Microcalorimetric study the toxic effect of hexavalent chromium on microbial activity of Wuhan brown sandy soil: An in vitro approach

Jun Yao; Lin Tian; Yanxin Wang; Atakora Djah; Fei Wang; Huilun Chen; Chunli Su; Rensheng Zhuang; Yong Zhou; Martin M.F. Choi; Emilia Bramanti

doi:10.1016/j.ecoenv.2007.02.005

Microcalorimetric study the toxic effect of hexavalent chromium on microbial activity of Wuhan brown sandy soil: An in vitro approach

Jun Yao^*, Lin Tian, Yanxin Wang, Atakora Djah, Fei Wang, Huilun Chen, Chunli Su, Rensheng Zhuang, Yong Zhou, Martin M.F. Choi, Emilia Bramanti

^*Corresponding author for this work

Department of Chemistry

Research output: Contribution to journal › Journal article › peer-review

62 Citations (Scopus)

Abstract

A multi-channel thermal activity monitor was applied to study soil microbial activity in Wuhan brown sandy soil in the presence of different concentrations of hexavalent chromium (K₂ Cr₂ O₇). In order to stimulate the soil microbial activity, 5.0 mg of glucose and 5.0 mg of ammonium sulfate were added to a 1.20-g soil sample under a controlled humidity of 35%. The results show that the poisonous species of K₂ Cr₂ O₇ at an half inhibitory concentration (IC₅₀) value of 4.27 μ g mL^{- 1} against soil microbe, and an increase of the amount of hexavalent chromium is associated to a decrease in the microbial activity of the soil, probably due to an increase in the toxicity of hexavalent chromium, affecting strongly the life in this soil microbial environment. Our work also suggests that microcalorimetry is a fast, simple and more sensitive method that can be easily performed to study the toxicity of different species of heavy metals on microorganism compared to other biological methods.

Original language	English
Pages (from-to)	289-295
Number of pages	7
Journal	Ecotoxicology and Environmental Safety
Volume	69
Issue number	2
DOIs	https://doi.org/10.1016/j.ecoenv.2007.02.005
Publication status	Published - Feb 2008

User-Defined Keywords

Hexavalent chromium
Microcalorimetry
Soil microbial activity

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10.1016/j.ecoenv.2007.02.005

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title = "Microcalorimetric study the toxic effect of hexavalent chromium on microbial activity of Wuhan brown sandy soil: An in vitro approach",

abstract = "A multi-channel thermal activity monitor was applied to study soil microbial activity in Wuhan brown sandy soil in the presence of different concentrations of hexavalent chromium (K2 Cr2 O7). In order to stimulate the soil microbial activity, 5.0 mg of glucose and 5.0 mg of ammonium sulfate were added to a 1.20-g soil sample under a controlled humidity of 35%. The results show that the poisonous species of K2 Cr2 O7 at an half inhibitory concentration (IC50) value of 4.27 μ g mL- 1 against soil microbe, and an increase of the amount of hexavalent chromium is associated to a decrease in the microbial activity of the soil, probably due to an increase in the toxicity of hexavalent chromium, affecting strongly the life in this soil microbial environment. Our work also suggests that microcalorimetry is a fast, simple and more sensitive method that can be easily performed to study the toxicity of different species of heavy metals on microorganism compared to other biological methods.",

keywords = "Hexavalent chromium, Microcalorimetry, Soil microbial activity",

author = "Jun Yao and Lin Tian and Yanxin Wang and Atakora Djah and Fei Wang and Huilun Chen and Chunli Su and Rensheng Zhuang and Yong Zhou and Choi, {Martin M.F.} and Emilia Bramanti",

note = "Funding Information: This work described in this paper was supported in part by grants from the Sino–Italian Governmental International Science and Technology Cooperation Project (BI-CN/06-07/04 and No. Annex 2-3/2006), National Natural Science Foundation of China (No. 40673065 and No. 40425001), the Specialized Research Fund for the Doctoral Program of Higher Education (20060491508), the Hubei Key International Cooperation Project (2006CA007), the Key Project of Chinese Ministry of Education (107077). ",

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doi = "10.1016/j.ecoenv.2007.02.005",

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T1 - Microcalorimetric study the toxic effect of hexavalent chromium on microbial activity of Wuhan brown sandy soil

T2 - An in vitro approach

AU - Yao, Jun

AU - Tian, Lin

AU - Wang, Yanxin

AU - Djah, Atakora

AU - Wang, Fei

AU - Chen, Huilun

AU - Su, Chunli

AU - Zhuang, Rensheng

AU - Zhou, Yong

AU - Choi, Martin M.F.

AU - Bramanti, Emilia

N1 - Funding Information: This work described in this paper was supported in part by grants from the Sino–Italian Governmental International Science and Technology Cooperation Project (BI-CN/06-07/04 and No. Annex 2-3/2006), National Natural Science Foundation of China (No. 40673065 and No. 40425001), the Specialized Research Fund for the Doctoral Program of Higher Education (20060491508), the Hubei Key International Cooperation Project (2006CA007), the Key Project of Chinese Ministry of Education (107077).

PY - 2008/2

Y1 - 2008/2

N2 - A multi-channel thermal activity monitor was applied to study soil microbial activity in Wuhan brown sandy soil in the presence of different concentrations of hexavalent chromium (K2 Cr2 O7). In order to stimulate the soil microbial activity, 5.0 mg of glucose and 5.0 mg of ammonium sulfate were added to a 1.20-g soil sample under a controlled humidity of 35%. The results show that the poisonous species of K2 Cr2 O7 at an half inhibitory concentration (IC50) value of 4.27 μ g mL- 1 against soil microbe, and an increase of the amount of hexavalent chromium is associated to a decrease in the microbial activity of the soil, probably due to an increase in the toxicity of hexavalent chromium, affecting strongly the life in this soil microbial environment. Our work also suggests that microcalorimetry is a fast, simple and more sensitive method that can be easily performed to study the toxicity of different species of heavy metals on microorganism compared to other biological methods.

AB - A multi-channel thermal activity monitor was applied to study soil microbial activity in Wuhan brown sandy soil in the presence of different concentrations of hexavalent chromium (K2 Cr2 O7). In order to stimulate the soil microbial activity, 5.0 mg of glucose and 5.0 mg of ammonium sulfate were added to a 1.20-g soil sample under a controlled humidity of 35%. The results show that the poisonous species of K2 Cr2 O7 at an half inhibitory concentration (IC50) value of 4.27 μ g mL- 1 against soil microbe, and an increase of the amount of hexavalent chromium is associated to a decrease in the microbial activity of the soil, probably due to an increase in the toxicity of hexavalent chromium, affecting strongly the life in this soil microbial environment. Our work also suggests that microcalorimetry is a fast, simple and more sensitive method that can be easily performed to study the toxicity of different species of heavy metals on microorganism compared to other biological methods.

KW - Hexavalent chromium

KW - Microcalorimetry

KW - Soil microbial activity

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Microcalorimetric study the toxic effect of hexavalent chromium on microbial activity of Wuhan brown sandy soil: An in vitro approach

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