Effect of Metal Ions on the Molybdenum-Reducing Activity of S. marcescens strain DrY6

Authors

  • M.Y. Shukor Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, University Putra Malaysia, UPM 43400 Serdang, Selangor, Malaysia
  • N.A. Shamaan Faculty of Medicine and Health Sciences, Universiti Sains Islam Malaysia, 13th Floor, Menara B, Persiaran MPAJ, Jalan Pandan Utama, Pandan Indah, 55100 Kuala Lumpur, Malaysia
  • M.A. Syed Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, University Putra Malaysia, UPM 43400 Serdang, Selangor, Malaysia

DOI:

https://doi.org/10.54987/jemat.v1i1.17

Keywords:

Reduction; Molybdenum; Molybdenum blue; S. Marcescens; Heavy metals

Abstract

Microbial metal reduction of molybdenum to molybdenum blue can be used in the bioremediation of molybdenum contaminated environment. A molybdenum-reducing strain, S. marcescens strain Dr.Y6, was tested for its molybdenum-reduction capability in the presence of several metal ions such as Cr6+, Fe3+, Fe2+, Zn2+, Mg2+, Co2+,Ni2+,Cd2+, Ag+, Mn2+, Cu2+, Hg2+, Pb2+and Sn2+. Metal ions such as chromium, copper and mercury caused 88.4, 98.8 and 88.3% inhibition of the molybdenum-reducing activity, respectively, indicating the presence of a thiol group in the molybdenum-reducing enzyme of this bacterium. However, two ions, ferrous and stannous, markedly increased the activity of molybdenum-reducing activity in this bacterium in the control studies suggesting that these metal ions could produce false positive results and their use should be accompanied with proper control.

 

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Published

26.12.2013

How to Cite

Shukor, M., Shamaan, N., & Syed, M. (2013). Effect of Metal Ions on the Molybdenum-Reducing Activity of S. marcescens strain DrY6. Journal of Environmental Microbiology and Toxicology, 1(1), 5–8. https://doi.org/10.54987/jemat.v1i1.17

Issue

Vol. 1 No. 1 (2013)

Section

Articles

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