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אסיף מאגר המחקר החקלאי
פותח על ידי קלירמאש פתרונות בע"מ -
Involvement of fungi and bacteria in enhanced and nonenhanced biodegradation of carbendazim and other benzimidazole compounds in soil
Year:
1990
Source of publication :
Canadian Journal of Microbiology
Authors :
אהרונסון, נדב
;
.
סלומון, רפי
;
.
Volume :
36
Co-Authors:
Yarden, O., Dept. Plant Pathol./Microbiol., Faculty of Agriculture, Hebrew University of Jerusalem, Rehovot 76100, Israel
Salomon, R., Dept. Plant Pathol./Microbiol., Faculty of Agriculture, Hebrew University of Jerusalem, Rehovot 76100, Israel
Katan, J., Dept. Plant Pathol./Microbiol., Faculty of Agriculture, Hebrew University of Jerusalem, Rehovot 76100, Israel
Aharonson, N., Dept. Plant Pathol./Microbiol., Faculty of Agriculture, Hebrew University of Jerusalem, Rehovot 76100, Israel
Facilitators :
From page:
15
To page:
23
(
Total pages:
9
)
Abstract:
The relationship between chemical structure and the enhancement of microbial degradation of three benzimidazole compounds in soil was determined. Preapplication of methyl benzimidazole-2-ylcarbamate (carbendazim or MBC), 2-aminobenzimidazole (2AB), and benzimidazole enhanced their degradation upon repeated application (self-enhanced degradation). MBC and 2AB cross-enhanced the degradation of each of these two compounds, whereas benzimidazole did not enhance the degradation of MBC. Thiabendazole (TBZ) did not enhance its own degradation or cross-enhance the degradation of MBC. No increase in the number of MBC-degrading fungi or in the capacity of soilborne fungi to degrade MBC was detected in soil exhibiting enhanced MBC degradation (MBC-history). A sharp increase in esterolytic activity in the microsomal fraction of Alternaria alternata capable of degrading MBC in culture was induced by the presence of MBC in the growth medium. 2AB was the main metabolite of MBC that accumulated in A. alternata cultures and in cell-free preparations. MBC was degraded much faster by mixed bacterial cultures that originated from MBC-history soil than in cultures from MBC-nonhistory soil. Fluctuations in the MBC degrading capacity of mixed bacterial cultures occurred during repeated subculturing of the mixed culture. Inoculation of nonhistory soil with mixed bacterial cultures resulted in enhanced MBC degradation, whereas inoculation with A. alternata did not enhance MBC degradation. It is suggested that while fungi contribute to MBC dissipation in soil, bacteria have a greater role in enhanced biodegradation of MBC in soil.
Note:
Related Files :
Alternaria
antifungal activity
Biodegradation
Carbendazim
fungi
Fungicides, Industrial
Mitosporic Fungi
עוד תגיות
תוכן קשור
More details
DOI :
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
30431
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:54
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Scientific Publication
Involvement of fungi and bacteria in enhanced and nonenhanced biodegradation of carbendazim and other benzimidazole compounds in soil
36
Yarden, O., Dept. Plant Pathol./Microbiol., Faculty of Agriculture, Hebrew University of Jerusalem, Rehovot 76100, Israel
Salomon, R., Dept. Plant Pathol./Microbiol., Faculty of Agriculture, Hebrew University of Jerusalem, Rehovot 76100, Israel
Katan, J., Dept. Plant Pathol./Microbiol., Faculty of Agriculture, Hebrew University of Jerusalem, Rehovot 76100, Israel
Aharonson, N., Dept. Plant Pathol./Microbiol., Faculty of Agriculture, Hebrew University of Jerusalem, Rehovot 76100, Israel
Involvement of fungi and bacteria in enhanced and nonenhanced biodegradation of carbendazim and other benzimidazole compounds in soil
The relationship between chemical structure and the enhancement of microbial degradation of three benzimidazole compounds in soil was determined. Preapplication of methyl benzimidazole-2-ylcarbamate (carbendazim or MBC), 2-aminobenzimidazole (2AB), and benzimidazole enhanced their degradation upon repeated application (self-enhanced degradation). MBC and 2AB cross-enhanced the degradation of each of these two compounds, whereas benzimidazole did not enhance the degradation of MBC. Thiabendazole (TBZ) did not enhance its own degradation or cross-enhance the degradation of MBC. No increase in the number of MBC-degrading fungi or in the capacity of soilborne fungi to degrade MBC was detected in soil exhibiting enhanced MBC degradation (MBC-history). A sharp increase in esterolytic activity in the microsomal fraction of Alternaria alternata capable of degrading MBC in culture was induced by the presence of MBC in the growth medium. 2AB was the main metabolite of MBC that accumulated in A. alternata cultures and in cell-free preparations. MBC was degraded much faster by mixed bacterial cultures that originated from MBC-history soil than in cultures from MBC-nonhistory soil. Fluctuations in the MBC degrading capacity of mixed bacterial cultures occurred during repeated subculturing of the mixed culture. Inoculation of nonhistory soil with mixed bacterial cultures resulted in enhanced MBC degradation, whereas inoculation with A. alternata did not enhance MBC degradation. It is suggested that while fungi contribute to MBC dissipation in soil, bacteria have a greater role in enhanced biodegradation of MBC in soil.
Scientific Publication
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