Biodegradation of 2,4-dinitrotoluene by different plant species

Nicotiana tabacum-associated bioengineered Pseudomonas putida can enhance rhizoremediation of soil containing 2,4-dinitrotoluene

“…Although there are some examples where plants are used alone for bioremediation of 2,4-DNT-contaminated soil, one of the major obstacles arising from the adoption of removing 2,4-DNT from polluted soil is due to the sensitivity of many plant species to 2,4-DNT, i.e. while some crop plants are sensitive to 1 mg/mL 2,4-DNT (Podlipná et al 2015), others are generally sensitive to lower concentrations such as 0.5 mg/mL (Remans et al 2012). Here, the maximum 2,4-DNT reduction (98.03%) was achieved with inoculated plants for 14 days in 1 mM of 2,4-DNT contaminated soil with no accumulation of intermediates because of the almost complete biotransformation of 2,4-DNT.…”

“…Here, the maximum 2,4-DNT reduction (98.03%) was achieved with inoculated plants for 14 days in 1 mM of 2,4-DNT contaminated soil with no accumulation of intermediates because of the almost complete biotransformation of 2,4-DNT. The slightly (1%) initial decrease in the concentration of 2.4-DNT in boxes containing N. tabacum and N. tabacum plants inoculated with KT2440 probably caused by abiotic factors, such as photolysis of 2,4-DNT with sunlight or absorption in the container walls (Gong et al 2016;Podlipná et al 2015). The fact that the rate of biotransformation did not change when the incubation time is extended to 3 weeks may be due to the adsorption of the remaining 2,4-DNT by the adventitious root system in soil (Pandey and Souza-Alonso 2019).…”

Bismuth titanate modified and immobilized TiO2 photocatalysts for water purification: broad pollutant scope, ease of re-use and mechanistic studies

“…49,50 Typically containing nitro groups, these molecules are resistant to standard oxidation processes due to the electron withdrawing nature of these substituents. 51 As such, two widely used explosives, trinitrotoluene (TNT) and nitrotriazolone (NTO), were chosen for study, with TNT being a known poison with hematological effects 52 and NTO exposure being suggested to cause reductions in sperm production in mammalian model studies. 53 The presence of pharmaceutical molecules in drinking water has been noted as an area of increasing concern in recent years.…”

Review of Nutraceutical Uses of an Antioxidant Sunflower Sprout, Helianthus Annuus

“…It also uses the other parts of this plant in the prevention of hepatic disease [28], nephrolithiasis [29], and heart disease [30]. Besides of the medicinal uses, the environmental protection by biodegradation [31] and phytoremediation was studied by this plant [32,33] and also in biodiesel production plant [34,35].…”