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Ecological and laboratory studies on the role of luminous bacteria and their luminescence in coastal pollution surveillance

DRS at CSIR-National Institute of Oceanography

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Title Ecological and laboratory studies on the role of luminous bacteria and their luminescence in coastal pollution surveillance
 
Creator Ramaiah, N.
Chandramohan, D.
 
Subject experimental research
bacteria
luminous organisms
luminiscence
wastes
 
Description This study was aimed at finding out how bacterial bioluminescence, a trait very sensitive to toxicants, is affected in coastal environs which receive various types of effluents. For this, observations on occurrence and distribution of visibly luminous bacteria from both polluted and nonpolluted environments were documented during a 7 yr period. While luminous colonies were abundant, oftern contributing over 10% of the total colony-forming units in the pollutant free areas, none of over 200 water, sediment, fish, shellfish and plankton samples from the polluted localities yielded any visibly luminous colony. On analysing several bacterial strains originating from the latter environment, it was evident that there were many dark (nonvisibly luminous) strains of the usually luminescent Photobacterium leiognathi. Laboratory studies on the effect of various chemicals on light emission by different luminous species suggested a strong depression (and/or irreversible) of luminescence in them. Results of this study suggest that in addition to several advantages known with these bacteria, they are useful as biomarkers in the assessment of environmental health
 
Date 2009-05-06T10:31:12Z
2009-05-06T10:31:12Z
1993
 
Type Journal Article
 
Identifier Marine Pollution Bulletin, Vol.26; 190-201p.
http://drs.nio.org/drs/handle/2264/2795
 
Language en
 
Rights Copyright [1993]. All efforts have been made to respect the copyright to the best of our knowledge. Inadvertent omissions, if brought to our notice, stand for correction and withdrawal of document from this repository.
 
Publisher Pergamon