Phytoremediation of fluoride with garden ornamentals Nerium oleander, Portulaca oleracea, and Pogonatherum crinitum

• Published in: Environmental science and pollution research international 2017-03, Vol.24 (7), p.6833-6839
• Main Authors: Khandare, Rahul V., Desai, Shaileshkumar B., Bhujbal, Sourabh S., Watharkar, Anuprita D., Biradar, Shivtej P., Pawar, Pankaj K., Govindwar, Sanjay P.
• Format: Article
• Language: English
• Subjects: Aquatic Pollution; Atmospheric Protection/Air Quality Control/Air Pollution; Bioaccumulation; Biodegradation, Environmental; Biomass; Bioremediation; Bones; Carbohydrates; Catalase - metabolism; Chlorophyll - metabolism; Earth and Environmental Science; Ecotoxicology; Environment; Environmental Chemistry; Environmental Health; Environmental science; Enzymes; Flowers & plants; Fluorides; Fluorides - analysis; Fluorides - metabolism; Leaves; Nerium - metabolism; Nerium oleander; Oxidative Stress; Phytoremediation; Plant Leaves - metabolism; Plant Proteins - metabolism; Plant Roots - metabolism; Plant species; Poaceae - metabolism; Portulaca - metabolism; Portulaca oleracea; Reagents; Roots; Short Research and Discussion Article; Soil contamination; Studies; Translocation; Waste Water Technology; Water Management; Water Pollutants, Chemical - analysis; Water Pollutants, Chemical - metabolism; Water Pollution Control
• ISSN: 0944-1344; 1614-7499
• DOI: 10.1007/s11356-017-8424-8

Nursery grown plants of Nerium oleander , Pogonatherum crinitum , and Portulaca oleracea were observed to remove fluoride up to 92, 80, and 73%, respectively, from NaF solution at the concentration of 10 mg L −1 within 15 days. Concentration range of 10–50 mg L −1 of fluoride revealed a constant decrease of removal from 92 to 51% within 15 days by N. oleander , while the biomass (one to five plants) showed enhancement in removal from 74 to 98% in 10 days. Translocation and bioaccumulation factors calculated after fluoride contents in roots and leaves of N. oleander , P. crinitum , and P. oleracea were 1.85, 1.19, and 1.43, and 9.8, 3.6, and 2.2, respectively. P . oleracea , P. crinitum , and N. oleander showed reductions in chlorophyll contents by 40, 57 and 25 and 8%, carbohydrates by 50, 44, and 16%, and proteins by 38, 53, and 15%, respectively. Activities of superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GPX) in the roots of P. oleracea , P. crinitum , and N. oleander were observed to be induced by 400, 383, and 500%; 80, 105, and 424%; and 153, 77, and 71%, respectively, while the leaves showed induction in SOD, CAT, and GPX activities by 550, 315, and 165%; 196, 227, and 243%; and 280, 242, and 184%, respectively. Results endorsed the superiority of N. oleander for fluoride removal over other plant species.