Campus Units
Entomology
Document Type
Article
Publication Version
Published Version
Publication Date
1987
Journal or Book Title
Journal of Agricultural and Food Chemistry
Volume
35
Issue
1
First Page
94
Last Page
99
DOI
10.1021/jf00073a022
Abstract
Laboratory experiments were conducted to investigate the enhanced degradation of isofenphos [ 1- methylethyl 24 [ethoxy[ (1-methylethyl)amino]phosphinothioyl]oxy] benzoate] in soil and to elucidate the microbiology of this phenomenon. [U-ring-'4CIIsofenphos was most rapidly degraded in Iowa cornfield soils that had a history of isofenphos insecticide use. Between 13 and 42% of an applied dose of 5 ppm remained as isofenphos after 4 weeks in soil with isofenphos use history, whereas between 63 and 75% remained in comparable nonhistory soils. Soils with enhanced isofenphos degradation contained an adapted population of soil microorganisms responsible for the degradation observed. Degradation products of isofenphos detected in cultures of adapted soil microorganisms included isopropyl salicylate, 14C02, and polar products. A bacterial strain (Pseudomonas sp.) isolated from soil with enhanced isofenphos degradation proved capable of utilizing isofenphos as a sole carbon source.
Copyright Owner
American Chemical Society
Copyright Date
1987
Language
en
File Format
application/pdf
Recommended Citation
Racke, Kenneth D. and Coats, Joel R., "Enhanced degradation of isofenphos by soil microorganisms" (1987). Entomology Publications. 389.
https://lib.dr.iastate.edu/ent_pubs/389
Included in
Entomology Commons, Environmental Microbiology and Microbial Ecology Commons, Food Microbiology Commons, Organismal Biological Physiology Commons, Plant Biology Commons
Comments
Reprinted (adapted) with permission from Journal of Agricultural and Food Chemistry, 35(1); 94-99. Doi: 10.1021/jf00073a022. 1987 American Chemical Society.