The Tolerance and Accumulation of Miscanthus Sacchariflorus (maxim.) Benth., an Energy Plant Species, to Cadmium

International Journal of Phytoremediation
Jie ZhangShoubiao Zhou

Abstract

Miscanthus sacchariflorus (Maxim.) Benth. is a metallophyte suitable for the phytoremediation of mine wastes. The tolerance and accumulation of M. sacchariflorus to cadmium was studied by pot experiments. The results showed that O2·- generation rate, plasma membrane permeability and MDA content of M. sacchariflorus leaves increased with increasing Cd concentrations in soil, but significant effect was only observed when Cd concentrations were ≥50 mg·kg(-1). SOD and POD activities increased initially but decreased later on, whereas CAT activity only increased significantly at higher Cd concentrations, 50-100 mg·kg(-1). The content of photosynthetic pigment and growth of M. sacchariflorus were both not significantly affected when Cd concentration was ≤25 mg·kg(-1). In contrast, both parameters were significantly affected when Cd concentration was ≥50 mg·kg(-1). M. sacchariflorus could accumulate much Cd, but most of the Cd assimilated was retained in the belowground part, suggesting that M. sacchariflorus has poor ability to translocate Cd to the aboveground part. Our results suggested that although M. sacchariflorus was not a hyper-accumulator, it has a strong capacity to tolerate and stabilize the Cd. Therefore, M. saccharifloru...Continue Reading

References

May 5, 2001·Plant Science : an International Journal of Experimental Plant Biology·A HegedüsG Horváth
Jan 1, 1993·Plant Physiology·J. G. Scandalios
Feb 11, 2003·Analytical Biochemistry·Christian RingelOtto Wienhaus
Jun 29, 2005·The Science of the Total Environment·Albertina Xavier da Rosa CorrêaClaudemir Marcos Radetski
Mar 21, 2006·Plant Physiology and Biochemistry : PPB·S MishraM N V Prasad
May 19, 2006·International Journal of Environmental Research and Public Health·Murty S KambhampatiYolanda Bufford
Dec 18, 2007·Ecotoxicology and Environmental Safety·Chandra Shekhar SethVirendra Misra
Sep 28, 2010·Plant Physiology and Biochemistry : PPB·Sarvajeet Singh Gill, Narendra Tuteja
Mar 13, 2012·Plant Science : an International Journal of Experimental Plant Biology·Shamima Akhtar SharminByung-Hyun Lee
Oct 16, 2012·International Journal of Environmental Research and Public Health·Shiyong YangQuanfa Li
Apr 20, 2013·Journal of Experimental Botany·Paul R H RobsonIain S Donnison
Feb 25, 2014·The Science of the Total Environment·Petronela-Bianca PavelConstantin Horia Barbu

❮ Previous
Next ❯

Methods Mentioned

BETA
atomic absorption spectroscopy
MDA

Software Mentioned

SPSS19

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.