Involvement of microorganisms in accelerated degradation of EPTC in soil
- Hebrew Univ. of Jerusalem, Rehovot (Israel)
- Volcani Center, Bet-Dagan (Israel)
Accelerated EPTC (S-ethyl dipropylcarbamothioate) degradation was confirmed in a mixed culture of microorganisms derived from a soil with enhanced degradation (history soil) by using {sup 14}C-labeled EPTC. The antibacterial agent chloramphenicol (D-({minus})-threo-2,2-dichloro-N-({beta}-hydroxy-{alpha}-(hydroxymethyl)-p-nitrophenethyl)acetamide) markedly suppressed {sup 14}CO{sub 2} evolution while the antifungal agent cycloheximide (4-((2R)-2((1S,3S,5S)-3,5-dimethyl-2-oxocyclohexyl)-2-hydroxyethyl)glutarimide) did not, suggesting that soil bacteria play a significant role in enhanced EPTC degradation. A fast EPTC bacterial degrader (FD1) strain and a slower one (SD1), which were isolated by a soil enrichment technique from a history soil, were capable of utilizing EPTC as a sole carbon source. Vernolate (S-propyl dipropylcarbamothioate), butylate (S-ethyl bis(2-methylpropyl)carbamothioate), or cycloate (S-ethyl cyclohexylethylcarbamothioate) were also degraded by these bacteria in a pattern similar to that in a soil with enhanced degradation. Inoculation of nonhistory soil with FD1 strain induced accelerated degradation of the herbicide in the soil at rates similar to those in field soils exhibiting EPTC accelerated degradation.
- OSTI ID:
- 6069070
- Journal Information:
- Journal of Agricultural and Food Chemistry; (USA), Vol. 38:4; ISSN 0021-8561
- Country of Publication:
- United States
- Language:
- English
Similar Records
Pesticide effects on the plant cuticle. IV. The effect of EPTC on the permeability of cabbage, bean, and sugar beet cuticle
Pesticide effects on the plant cuticle. III. EPTC effects on the qualitative composition of Brassica oleracea L. leaf cuticle
Related Subjects
60 APPLIED LIFE SCIENCES
HERBICIDES
BIODEGRADATION
SOILS
MICROORGANISMS
ANTIBIOTICS
CARBON 14
CYCLOHEXIMIDE
TRACER TECHNIQUES
ANTI-INFECTIVE AGENTS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CARBON ISOTOPES
CHEMICAL REACTIONS
DECOMPOSITION
DRUGS
EVEN-EVEN NUCLEI
FUNGICIDES
ISOTOPE APPLICATIONS
ISOTOPES
LIGHT NUCLEI
NUCLEI
PESTICIDES
RADIOISOTOPES
YEARS LIVING RADIOISOTOPES
550701* - Microbiology- Tracer Techniques
553003 - Agriculture & Food Technology- Pest & Disease Control- (1987-)