Abstract
This research was carried out to determine the influence of biochar and compost addition on the characteristics of potential alkaline phosphatase (ALP) activity and phoD gene community in heavy metal polluted soils. The ALP activity, the abundance and structure of phoD gene were systematically determined. Results showed that biochar and compost significantly changed soil properties, and promoted the microbial transformation of phosphorus. Compost addition significantly increased the ALP activity. Biochar and compost addition markedly increased the phoD gene abundance. The addition of biochar increased the proportion of Actinobacteria, Euryarchaeota, and Proteobacteria. By contrast, Betaproteobacteria, Deltaproteobacteria, and Gammaproteobacteria were the dominant taxa in soils with compost addition. Electrical conductivity critically controlled the expression of phoD and changed the structure of phoD-coding microbial communities in heavy-metal polluted soils that remediated by biochar and compost.
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The authors would like to thank National Natural Science Foundation of China (No. U20A2086, and No. 51408219) and Hunan Agricultural University for their support of this research.
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Lu, H., Xu, C., Zhang, J. et al. The characteristics of alkaline phosphatase activity and phoD gene community in heavy-metal contaminated soil remediated by biochar and compost. Bull Environ Contam Toxicol 109, 298–303 (2022). https://doi.org/10.1007/s00128-022-03513-7
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DOI: https://doi.org/10.1007/s00128-022-03513-7