Record Details

Bacterial bioluminescence response to long-term exposure to reverse osmosis treated effluents from dye industries

DRS at CSIR-National Institute of Oceanography

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Title Bacterial bioluminescence response to long-term exposure to reverse osmosis treated effluents from dye industries
 
Creator Ravindran, J.
Manikandan, B.
Shirodkar, P.V.
Francis, K.X.
ManiMurali, R.
Vethamony, P.
 
Subject Bioluminescence,
Reverse Osmosis
lethal effect
pollution
 
Description The bacterial bioluminescence assay is one of the novel means for toxicity detection. The bioluminescence response of 2 marine bioluminescent bacteria was tested upon their long-term exposure to 9 different reverse osmosis (RO) rejects with varying chemical composition sampled from various dye industries. Bioluminescent bacteria were cultured in the RO reject samples, at different concentrations, and their growth rate and luminescence was measured for 24 h. The RO reject samples caused sublethal effects upon exposure and retarded the growth of bacteria, confirming their toxic nature. Further, continuation of the exposure showed that the initial luminescence, though reduced, recovered and increased beyond the control cultures irrespective of cell density, and finally decreased once again. The present study emphasizes the need of evolving a long-term exposure assay and shows that the method followed in this study is suitable to evaluate the toxicants that exert delayed toxicity, using lower concentrations of toxicants as well as coloured samples.
 
Date 2014-12-11T06:39:31Z
2014-12-11T06:39:31Z
2014
 
Type Journal Article
 
Identifier Canadian Journal of Microbiology, vol.60(10); 2014; 661-668
http://drs.nio.org/drs/handle/2264/4654
 
Language en
 
Rights ? NRC Research Press. All authors who publish in NRC Research Press journals may at any time in the publication process self-archive their submitted and/or accepted manuscript on their institution's Web site or in an open-access repository.
 
Publisher NRC Research Press