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Title: Does the presence of glomalin relate to reduced water infiltration through hydrophobicity?
Contributor(s): Feeney, Debbie S (author); Daniell, Tim (author); Hallett, Paul D (author); Illian, Janine (author); Ritz, Karl (author); Young, Iain  (author)
Publication Date: 2004
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Abstract: Feeney, D. S., Daniell, T., Hallett, P. D., Illian, J., Ritz, K. and Young, I. M. 2004. Does the presence of glomalin relate to reduced water infiltration through hydrophobicity? Can. J. Soil Sci. 84: 365–372. The resilience and stability of the physical structure of soil impacts directly on all soil processes, mediating microbial activity and defining the flow pathways between the soil ecosystem, waterways and the atmosphere. The effect of the presence of the glycoprotein glomalin exuded from Arbuscular Mycorrhzal (AM) fungi, on soil hydrophobicity is presented. A possible role for glomalin as improving soil structural stability is important in the context of soil protection. Using total glomalin, together with measurements of soil hydrophobicity, we investigate the spatial correlations between the two measurements in the presence and absence of pea roots. Whilst AM fungi were visible within roots (up to 52% root length colonization), no differences in glomalin concentration between planted and unplanted controls were observed. The presence and amount of glomalin did not correspond to the presence or level of hydrophobicity in soil. We discuss these results in relation to AM fungal-glomalin interactions, soil structure and root exudation.
Publication Type: Journal Article
Source of Publication: Canadian Journal of Soil Science, 84(4), p. 365-372
Publisher: Agricultural Institute of Canada
Place of Publication: Canada
ISSN: 1918-1841
Field of Research (FOR): 050303 Soil Biology
050399 Soil Sciences not elsewhere classified
050305 Soil Physics
060208 Terrestrial Ecology
Socio-Economic Outcome Codes: 961402 Farmland, Arable Cropland and Permanent Cropland Soils
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
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Appears in Collections:Journal Article
School of Environmental and Rural Science

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