NDLI: Biodegradation of atrazine in sand sediments and in a sand-filter

Content Provider	Springer Nature Link
Author	Goux, S. J. Ibanez, M. Van Hoorick, M. Debongnie, P. Agathos, S. N. Pussemier, L.
Copyright Year	2000
Abstract	The potential of a microbial consortium for treating waters contaminated with atrazine was considered. In conventional liquid culture, atrazine and its two dealkylated by-products were equally metabolised by the microbial consortium. Transient production of hydroxyatrazine was observed during atrazine catabolism, indicating that the catabolic pathway was similar to the one reported for isolates capable of atrazine mineralisation. This consortium was then inoculated to sediments sampled from an artificial recharge site. These sediments were contaminated by atrazine and diuron and exhibited only a slow endogenous herbicide dissipation. Inoculated microorganisms led to extensive atrazine degradation and survived for more than 10 weeks in the sediments. A rudimentary bioreactor was then setup using a soil core originating from the same recharge site. Degrading microorganisms rapidly colonised the core and expressed their degrading activity. The efficiency of the bioreactor was improved in the presence of spiked environmental surface waters. Atrazine degraders thus possibly benefited from the other organic sources in developing and expressing their activity. The microbial consortium did not initially exhibit the capacity to degrade diuron, which was used as reference compound. No change in this characteristic was detected throughout the study.
Starting Page	589
Ending Page	596
Page Count	8
File Format	PDF
ISSN	01757598
Journal	Applied Microbiology and Biotechnology
Volume Number	54
Issue Number	4
e-ISSN	14320614
Language	English
Publisher	Springer-Verlag
Publisher Date	2000-10-13
Publisher Place	Berlin, Heidelberg
Access Restriction	Subscribed
Content Type	Text
Resource Type	Article
Subject	Medicine Applied Microbiology and Biotechnology Biotechnology

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