Degradation of geosmin-like compounds by selected species of gram-positive bacteria.
Biodegradation of geosmin produced by Streptomyces halstedii (A-1 strain) was investigated using seven Gram-positive bacteria. Bacterial action on the A-1 extract was followed at 15, 45 and 120 min. Bacillus cereus ssp. thuringiensis HD-1, B. cereus 3711 and B. cereus ssp. mycoides 4379 showed no effect. However, Arthrobacter atrocyaneus, Arth. globiformis, Chlorophenolicus N-1053 and Rhodococcus maris caused a colour change from blue to yellow (positive reaction). These data suggest that geosmin can be degraded by specific species of Gram-positive bacteria. Biodegradation of geosmin, which causes bad odour in drinking water, can be used as a new technology in water treatment.
Saadoun
I
I
Department of Biological Sciences, School of Science, Jordan University of Science and Technology, Irbid. isaadoun@just.edu.jo
el-Migdadi
F
F
D001673:Biodegradation, Environmental; D006094:Gram-Positive Bacteria / Q000378:metabolism*; D009284:Naphthols / Q000378:metabolism*; D009812:Odorants
D009284:Naphthols; C001278:geosmin