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J. Bacteriol., 05 1997, 3368-3370, Vol 179, No. 10
Copyright © 1997, American Society for Microbiology

Dechlorination of lindane by the cyanobacterium Anabaena sp. strain PCC7120 depends on the function of the nir operon

T Kuritz, LV Bocanera and NS Rivera
Life Sciences Division, Oak Ridge National Laboratory, Tennessee 37830, USA. kuritzt@ornl.gov

Nitrate is essential for lindane dechlorination by the cyanobacteria Anabaena sp. strain PCC7120 and Nostoc ellipsosporum, as it is for dechlorination of other organic compounds by heterotrophic microorganisms. Based on analyses of mutants and effects of environmental factors, we conclude that lindane dechlorination by Anabaena sp. requires a functional nir operon that encodes the enzymes for nitrate utilization.




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