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Applying metabolic fingerprinting to ecology: The use of Fourier-transform infrared spectroscopy for the rapid screening of plant responses to N deposition

Gidman, Ed; Goodacre, Royston; Emmett, Bridget; Sheppard, Lucy J.; Leith, Ian D.; Gwynn-Jones, Dylan. 2004 Applying metabolic fingerprinting to ecology: The use of Fourier-transform infrared spectroscopy for the rapid screening of plant responses to N deposition. Water, Air and Soil Pollution: Focus, 4 (6). 251-258. 10.1007/s11267-005-3035-7

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Abstract/Summary

The potential for metabolic fingerprinting via Fourier-transform infrared (FT-IR) spectroscopy to provide a novel approach for the detection of plant biochemical responses to N deposition is examined. An example of spectral analysis using shoot samples taken from an open top chamber (OTC) experiment simulating wet ammonium deposition is given. Sample preparation involved oven drying and homogenisation via mill grinding. Slurries of a consistent dilution were then prepared prior to FT-IR analysis. Spectra from control, 8 and 16 kg N ha–1 yr–1 treatments were then subjected to cross-validated discriminant function analysis. Ordination diagrams showed clear separation between the three N treatments examined. The potential for using Calluna vulgaris (L.) Hull as a bioindicator of N deposition is further evident from these results. The results also clearly demonstrate the power of FT-IR in discriminating between subtle phenotypic alterations in overall plant biochemistry as affected by ammonium pollution.

Item Type: Publication - Article
Digital Object Identifier (DOI): 10.1007/s11267-005-3035-7
Programmes: CEH Programmes pre-2009 publications > Biogeochemistry > BG02 Recovery from acidification and eutrophication
CEH Sections: _ Biogeochemistry & Ecosystem Function
_ Atmospheric Sciences
Additional Keywords: ammonium deposition, Calluna vulgaris, chemometrics, critical load, metabolic fingerprinting, plant response
NORA Subject Terms: Agriculture and Soil Science
Ecology and Environment
Date made live: 23 Jun 2009 12:51
URI: http://nora.nerc.ac.uk/id/eprint/7546

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