Journal article
Mathematical Modeling of RDX and HMX Metabolism in Poplar (Populus deltoides × Populus nigra, DN34) Tissue Culture
International journal of phytoremediation, Vol.6(4), pp.323-345
10/01/2004
DOI: 10.1080/16226510490888839
PMID: 15696705
Abstract
Three mathematical models were developed based on a fate study as an approach to define transformation pathways of hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) and octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX) within plant cells. [U-
14
C]RDX and [U-
14
C]HMX were added in Murashige and Skoog (MS) liquid media containing Populus deltoides × P. nigra (DN34) tissue cultures. Radioactivity of samples was analyzed using HPLC, a bio-oxidizer and liquid scintillation counter. Based on information collected, transformation pathways of nitramine compounds were fitted with the raw data obtained and using a modified "green liver" model. Ordinary differential equations were developed and simulations were performed with MicroMath Scientist version 2.0 (MicroMath Inc., St. Louis, MO, USA). The three models, with different sequential transformation processes, were tested in order to support the raw data (model I) and the assumptions of the modified "green liver" model (models II and III). The results showed a high correlation between the collected data and the simulated concentrations for all models. Thus, the simplest model developed (model I) is the best model description of these particular results. The results obtained suggest that the principle of parsimony should be applied. The "green liver"-based models also demonstrated a reliable approach for the investigation of degradation pathways of nitramines within plant cells.
Details
- Title: Subtitle
- Mathematical Modeling of RDX and HMX Metabolism in Poplar (Populus deltoides × Populus nigra, DN34) Tissue Culture
- Creators
- Melissa P Mezzari - Department of Civil and Environmental Engineering The University of IowaBenoit Van Aken - Department of Civil and Environmental Engineering The University of IowaJong M Yoon - Department of Civil and Environmental Engineering The University of IowaCraig L Just - Department of Civil and Environmental Engineering The University of IowaJerald L Schnoor - Department of Civil and Environmental Engineering The University of Iowa
- Resource Type
- Journal article
- Publication Details
- International journal of phytoremediation, Vol.6(4), pp.323-345
- Publisher
- Taylor & Francis Group
- DOI
- 10.1080/16226510490888839
- PMID
- 15696705
- ISSN
- 1522-6514
- eISSN
- 1549-7879
- Language
- English
- Date published
- 10/01/2004
- Academic Unit
- Civil and Environmental Engineering; Occupational and Environmental Health
- Record Identifier
- 9983997434902771
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