<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Duringer, Jennifer M</style></author><author><style face="normal" font="default" size="100%">Craig, A M</style></author><author><style face="normal" font="default" size="100%">Smith, David J</style></author><author><style face="normal" font="default" size="100%">Chaney, Rufus L</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Uptake and transformation of soil [14C]-trinitrotoluene by cool-season grasses.</style></title><secondary-title><style face="normal" font="default" size="100%">Environmental science &amp; technology</style></secondary-title><alt-title><style face="normal" font="default" size="100%">Environ. Sci. Technol.</style></alt-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Biodegradation, Environmental</style></keyword><keyword><style  face="normal" font="default" size="100%">Biotransformation</style></keyword><keyword><style  face="normal" font="default" size="100%">Carbon Radioisotopes</style></keyword><keyword><style  face="normal" font="default" size="100%">Cold Temperature</style></keyword><keyword><style  face="normal" font="default" size="100%">Poaceae</style></keyword><keyword><style  face="normal" font="default" size="100%">Seasons</style></keyword><keyword><style  face="normal" font="default" size="100%">Soil Pollutants</style></keyword><keyword><style  face="normal" font="default" size="100%">Trinitrotoluene</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2010</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2010 Aug 15</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">44</style></volume><pages><style face="normal" font="default" size="100%">6325-30</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">This study investigated the fate and uptake of [(14)C]-TNT from soil into orchardgrass (Dactylis glomerata), perennial ryegrass (Lolium perenne), and tall fescue (Festuca arundinacea) over a one year period in a greenhouse-controlled environment. Pots (n = 4 for each grass, containing 10 mg cold TNT/kg soil + 1.2 mg [(14)C]-TNT/kg soil and controls with no TNT) were exposed to light and temperature conditions typical of June at 45 degrees N for 369 days. Three plant harvests were made (63, 181, and 369 days), and soil and plant materials were monitored for [(14)C]-TNT and metabolite concentrations. The 11.2 mg/kg TNT dose was not phytotoxic to the plant species tested. Continual uptake of TNT into grass blades was observed over the one-year period, with a total accumulation of 1.3%, 0.9%, and 0.8% of the initial soil [(14)C]-TNT dose for orchard grass, perennial ryegrass, and tall fescue, respectively. All [(14)C]-TNT residue in plant material was incorporated as bound residue. At final harvest, radioactivity was concentrated most highly in the root &gt; crown &gt; blade for all species. Soil TNT was gradually reduced to aminodinitro-toluenes and then further to an unidentified metabolite(s). Overall, orchardgrass appeared to be the most efficient species at taking up TNT.</style></abstract><issue><style face="normal" font="default" size="100%">16</style></issue><custom1><style face="normal" font="default" size="100%">http://www.ncbi.nlm.nih.gov/pubmed/20666491?dopt=Abstract</style></custom1></record></records></xml>