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	Beat Frey
	Swiss Federal Institute WSL PO Box CH-8903 Birmensdorf Switzerland Tel. +41 1 739 22 84 Fax +41 1 739 22 15 beat.frey@wsl.ch

Education

• 1987: dipl. ing. agr. ETH Zürich
• 1993: Dr. sc. techn. ETH Zürich

Research interests Microbial Ecology

• Molecular Ecology: Application of molecular markers to characterize the structure and function of key microbial populations in the soil
• Rhizosphere Research: Assessing of the complex plant-soil-microbe interactions under the impact of global change
• Biogeochemistry: Elucidation of undesirable effects on key microbial processes (litter decomposition and CO2 effluxes from soils) by management practises and anthropogenic impact

Newest Publications

• Brunner I, Ploetze M, Zumsteg A, Furrer F, Frey B. (2010) Pioneering fungi and their role in initial weathering of Damma glacier forefield granite in the Swiss Alps. Geobiology (in review).
• Frey B., Rieder S.R., Brunner I., Ploetze M., Koetzsch S., Lapanje A., Brandl H., Furrer G. (2010) Weathering-associated bacteria from the Damma glacier forefield: Physiological capabilities and impact on granite dissolution. Applied and Environmental Microbiology 76:4788-4796.
• Frey B., Ruedt A., Widmer F. (2010). Changes of rhizosphere bacterial populations during phytoextraction of heavy metal polluted soil with poplar. Plant Biosystems 144: 392-395.
• Cocozza C., Cherubini P., Regier N., Saurer M., Frey B., Tognetti R. (2010) Early effects of water deficit on two parental clones of Populus nigra grown under different environmental conditions. Functional Plant Biology 37: 244Ð254.
• Graf Pannatier, E.; Dobbertin, M.; Heim A.; Schmitt, M.; Thimonier, A.; Waldner, P., Frey B. (2010) Response of carbon fluxes to the 2003 heat wave and drought in three mature forests in Switzerland. Biogeochemistry (in review).
• Regier N., Streb S., Zeeman S.C., Frey B. (2010) Seasonal changes in starch and sugar content of poplar (Populus deltoides x nigra cv. Dorskamp) and the impact of stem girdling on carbohydrate allocation to roots. Tree Physiology 30: 979-987.
• Thebault A., Frey B., Mitchell E., Buttler A. (2010) Species-specfic effects of polyploidisation and plant traits of Centaurea maculosa and Senecio inaequidens on rhizosphere microorganisms. Oecologia 163: 1011-1020.
• Tipping E., Lofts S., Hooper H., Frey B., Bringmark L., Spurgeon D., Svendsen C. (2010) Critical limits for Hg(II) in soils, derived from chronic toxicity data. Environmental Pollution 158: 2465-2471.
• Vollenweider P., Bernasconi P., Gautschi HP, Menard T., Frey B., GŸnthardt Goerg M., (2010) Compartmentation of heavy metals in foliage of Populus tremula grown on soils with mixed contamination. II. Zinc binding inside leaf cell organelles. Environmental Pollution doi:10.1016/j.envpol.2010.03.016
• Zumsteg A., Luster J., Gšransson H., Smittenberg R., Brunner I., Bernasconi S., Zeyer J., Frey B. (2010). Bacterial, archaeal and fungal succession in the forefield of a receding glacier. FEMS Microbiology Ecology (in review).
• Brunner, I. Graf Pannatier, E. Frey B. Rigling, A. Landolt, W. Zimmermann, S. Dobbertin, M., (2009) Morphological and physiological responses of Scots pine fine roots to water supply in a dry climatic region in Switzerland. Tree Physiol. 29: 541-550.
• Frey, B.; Kremer, J.; Ruedt, A.; Sciacca, S.; Matthies, D.; Luescher, P., (2009). Compaction of forest soil with heavy logging machinery affects soil bacterial community structure. Eur. J. Soil Biol. 45: 312-320
• Regier N., Streb S., Cocozza C., Schaub M., Cherubini P., Zeeman S., Frey B. (2009). Drought tolerance of two black poplar (Populus nigra L.) clones: contribution of carbohydrates and oxidative stress defence. Plant Cell and Environment 32: 1724-1736.
• Frey B., Pesaro M., Ruedt A., Widmer F., (2008) Resilience of the rhizosphere Pseudomonas and ammonia-oxidizing bacterial populations during phytoextraction of heavy metal polluted soil with poplar. Environmental Microbiology 10: 1433-1449.
• Brunner I., Pannatier E., Frey B., Rigling A., Zimmermann S., Dobbertin M. (2009) Morphological and physiological responses of Scots pine fine roots to water supply in a dry climatic region in Switzerland. Tree Physiology 29: 541-550.
• Schoenmann S, Loy A, Wimmersberger C, Sobek J, Frey B, Vandamme, Rehrauer H, P, Eberl L (2008). A 16S rRNA-based phylogenetic microarray for members of the genus Burkholderia. Environmental Microbiology 11, 4: 779-800. <
• Ernst G., Zimmermann S., Christie P., Frey B. (2008) Mercury, cadmium and lead concentrations in different ecophysiological groups of earthworms in forest soils. Environmental Pollution 156: 1304-1313.
• Ringli C., Bigler L., Leiber R., Diet A., Santelia D., Frey B., Pollmann S., Klein M. (2008) The modified flavonol glycosylation profile in the Arabidopsis rol1 mutants results in alterations in plant growth and cell shape formation. Plant Cell 20: 1470-1481.
