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Microbial characteristics of purple paddy soil in response to Pb pollution

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dc.contributor.author Jiang, Qiu-Ju
dc.contributor.author Zhang, Yue-Qiang
dc.contributor.author Zhang, La-Mei
dc.contributor.author Zhou, Xin-Bin
dc.contributor.author Shi, Xiao-Jun
dc.date.accessioned 2023-01-20T06:00:04Z
dc.date.available 2023-01-20T06:00:04Z
dc.date.issued 2014-05-05
dc.identifier.citation Jiang, Q. J., Zhang, Y. Q., Zhang, L. M., Zhou, X. B., & Shi, X. J. (2014). Microbial characteristics of purple paddy soil in response to Pb pollution. Pakistan journal of pharmaceutical sciences, 27. en_US
dc.identifier.issn 1011-601X
dc.identifier.uri http://142.54.178.187:9060/xmlui/handle/123456789/16235
dc.description.abstract The study focused on the change of microbial characteristics affected by Plumbum pollution with purple paddy soil in an incubation experiment. The results showed that low concentration of Plumbum had little effect on most of microbial amounts, biological activity and enzymatic activity. However, denitrifying activity was inhibited severely, and inhibition rate was up to 98%. Medium and high concentration of Plumbum significantly reduced the amounts and activity of all microorganisms and enzymatic activity, which increased with incubation time. Negative correlations were found between Plumbum concentrations and microbial amounts, biological activity and enzymatic activities except fungi and actinomyces. Thus they can be used to indicate the Plumbum pollution levels to some extent. LD50 of denitrifying bacteria (DB) and ED50 of denitrifying activity were 852mg/kg and 33.5mg/kg. Across all test soil microbes, denitrifying bacteria was most sensitive to Plumbum pollution in purple paddy soil. Value of early warning showed that anaerobic cellulose-decomposing bacteria (ACDB) and actinomyces were also sensitive to Plumbum pollution. We concluded that denitrifying activity, actinomyces, ACDB or DB can be chosen as predictor of Plumbum contamination in purple paddy soil. en_US
dc.language.iso en en_US
dc.publisher Karachi: Faculty of Pharmacy & Pharmaceutical Sciences University of Karachi en_US
dc.subject Plumbum en_US
dc.subject microbial community en_US
dc.subject soil biological activity en_US
dc.subject purple paddy soil en_US
dc.title Microbial characteristics of purple paddy soil in response to Pb pollution en_US
dc.type Article en_US


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