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Gideon O. Abu ;Ambiente & ÁguaAn Interdisciplinary Journal of Applied Science 2010, 5 (2)

Autor: Christopher E. Nwanyanwu

Fuente: http://www.redalyc.org/


Introducción



Ambiente & Água - An Interdisciplinary Journal of Applied Science ISSN: 1980-993X ambi-agua@agro.unitau.br Universidade de Taubaté Brasil Nwanyanwu, Christopher E.; Abu, Gideon O. In vitro effects of petroleum refinery wastewater on dehydrogenase activity in marine bacterial strains Ambiente & Água - An Interdisciplinary Journal of Applied Science, vol.
5, núm.
2, 2010, pp.
21-29 Universidade de Taubaté Taubaté, Brasil Available in: http:--www.redalyc.org-articulo.oa?id=92815026004 How to cite Complete issue More information about this article Journals homepage in redalyc.org Scientific Information System Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Non-profit academic project, developed under the open access initiative ISSN = 1980-993X – doi:10.4136-1980-993X www.ambi-agua.net E-mail: ambi-agua@agro.unitau.br Tel.: (12) 3625-4212 In vitro effects of petroleum refinery wastewater on dehydrogenase activity in marine bacterial strains (doi:10.4136-ambi-agua.133) Christopher E.
Nwanyanwu1; Gideon O.
Abu2 1 Department of Microbiology, Federal University of Technology, P.M.B.1526, Owerri, Imo State, Nigeria E-mail: cnwanyanwu2000@yahoo.com 2 Department of Microbiology, University of Port Harcourt, P.M.B.5323, Port Harcourt, Rivers State, Nigeria E-mail: gideonabu1@yahoo.com ABSTRACT Toxicity of oil refinery effluent on four bacteria strains isolated from refinery effluent impacted river water sample was assessed via dehydrogenase assay.
Pure cultures of the bacterial strains were exposed to various effluent concentrations [12.5 – 100% (v-v)] in a nutrient broth amended with glucose and TTC.
The response of the bacterial strains to refinery effluent is concentration-dependent.
At 12.5% (v-v), the effluent stimulated dehydrogenase activity in Streptococcus sp.
RW3 and Pseudomonas sp.
RW4.
In all strains, dehydrogenase activity was progressively inhibited at concentrations greater than 12.5% (v-v).
The IC50 ranges ...





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