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Tolerance of Antarctic soil fungi to hydrocarbons

Hughes, Kevin A.; Bridge, Paul; Clark, Melody S.. 2007 Tolerance of Antarctic soil fungi to hydrocarbons. Science of the Total Environment, 372 (2-3). 539-548. 10.1016/j.scitotenv.2006.09.016

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Abstract/Summary

Little is known about the effects of hydrocarbons and fuel oil on Antarctic filamentous fungi in the terrestrial Antarctic environment. Growth of fungi and bacteria from soils around Rothera Research Station (Adelaide Island, Antarctic Peninsula) was assessed in the presence of ten separate aromatic and aliphatic hydrocarbons [marine gas oil (MGO), dodecane, hexadecane, benzoic acid, p-hydroxybenzoic acid, toluene, phenol, biphenyl, naphthalene and m- and p-xylenes with ethylbenzene]. Aromatic hydrocarbons inhibited soil microbial growth more than aliphatic hydrocarbons. Soil microorganisms from a moss patch, where little previous impact or hydrocarbon contamination had occurred, were less tolerant of hydrocarbons than those from high impact sites. Fungal growth rates of Mollisia sp., Penicillium commune, Mortierella sp., Trichoderma koningii, Trichoderma sp. and Phoma herbarum were assessed in the presence of hydrocarbons. Generally, aromatic hydrocarbons inhibited or stopped hyphal extension, though growth rates increased with some aliphatic hydrocarbons. Hyphal dry weight measurements suggested that Mortierella sp. may be able to use dodecane as sole carbon and energy source. Hydrocarbon-degrading Antarctic fungi may have use in future hydrocarbon spill bioremediation.

Item Type: Publication - Article
Digital Object Identifier (DOI): 10.1016/j.scitotenv.2006.09.016
Programmes: BAS Programmes > Global Science in the Antarctic Context (2005-2009) > Biodiversity, Functions, Limits and Adaptation from Molecules to Ecosystems
ISSN: 0048-9697
Additional Keywords: Hydrocarbon; Antarctica; Fungi; Microorganisms; Oil; Soil
NORA Subject Terms: Biology and Microbiology
Date made live: 13 Nov 2007 11:04
URI: http://nora.nerc.ac.uk/id/eprint/1188

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