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קהילה:
אסיף מאגר המחקר החקלאי
פותח על ידי קלירמאש פתרונות בע"מ -
Biodegradation process and the nature of metabolism of metalaxyl in soil
Year:
1991
Source of publication :
Annals of Applied Biology
Authors :
דרובי, סמיר
;
.
Volume :
118
Co-Authors:
DROBY, S., Department of Plant Pathology, University of California,Riverside, California, United States
COFFEY, M.D., Department of Plant Pathology, University of California,Riverside, California, United States
Facilitators :
From page:
543
To page:
553
(
Total pages:
11
)
Abstract:
The enhanced biodegradation of metalaxyl was studied in tobacco, citrus, avocado and corn soils. The most rapid degradation of metalaxyl occurred in a tobacco soil in which the half‐life (50% degradation) of metalaxyl was 6 days. The main breakdown product of metalaxyl in all soils was the acid metabolite. Ring labelled [14C]metalaxyl incubated for 4 wk in 6 soils demonstrated a low rate of 14CO2 evolution ranging from 2.1% to 11.3% which was unrelated to the biodegradation properties of the soil. A relationship between the concentration of metalaxyl and the subsequent rate of biodegradation was found in the tobacco soils. Higher concentrations of metalaxyl resulted in faster biodegradation rates. A single exposure of tobacco and corn soils to metalaxyl (100 μg/ml or 200 μg/g dry weight of soil) significantly increased their subsequent capacity to degrade the fungicide. Addition of the fungicide thiram or the antibiotics streptomycin and chloramphenicol to an avocado soil resulted in 75% and 51% inhibition of metalaxyl degradation, respectively. A combination of the fungicide and antibiotics resulted in 89% inhibition. The results indicate that enhanced microbial degradation of metalaxyl can occur in a wide range of soils. Under experimental conditions using soil solutions or soil systems, a single application of the fungicide may trigger this event. A wide range of fungi and bacteria appear to take part in degrading metalaxyl. Copyright © 1991, Wiley Blackwell. All rights reserved
Note:
Related Files :
bacteria
Biodegradation
fungi
metabolism
metalaxyl
soil
עוד תגיות
תוכן קשור
More details
DOI :
10.1111/j.1744-7348.1991.tb05344.x
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
25196
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:13
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Scientific Publication
Biodegradation process and the nature of metabolism of metalaxyl in soil
118
DROBY, S., Department of Plant Pathology, University of California,Riverside, California, United States
COFFEY, M.D., Department of Plant Pathology, University of California,Riverside, California, United States
Biodegradation process and the nature of metabolism of metalaxyl in soil
The enhanced biodegradation of metalaxyl was studied in tobacco, citrus, avocado and corn soils. The most rapid degradation of metalaxyl occurred in a tobacco soil in which the half‐life (50% degradation) of metalaxyl was 6 days. The main breakdown product of metalaxyl in all soils was the acid metabolite. Ring labelled [14C]metalaxyl incubated for 4 wk in 6 soils demonstrated a low rate of 14CO2 evolution ranging from 2.1% to 11.3% which was unrelated to the biodegradation properties of the soil. A relationship between the concentration of metalaxyl and the subsequent rate of biodegradation was found in the tobacco soils. Higher concentrations of metalaxyl resulted in faster biodegradation rates. A single exposure of tobacco and corn soils to metalaxyl (100 μg/ml or 200 μg/g dry weight of soil) significantly increased their subsequent capacity to degrade the fungicide. Addition of the fungicide thiram or the antibiotics streptomycin and chloramphenicol to an avocado soil resulted in 75% and 51% inhibition of metalaxyl degradation, respectively. A combination of the fungicide and antibiotics resulted in 89% inhibition. The results indicate that enhanced microbial degradation of metalaxyl can occur in a wide range of soils. Under experimental conditions using soil solutions or soil systems, a single application of the fungicide may trigger this event. A wide range of fungi and bacteria appear to take part in degrading metalaxyl. Copyright © 1991, Wiley Blackwell. All rights reserved
Scientific Publication
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