title: Influence of microbial community on degradation of flubendiamide in two Indian soils.
abstract: Degradation of flubendiamide as affected by microbial population count in two Indian soils (red and alluvial) varying in physicochemical properties was studied under sterile and non-sterile conditions. Recovery of flubendiamide in soil was in the range of 94.7-95.9 % at 0.5 and 1.0 μg g(-1), respectively. The DT50 of flubendiamide at the level of 10 μg g(-1) in red soil under sterile and non-sterile conditions was found to be 140.3 and 93.7 days, respectively, and in alluvial soil under sterile and non-sterile condition was 181.1 and 158.4 days, respectively. Residues of flubendiamide dissipated faster in red soil (non-sterile followed by sterile) as compared to alluvial (non-sterile soil followed by sterile soil). A wide difference in half-life of red and alluvial soil under sterile and non-sterile conditions indicated that the variation in physicochemical properties of red and alluvial soil as well as the presence of microbes play a great role for degradation of flubendiamide. The results revealed that slower-degrading alluvial soil possessed microbes with degradative capacity. The degradation rate in this soil was significantly reduced by some of its physicochemical characteristics, despite sterile and non-sterile conditions, which was faster in red soil.
authors.affiliation: Division of Agricultural Chemicals, Indian Agricultural Research Institute, New Delhi, India, 110012, shaon.iari@gmail.com.
authors.forename: Shaon Kumar
authors.initials: SK
authors.lastname: Das
authors.forename: Irani
authors.initials: I
authors.lastname: Mukherjee
mesh_terms: D001549:Benzamides / Q000032:analysis / Q000378:metabolism*; D001673:Biodegradation, Environmental; D004784:Environmental Monitoring; D006207:Half-Life; D007194:India; D012987:Soil / Q000737:chemistry*; D012988:Soil Microbiology; D012989:Soil Pollutants / Q000032:analysis / Q000378:metabolism*; D013450:Sulfones / Q000032:analysis / Q000378:metabolism*; D005466:Fluorocarbons; D010797:Phthalimides
chemical_list: D001549:Benzamides; D012987:Soil; D012989:Soil Pollutants; D013450:Sulfones; C508762:flubendiamide; D005466:Fluorocarbons; D010797:Phthalimides