Effect of a saprophytic fungus on the growth and the lead uptake, translocation and immobilization in Dodonaea viscosa

International Journal of Phytoremediation
Cesar C Rojas-LoriaTania L Volke-Sepulveda

Abstract

Phytoremediation is a feasible alternative to remediate soils polluted with toxic elements, which can be enhanced by manipulating plant-microbe interactions. Regarding this, free-living saprophytic fungi that interact beneficially with roots have been scarcely studied. Thus, the aim of this study was to assess the effect of a saprophytic fungus, Lewia sp., on the plant growth and the ability of Dodonaea viscosa to phytoaccumulate or phytostabilize soluble and insoluble sources of lead in a solid support. The growth of D. viscosa was influenced by both Pb and Lewia sp. While seedlings exposed to Pb showed a decrease in biomass production, in seedlings grown without Pb the biomass was stimulated by Lewia sp. The fungus strongly stimulated the weight-to-length ratio in roots. Regardless of the treatment, D. viscosa accumulated 4.4-6.5 times more Pb in roots than in shoots, conducting to low translocation factors (< 0.2). The presence of Lewia sp. significantly improved Pb accumulation, achieving high bioconcentration factors (> 22), which was attributed to an increased bioavailability and uptake of Pb due to the fungus. This study demonstrated that Lewia sp. could improve Pb-phytostabilization by D. viscosa in soils polluted with ...Continue Reading

References

May 30, 2001·Current Opinion in Microbiology·T Barkay, J Schaefer
Jul 1, 1997·The Plant Cell·J. D. Bewley
Jul 16, 2004·Journal of Environmental Quality·Agneta GöthbergBengt-Erik Bengtsson
Jun 11, 2005·Current Opinion in Plant Biology·Christine B Müller, Jochen Krauss
Oct 11, 2005·Environmental Pollution·H DengM H Wong
Apr 8, 2006·The Science of the Total Environment·Joonki YoonLena Q Ma
Oct 19, 2006·Environmental Pollution·Patrick Audet, Christiane Charest
Dec 5, 2006·Mycologia·Hanna KwaśnaBarbara Kosiak
Feb 6, 2007·Environment International·Xuliang ZhuangZhihui Bai
Mar 16, 2007·Environmental Pollution·Jan MertensKris Verheyen
Nov 6, 2007·Environmental Pollution·Thierry LebeauKarine Jézéquel

❮ Previous
Next ❯

Citations

Oct 13, 2015·International Journal of Phytoremediation·Jie LuoJinji Wang

❮ Previous
Next ❯

Datasets Mentioned

BETA
GU296022

Methods Mentioned

BETA
flame

Software Mentioned

SAS
BLAST

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.