Effect of Heavy Metals on Cyanide Biodegradation by Resting Cells of Serratia marcescens strain AQ07

Authors

  • Karamba Kabiru Ibrahim Department of Microbiology, Faculty of Science, Bauchi State University, Gadau Main Campus, Bauchi State, Nigeria.
  • M.A. Syed Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, University Putra Malaysia, UPM 43400 Serdang, Selangor, Malaysia
  • M.Y. Shukor Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, University Putra Malaysia, UPM 43400 Serdang, Selangor, Malaysia
  • Siti Aqlima Ahmad Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, University Putra Malaysia, UPM 43400 Serdang, Selangor, Malaysia

DOI:

https://doi.org/10.54987/jemat.v2i2.192

Keywords:

heavy metals, biodegradation, Serratia marcescens, resting cells, potassium cyanide

Abstract

Effect of heavy metals was tested on Serratia marcescens strain AQ07 (accession number: KP213291) to affirm its effect on growth and biodegradation of cyanide. 1 ppm of ten different heavy metals was experimented in-vitro in buffer medium containing 200 ppm potassium cyanide. They are: silver, arsenic, cadmium, cobalt, chromium, cupper, mercury, nickel, lead and zinc. The results obtained illustrates that mercury have significant effect on the growth (optical density 0.13) and biodegradation of cyanide removing only 24.7% compared to the control which has no incorporation of heavy metal (optical density 0.74 and 92% removal respectively) while others remove above 80%. Further studies on mercury reveal that it has significant effect on the bacteria even as low as 0.1 ppm. This illustrates that mercury can significantly hinder biodegradation of cyanide by Serratia marcescens strain AQ07.

Author Biography

Karamba Kabiru Ibrahim, Department of Microbiology, Faculty of Science, Bauchi State University, Gadau Main Campus, Bauchi State, Nigeria.

Department of Biochemistry

Downloads

Published

30.12.2014

How to Cite

Ibrahim, K. K., Syed, M., Shukor, M., & Ahmad, S. A. (2014). Effect of Heavy Metals on Cyanide Biodegradation by Resting Cells of Serratia marcescens strain AQ07. Journal of Environmental Microbiology and Toxicology, 2(2), 58–60. https://doi.org/10.54987/jemat.v2i2.192

Issue

Vol. 2 No. 2 (2014)

Section

Articles

License

Authors who publish with this journal agree to the following terms:

  1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0) that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
  2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
  3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).