantly promoted sorghum plant height, while 2% Azotobacter sp. inoculation markedly enhanced petroleum hydrocarbon degradation efficiency, achieving 78.41%. Furthermore, 1% Azotobacter sp. inoculation was found to be compatible with the indigenous Petrobacter community, maintaining its population density. Azotobacter sp. supported petroleum biodegradation and promoting plant growth. Azotobacter sp. acts as both a biosurfactant-producing bacterium and a PGPR, further contributing to enhance phytoremediation efficiency.続きを見る
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Mendeley出力
2025_p0032