PMID: 11931457Apr 5, 2002Paper

Effects of arsenic concentrations and forms on arsenic uptake by the hyperaccumulator ladder brake

Journal of Environmental Quality
Cong Tu, Lena Q Ma

Abstract

Ladder brake (Pteris vittata L.) is a newly discovered arsenic hyperaccumulator. No information is available about arsenic effects on ladder brake. This study determined the effects of different arsenic concentrations (50 to 1000 mg kg(-1)) or forms (organic vs. inorganic and arsenite vs. arsenate) applied to soils on growth and arsenic uptake by ladder brake. Young plants were grown in a greenhouse for 12 or 18 wk. Ladder brake was highly tolerant of arsenic and survived in soil containing up to 500 mg As kg(-1). The fact that addition of arsenate up to 100 mg As kg(-1) increased fern biomass by 64 to 107%, coupled with higher arsenic concentration in younger fronds at low soil arsenic concentrations and older fronds at high soil arsenic concentrations, implies that arsenic may be beneficial for fern growth. Addition of 50 mg As kg(-1) was best for fern growth and arsenic accumulation, resulting in the highest fern biomass (3.9 g plant(-1)), bioconcentration factor (up to 63), and translocation factor (up to 25). With an exception of FeAsO4 and AlAsO4, which had the lowest effects due to their low solubility, little difference was observed among other arsenic forms mainly because of arsenic conversion in soil. Aboveground biom...Continue Reading

Citations

Nov 12, 2013·Ecotoxicology and Environmental Safety·K A FalinskiJ Peard
Feb 20, 2007·International Journal of Phytoremediation·G M Kertulis-TartarT Chirenje
May 24, 2011·International Journal of Phytoremediation·LaShunda L AndersonGregory Merchan
Mar 16, 2013·International Journal of Phytoremediation·Nguyen V Hue
Feb 11, 2014·Journal of Environmental Management·Shahedur RahmanDipak Kumar Paul
Apr 25, 2012·Environmental Science and Pollution Research International·Nabeel Khan NiaziAnthony George Kachenko
Mar 3, 2010·Annual Review of Plant Biology·Fang-Jie ZhaoAndrew A Meharg
Oct 28, 2008·The Science of the Total Environment·Lukasz JedynakJerzy Golimowski
Oct 1, 2008·Bioresource Technology·Mrittunjai SrivastavaPratibha Srivastava
Feb 13, 2009·The New Phytologist·Xin ZhangYong-Guan Zhu
Feb 12, 2009·The New Phytologist·F J ZhaoS P McGrath
Oct 12, 2010·Microscopy Research and Technique·Sang Joon Lee, Jin Pyung Lee
Sep 1, 2004·The Science of the Total Environment·Bhaskar R BondadaLena Q Ma
Jun 30, 2005·The Science of the Total Environment·Abioye O Fayiga, Lena Q Ma
Jun 17, 2006·Environmental Pollution·H B WangZ H Ye

❮ Previous
Next ❯

Related Concepts

Related Feeds

Bioremediation (ASM)

Bioremediation is the treatment and removal of harmful pollutants or contaminants through the use of microorganisms. Discover the latest research here.