SURFACEN-ALKANE VARIABILITY IN XANTHORIA PARIETINA |
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| Institution: | 1. Department of Earth and Planetary Sciences, Harvard University, 20 Oxford St., Cambridge, MA 02138, USA;2. Institute of Geology and Mineralogy, University of Cologne, Zülpicher Str. 49b, 50674 Cologne, Germany;3. School of Marine Science and Policy, University of Delaware, 700 Pilottown Road, Lewes, DE 19958, USA;1. State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China;2. Stockbridge School of Agriculture, University of Massachusetts, Amherst, MA 01003, USA;3. Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, USA;1. Ecologie des Systèmes Aquatiques, Université libre de Bruxelles, Brussels, Belgium;2. Biosciences, Swansea University, Singleton Park SA2 8PP, Swansea, UK;1. Department of Chemistry and Biochemistry, Old Dominion University, 4402 Elkhorn Ave., Norfolk, VA 23529, USA;2. U.S. Geological Survey (Emeritus), Box 25046, MS 977, Denver Federal Center, Denver, CO 80225, USA |
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| Abstract: | Surface alkanes were extracted from thalli of populations ofXanthoria parietinagrowing in two different Piedmont (Italy) valleys: Susa and Vermenagna. The mainn-alkanes detected in the Susa Valley were C27, C28, C29and C31, whereas C25, C27and C29were the most abundant in Vermenagna Valley. The results indicate that then-alkane qualitative composition ofX. parietinawas affected both by elevation and climatic characteristics typical of the two valleys considered. |
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