Degradation of atrazine in soil by Streptomyces.
Streptomyces sp. PS1/5 was able to degrade atrazine in soil while growing on a mixture of chitin and ground cornstalks as carbon and nitrogen source. The addition of triple superphosphate greatly stimulated the degradation of atrazine by Streptomyces sp. PS1/5, while the addition of lime stimulated the degradation to a lesser degree. Ferrous sulfate had a small positive effect on atrazine degradation. Atrazine in soil was reduced from 20 g g-1 dry soil (20 ppm) to 6 ppm within 30 days in soil amended with 8% chitin, 2% cornstalks and 0.1% triple superphosphate and incubated at 25 degrees C. The results indicate that it may be possible to use bacteria of the genus Streptomyces to degrade pesticide residues in contaminated soils.
Fadullon
F S
FS
Department of Civil Engineering, University of Maryland, College Park 20742, USA.
Karns
J S
JS
Torrents
A
A
D001280:Atrazine / Q000378:metabolism*; D001673:Biodegradation, Environmental; D002686:Chitin / Q000378:metabolism; D006540:Herbicides / Q000378:metabolism*; D010573:Pesticide Residues / Q000378:metabolism*; D012988:Soil Microbiology; D012989:Soil Pollutants / Q000378:metabolism*; D013302:Streptomyces / Q000378:metabolism*
D006540:Herbicides; D010573:Pesticide Residues; D012989:Soil Pollutants; D002686:Chitin; D001280:Atrazine