Abstract
Soil is a complex ecosystem with defined microbial community signatures, modulated by the interaction between biotic and abiotic factors. Amidst biotic factors, land usage have significant impact onto the soil microbial structure and ecosystem functioning. In the current study, metagenomic approach was used to decipher effect of hospital settings on soil microbiome structure and physiological functions. Physico-chemical properties analysis revealed that key elements for maintenance of soil microflora, such as organic carbon, nitrogen, phosphorus and sulfur were relatively diminished within hospital soil, compared to garden soil. Comparative microbial diversity analysis with 97,315 SSU rRNA gene sequences generated from both the soil samples highlight relatively low microbial diversity, with an enrichment for Acidobacteria and Bacteroidetes and decreased Proteobacteria/Acidobacteria ratio. Comparative shotgun metagenome sequence analysis further revealed a shift in the physiological role of soil microbiomes with change in soil usage. Genes for carbohydrate, sulfur, potassium and nitrogen metabolism were significantly (q value <0.05) higher in the garden soil; while the genes for phage, plasmid DNA, transposon and aromatic compound metabolism were significantly enriched within hospital soil. Thus, the current study highlights a correlation between soil biochemistry and microbial ecology based on land usage.
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Acknowledgements
This work was supported by Counsil of Scientific and Industrial Research sponsored research Scheme [60(0099)/11/EMRII] and University Grants Commission[41-1256/2012 SR]. Dr Manu Bhambi and Dr Manoj Kumar thanks Department of Biotechnology (DBT, Govt. of India) and Department of Science and Technology (DST,Govt. of India), for their fellowships.
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Gupta, S., Kumar, M., Kumar, J. et al. Systemic analysis of soil microbiome deciphers anthropogenic influence on soil ecology and ecosystem functioning. Int. J. Environ. Sci. Technol. 14, 2229–2238 (2017). https://doi.org/10.1007/s13762-017-1301-7
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DOI: https://doi.org/10.1007/s13762-017-1301-7