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ARS Home » Research » Publications at this Location » Publication #98776
Title: DYNAMIC SIMULATION MODEL FOR FOLIAR-APPLIED XENOBIOTIC UPTAKE AND TRANSLOCATION

Author
item SATCHIVI, NORBERT - UNIV OF ILLINOIS
item Stoller, Edward
item Wax, Loyd
item BRISKIN, DONALD - UNIV OF ILLINOIS

Submitted to: Weed Science Society of America Meeting Abstracts
Publication Type: Abstract Only
Publication Acceptance Date: 2/15/1999
Publication Date: N/A
Citation: N/A

Interpretive Summary:

Technical Abstract: Cuticular membrane permeation associated with phloem translocation and xenobiotic metabolism are important physical, physiological, and biochemical processes controlling the effectiveness of foliar-applied xenobiotics. These processes depend upon plant parameters, environmental factors and xenobiotics physicochemical properties. Xenobiotic structural properties required for cuticle penetration and vascular translocation constitute a source of interest for the development and synthesis of new xenobiotic molecules as well as for plant physiologists and biochemists involved in the development and discovery processes. Using the non-linear dynamic simulation model ERMESSE, developed and the University of Illinois, we investigated the impact of xenobiotic molar volume (MV), acid dissociation constant (pKa) and octanol/water partition coefficient (logKow) on the translocation of hypothetical xenobiotics. We also determined the range of xenobiotic physicochemical properties that provides better translocation.