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RESEARCH ARTICLE

The microbiology of acid sulfate soils and sulfidic sediments

Jacqueline L Stroud A and Mike Manefield B
+ Author Affiliations
- Author Affiliations

A Water Research Centre
School of Civil and Environmental Engineering
University of New South Wales
Sydney, NSW 2052, Australia
Tel: +61 2 9385 5604
Fax: +61 2 9313 8624 469036
Email: jacstroud@gmail.com

B School of Biotechnology and Biomolecular Sciences
University of New South Wales
Sydney, NSW 2052, Australia

Microbiology Australia 35(4) 195-198 https://doi.org/10.1071/MA14063
Published: 30 October 2014

Abstract

Acid sulfate soils and their associated sulfidic sediments present a major hazard to sustainable farming, water security and urban infrastructure. Traditionally these soils are limed in order to neutralise the ‘leachate' that is a public health hazard and toxic to aquatic organisms. It may be more sustainable to exploit the soil microorganisms capable of sequestering metals to remediate these soils. Until recently, little was known about the microbial ecology of these environments. The soils have a moderately acidic (pH 4) chemistry and a unique ecosystem where the microbial community composition is correlated to bioaccessible metal concentrations. These environments have the potential to provide novel insights into how environmental conditions shape the microbiome that can be exploited for biotechnologies.


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