Effects of arsenate, chromate, and sulfate on arsenic and chromium uptake and translocation by arsenic hyperaccumulator Pteris vittata L

• Published in: Environmental pollution (1987) Vol. 184; pp. 187 - 192
• Main Authors: de Oliveira, Letúzia Maria, Ma, Lena Q., Santos, Jorge A.G., Guilherme, Luiz R.G., Lessl, Jason T.
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 01.01.2014; Elsevier
• Subjects: Applied sciences; Arsenates; Arsenates - chemistry; Arsenates - metabolism; Arsenates - toxicity; Arsenic; Arsenic - chemistry; Arsenic - metabolism; Biological and medical sciences; Biotechnology; Chromates; Chromates - chemistry; Chromates - metabolism; Chromates - toxicity; Chromium; Chromium - chemistry; Chromium - metabolism; Decontamination. Miscellaneous; Earth sciences; Earth, ocean, space; Engineering and environment geology. Geothermics; Environment and pollution; Exact sciences and technology; Fundamental and applied biological sciences. Psychology; Hydroponics; Hyperaccumulator; Industrial applications and implications. Economical aspects; Inhibitors; Miscellaneous; Phytoremediation; Plant Roots - drug effects; Pollution; Pollution, environment geology; Pteris - drug effects; Pteris - metabolism; Pteris vittata; Roots; Soil and sediments pollution; Sulfates; Sulfates - chemistry; Sulfates - metabolism; Sulfates - toxicity; Sulfur; Uptakes; Water Pollutants, Chemical - chemistry; Water Pollutants, Chemical - metabolism; Water Pollutants, Chemical - toxicity; Chromium; Arsenic; Sulfur; Hyperaccumulator; Phytoremediation; Translocation; Sulfur compounds; Arsenates; Pteridophyta; Mutagen; Soil pollution; Sulfates; Chromates; Phytoextraction; Heavy metal; Trace element; Carcinogen; Decontamination; Pteris vittata; Poison; Bioremediation; Teratogen; Chromium VI
• ISSN: 0269-7491; 1873-6424
• DOI: 10.1016/j.envpol.2013.08.025

We investigated effects of arsenate (AsV), chromate (CrVI) and sulfate on As and Cr uptake and translocation by arsenic hyperaccumulator Pteris vittata (PV), which was exposed to AsV, CrVI and sulfate at 0, 0.05, 0.25 or 1.25 mM for 2-wk in hydroponic system. PV was effective in accumulating large amounts of As (4598 and 1160 mg/kg in the fronds and roots at 0.05 mM AsV) and Cr (234 and 12,630 mg/kg in the fronds and roots at 0.05 mM CrVI). However, when co-present, AsV and CrVI acted as inhibitors, negatively impacting their accumulation in PV. Arsenic accumulation in the fronds was reduced by 92% and Cr by 26%, indicating reduced As and Cr translocation. However, addition of sulfate increased uptake and translocation of As by 26–28% and Cr by 1.63 fold. This experiment demonstrated that As and Cr inhibited each other in uptake and translocation by PV but sulfate enhanced As and Cr uptake and translocation by PV. •P. vittata was efficient in Cr(VI) uptake but not its translocation to the fronts.•Arsenic and Cr(VI) inhibited each other in uptake and translocation by P. vittata.•Sulfate enhanced both uptake and translocation of As(V) and Cr(VI) by P. vittata.•Cr(VI) uptake by P. vittata was not by sulfate transporter and was different from other plants. Combined effects of arsenate, chromate and sulfate on As and Cr uptake and translocation by arsenic-hyperaccumulator Pteris vittata were presented.