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Abstract Detail

Mycological Section

Curlevski, Nathalie J.A [1], Anderson, Ian C [1], Xu, Zhihong [2], Cairney, John W.G [1].

Soil fungal communities are altered by native forest conversion to monoculture plantations in subtropical Australia.

Conversion of native forest to commercial forestry plantations can alter soil fungal community structure. Such disturbances to fungal communities may induce changes in fundamental soil processes, including carbon and nutrient cycling. To date, investigations have focused largely on the effects of establishing exotic tree plantations, thus little is known of the extent to which native forest conversion to native species plantations influences soil fungi. We investigated soil fungal communities in adjacent native sclerophyll forest and plantation monoculture forests of Araucaria cunninghamii at two stages of development (first rotation, ca. 60 years and second rotation, ca. 8 years) in subtropical Australia. Soil cores were collected from five plots in each of the forest types at Yarraman state forest, Queensland, Australia. In addition, hyphal ingrowth bags were buried for seven months in the native and first rotation forest plots. DNA was extracted from each sample and terminal restriction fragment length polymorphism (T-RFLP) profiles of fungal rDNA internal transcribed spacer (ITS) regions were compared. Canonical analyses of the principal coordinates (CAP) analysis of the T-RFLP data showed significant separation of forest types along canonical axis 2, with native forest separating from the two plantation forests along canonical axis 1. Moreover, fungal communities in hyphal ingrowth bags were found to be more similar to each other than to the corresponding soil fungal communities. The data will be discussed in the context of ITS sequence data obtained from clone libraries generated for soil and hyphal ingrowth bags for each forest type.

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1 - University of Western Sydney, Centre for Plant and Food science, Locked bag 1797, Penrith South DC, NSW, 1797, Australia
2 - Griffith university, Centre for forestry and horticultural research, 170 Kessels road, Nathan, QLD, 4111, Australia

fungal communities

Presentation Type: Poster:Posters for BSA Sections
Session: P2
Location: Event Tent/Cliff Lodge
Date: Tuesday, July 28th, 2009
Time: 5:30 PM
Number: P2MY004
Abstract ID:54