Microbial metabolism of homocyclic and heterocyclic aromatic compounds under anaerobic conditions.

INTRODUCTION....................................................................... 43 ANAEROBIC MICROBIAL PROCESSES ....................................................................... 43 Microbial Diversity......... 0 43 Representative Degradative Pathways of Aromatic Compounds under Anaerobic Conditions ...............44 METABOLISM OF HOMOCYCLIC AROMATIC COMPOUNDS UNDER ANAEROBIC CONDITIONS ........................................................................ 45 Anaerobic Photometabolism ....................................................................... 45 Catabolism by Denitrifying Microorganisms ....................................................................... 46 Fermentation........................................................................48 Catabolism by Sulfate-Reducing Microorganisms.................................... p 48 Metabolism under Methanogenic Conditions.................................... 49 Summary..... .... ..........................53 METABOLISM OF HETEROCYCLIC AROMATIC COMPOUNDS UNDER ANAEROBIC CONDITIONS.................. . 52 AnaerobicPhotoreduction. ..................52 Fermentation ...................................................................................... 52 Metabolism by Sulfate-Reducing Microorganisms .................................... , 54 Metabolism under Methanogenic Conditions.................................... 54 Summary....................................55 IN SITU BIODEGRADATION OF AROMATIC COMPOUNDS IN ANAEROBIC SUBSURFACE ENVIRONMENTS. ......................................55 CONCLUSIONS..................................... 56 ACKNOWLEDGMENTS. ...... ............................... 56 LITERATURE CITED ...................................... , 56