PMID- 24961069 OWN - NLM STAT- MEDLINE DCOM- 20140801 LR - 20240229 IS - 1061-4303 (Print) IS - 1061-4303 (Linking) VI - 86 IP - 5 DP - 2014 May TI - Phytoremediation of arsenic by Trapa natans in a hydroponic system. PG - 422-32 AB - Phytoremediation of arsenic (As) by water chestnut (Trapa natans) in a hydroponic system was studied. Plants were grown at two concentrations of arsenic, 1.28 mg/L and 10.80 mg/L, in a single metal solution. Scanning Electron Microscope-Energy Dispersive X-ray (SEM-EDX) confirmed highest arsenic concentration in the roots, followed by shoots and leaves. SEM-EDX also confirmed internalization of arsenic in T. natans and the damage caused due to arsenic exposure. Fourier Transform Infra Red Spectroscopy (FT-IRS) indicated that the binding characteristics of the arsenic ions involved the hydroxyl, amide, amino, and thiol groups in the biomass. Chlorophyll concentration decreased with increasing metal concentration and duration of exposure, but proline content increases with increasing concentration in the plant. Morphological changes were studied on the 3rd, 5th and 7th day. Unhealthy growth and chlorosis were found to be related with arsenic toxicity. From the above studies it is clear that T. natans can be used successfully for the removal of arsenic ions by a phytoremediation process. FAU - Baruah, Sangita AU - Baruah S FAU - Borgohain, Jayasree AU - Borgohain J FAU - Sarma, K P AU - Sarma KP LA - eng PT - Journal Article PL - United States TA - Water Environ Res JT - Water environment research : a research publication of the Water Environment Federation JID - 9886167 RN - N712M78A8G (Arsenic) RN - 1406-65-1 (Chlorophyll) RN - 9DLQ4CIU6V (Proline) RN - 0 (Water Pollutants, Chemical) SB - IM MH - *Arsenic/metabolism MH - Biodegradation, Environmental MH - Chlorophyll/analysis MH - *Hydroponics MH - Plant Leaves/metabolism MH - Plant Roots/metabolism MH - Proline/analysis MH - Spectroscopy, Fourier Transform Infrared MH - *Water Pollutants, Chemical/metabolism MH - *Lythraceae/metabolism EDAT- 2014/06/26 06:00 MHDA- 2014/08/01 06:00 CRDT- 2014/06/26 06:00 PHST- 2014/06/26 06:00 [entrez] PHST- 2014/06/26 06:00 [pubmed] PHST- 2014/08/01 06:00 [medline] AID - 10.2175/106143013x13807328849972 [doi] PST - ppublish SO - Water Environ Res. 2014 May;86(5):422-32. doi: 10.2175/106143013x13807328849972.