Biodegradation of chlorothalonil in soil after suppression of degradation
| Autor: | K. Motonaga, S. Matumoto, Kazuhiro Takagi |
|---|---|
| Rok vydání: | 1996 |
| Předmět: |
Chlorothalonil
biology Soil biology Soil Science Mineralogy Cometabolism Biodegradation Phytopharmacology biology.organism_classification Microbiology Chloride chemistry.chemical_compound chemistry Environmental chemistry medicine Degradation (geology) Agronomy and Crop Science Bacteria medicine.drug |
| Zdroj: | Biology and Fertility of Soils. 23:340-345 |
| ISSN: | 1432-0789 0178-2762 |
| DOI: | 10.1007/bf00335964 |
| Popis: | the degradation rate of chlorothalonil (2,4,5,6-tetrachloroisophthalonitrile) was significantly decreased after repeated application in field experiments. However, the degradation rate completely recovered after further application of chlorothalonil. Chlorothalonil was also degraded in a laboratory study, forming a stoichiometric amount of chloride anion. 4-Hydroxy-2,5,6-trichloroisophthalonitrile (TPN-OH) was also detected as a metabolite in the study. Bacterial which degrade chlorothalonil rapidly were isolated from the soil. The cell suspension of the bacteria transformed chlorothalonil to TPN-OH and chloride anion, but did not utilize chlorothalonil (=cometabolism). It seems that microbial acclimation has occurred during repeated application because the bacteria could not be detected in soil which was not treated with chlorothalonil. |
| Databáze: | OpenAIRE |
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