Book contents
- Frontmatter
- Contents
- List of contributors
- Preface
- 1 Degradation of plant cell wall polymers
- 2 The biochemistry of ligninolytic fungi
- 3 Bioremediation potential of white rot fungi
- 4 Fungal remediation of soils contaminated with persistent organic pollutants
- 5 Formulation of fungi for in situ bioremediation
- 6 Fungal biodegradation of chlorinated monoaromatics and BTEX compounds
- 7 Bioremediation of polycyclic aromatic hydrocarbons by ligninolytic and non-ligninolytic fungi
- 8 Pesticide degradation
- 9 Degradation of energetic compounds by fungi
- 10 Use of wood-rotting fungi for the decolorization of dyes and industrial effluents
- 11 The roles of fungi in agricultural waste conversion
- 12 Cyanide biodegradation by fungi
- 13 Metal transformations
- 14 Heterotrophic leaching
- 15 Fungal metal biosorption
- 16 The potential for utilizing mycorrhizal associations in soil bioremediation
- 17 Mycorrhizas and hydrocarbons
- Index
16 - The potential for utilizing mycorrhizal associations in soil bioremediation
Published online by Cambridge University Press: 08 October 2009
- Frontmatter
- Contents
- List of contributors
- Preface
- 1 Degradation of plant cell wall polymers
- 2 The biochemistry of ligninolytic fungi
- 3 Bioremediation potential of white rot fungi
- 4 Fungal remediation of soils contaminated with persistent organic pollutants
- 5 Formulation of fungi for in situ bioremediation
- 6 Fungal biodegradation of chlorinated monoaromatics and BTEX compounds
- 7 Bioremediation of polycyclic aromatic hydrocarbons by ligninolytic and non-ligninolytic fungi
- 8 Pesticide degradation
- 9 Degradation of energetic compounds by fungi
- 10 Use of wood-rotting fungi for the decolorization of dyes and industrial effluents
- 11 The roles of fungi in agricultural waste conversion
- 12 Cyanide biodegradation by fungi
- 13 Metal transformations
- 14 Heterotrophic leaching
- 15 Fungal metal biosorption
- 16 The potential for utilizing mycorrhizal associations in soil bioremediation
- 17 Mycorrhizas and hydrocarbons
- Index
Summary
Introduction
There is intense interest in utilizing plants to facilitate remediation of contaminated soils because ‘rhizoremediation’ offers a low-cost and ecologically acceptable approach to dissipating pollutants in soils (Anderson, Guthrie & Walton, 1993). The ability of a limited number of plant species, which are normally endemic to naturally metalliferous soils, to hyperac-cumulate metals is being explored with a view to remediating metal-contaminated soils; the process is termed phytoremediation (Cunningham et al., 1996). Phytoremediation as a technology has advantages and disadvantages, but as most hyperaccumulating species that are being explored with a view to commercial exploitation are in the Cruciferae and are generally non-mycorrhizal, these will not be considered in this review. The degradation of organic pollutants in the rhizosphere has also received considerable interest with a view to developing in situ remediation technologies (Anderson et al., 1993). It is here that mycorrhizal associations have to be considered (Donnelly & Fletcher, 1994; Meharg & Cairney, 2000a).
Rhizosphere degradation of organic pollutants
A wide range of organic pollutants are degraded more rapidly in the rhizospheres of most plant species tested than in bulk soils (Anderson et al., 1993). This ‘rhizosphere effect’ varies according to the chemical being degraded, the plant species used and the soil under study. The following explanations are normally put forward to explain enhanced rhizosphere degradation. First, rhizosphere carbon flow greatly stimulates microbial activity in soil surrounding plant roots, and this enhanced microbial activity results in an enhanced pollutant degradation rates.
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- Chapter
- Information
- Fungi in Bioremediation , pp. 445 - 455Publisher: Cambridge University PressPrint publication year: 2001
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