Four emergent plants (helophytes, synonyms emersion macrophytes, marsh plants, etc.) Phragmites australis, Juncus glaucus, Carex gracillis and Typha latifolia were successfully used for degradation of TNT (2,4,6-trinitrotoluene) under in vitro conditions. The plants took up and transformed more than 90% of TNT from the medium within ten days of cultivation. The most efficient species was Ph. australis which took up 98% of TNT within ten days. The first stable degradation products 4-amino-2,6-dinitrotoluene (4-ADNT) and 2-amino-4,6-dinitrotoluene (2-ADNT) were identified and analysed during the cultivation period. [14C] TNT was used for the detection of TNT degradation products and their compartmentalization in plant tissues after two weeks of cultivation. Forty one percent of 14C was detected as insoluble or bound in cell structures: 34% in roots and 8% in the aerial parts. These results open the perspective of using the above-mentioned plants for the remediation of TNT contaminated waters.
- MeSH
- biodegradace MeSH
- chemické látky znečišťující vodu analýza metabolismus toxicita MeSH
- kořeny rostlin chemie metabolismus MeSH
- Magnoliopsida chemie růst a vývoj metabolismus MeSH
- nadzemní části rostlin chemie metabolismus MeSH
- radioizotopy uhlíku MeSH
- trinitrotoluen analýza metabolismus toxicita MeSH
- vysokoúčinná kapalinová chromatografie MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- srovnávací studie MeSH
- Názvy látek
- chemické látky znečišťující vodu MeSH
- radioizotopy uhlíku MeSH
- trinitrotoluen MeSH