• Lazzaro A., Widmer F., Sperisen C., Frey B. (2008) Identification of dominant bacterial phylotypes in a cadmium-treated forest soil. FEMS Microbiology Ecology 63: 143-155.
• Novak C., Schaub M., Fuhrer J., Skelly JM., Frey B., Krauchi N. (2008) Ozone effects on visible foliar injury and growth of Fagus sylvatica and Viburnum lantana seedlings grown in monoculture or in mixture. Environmental and Experimental Botany 62: 212-220.
• Brunner I., Luster J., Guenthardt-Goerg M., Frey B. (2007) Heavy metal accumulation and phytostabilisation potential of tree fine roots in a contaminated soil. Environmental Pollution 152: 559-568.
• Notzli K., Boll A., Frey B., Graf F., Holdenrieder O. (2007) Release of iron from bonding nails in torrent control check dams and its effect on wood decomposition by Fomitopsis pinicola. Wood research 52:1-14.
• Lazzaro A., Schulin R., Widmer F., Frey B. (2006) Changes in lead availability affect bacterial community structure but not basal respiration. Science of Total Environment 371: 110-124.
• Ernst G., Frey B. (2007) The effect of feeding behaviour on Hg accumulation in the ecophysiologically different earthworms Lumbricus terrestris and Octolaseon cyaneum: a microcosm experiment. Soil Biology and Biochemistry 39: 386 - 390.
• Lazzaro A., Hartmann M., Blaser P., Widmer F., Schulin R., Frey B. (2006) Bacterial community structure and activity in different Cd-treated forest soils. FEMS Microbiology Ecology 58: 278-292.
• Rigling D., Guenthardt-Goerg M., Blauenstein H., Frey B. (2006). Absorption of heavy metals into Armillaria rhizomorphs from contaminated soils. For. Snow Landsc. Res. 80: 213-220.
• Novak B., Rais D., Frey B., Menon M., Schulin R., Guenthardt-Goerg M., Luster J. (2006). Influence of heavy metal contamination on soil parameters in a lysimeter experiment designed to evaluate phytostabilization by afforestation. For. Snow Landsc. Res. 80: 201-211.
• Widmer F., Hartmann M., Frey B., Koelliker R. (2006) A novel strategy to extract specific phylogenetic sequence information from community T-RFLP. Journal of Microbiological Methods 66: 512-520.
• Frey B., Stemmer M., Widmer F., Luster J., Sperisen C. (2006) Microbial characterization of a heavy metal-contaminated soil in a model forest ecosystem. Soil Biology and Biochemistry 38: 1745-1756.
• Frey B., Hagedorn F., Giudici F. (2006) Effect of girdling on soil respiration and root composition in a sweet chestnut forest. Forest, Ecology and Management 225: 271-277.
• Frey B. (2007) Botanical X-ray Microanalysis in Cryo-Scanning Electron Microscopy. In: Methods in Molecular Biology, vol 369, Electron Microscopy: Methods and Protocols. Ed. J. Kuo. Humana Press Inc. NJ, pp. 529-541.
• Frey B., Turnau K. (2007) Elemental analysis of roots and fungi. In: Luster, J.; Finlay, R. (eds.). 2007. Handbook of Methods used in Rhizosphere Research. Birmensdorf, Swiss Federal Research Institute WSL. pp. 30-37.
• Frey B. (2006) Botanical X-ray microanalysis in Cryo-Scanning Electron Microscopy. In: Electron Microscopy: Methods and Protocols, J. Kuo (ed.), second edition. Humana Press Inc. (in press).
• Hartmann M., Frey B., Koelliker R., Widmer F. (2005) Semi-automated genetic analyses of soil microbial communities: comparison of T-RFLP and RISA based on descriptive and discriminative statistical spproaches. Journal of Microbiological Methods 61 (3): 349-360.
• Cosio, C., DeSantis L., Frey B., Diallo S., Keller C. (2005) Cadmium distribution in leaves of Thlaspi caerulescens. Journal of Experimental Botany 56: 765-775.
• Heim A., Frey B. (2004) Predicting litter decomposition rates for Swiss forests. Biogeochemistry 70: 301-315
• Frey B., Zierold, K. (2003) X-ray microanalysis in botanical research. In: Science, Technology and Education of Microscopy: an overview, ed. A. Mendez-Vilas. Formatex, Extremadura.
• Frey B., Zimmermann S., Stemmer M., Luster J., Nowack B., Widmer F. (2003) The use of microbial bioassays and activity measurements for the evaluation of metal-contaminated soil quality. 7th ICOBTE, Uppsala, Sweden, June 15-19, 2003, Conference Proceedings, Vol. 2: 176-177
• Schwab B, Mathur J, Saedler R, Schwarz H, Frey B, Scheidegger C, Huelskamp M (2003) Regulation of cell expansion by the distorted genes in Arabidopsis thaliana: Action controls the spatial organization of microtubules. Molecular Genetics and Genomics 269: 350-360
• Jung C, Maeder V, Funk F, Frey B, Sticher H, Frossard E (2003) Release of phenols from Lupinus albus L. roots exposed to Cu and their possible role in Cu detoxification. Plant and Soil 252: 301-312.
• Fonti P., Frey B. 2002. Is ray volume a possible factor influencing ring shake occurrence in chestnut wood? Trees 16, 519-522.
• Ringli C., Baumberger N., Diet, A., Frey B., Keller B. 2002. ACTIN2 is essential for bulge site selection and tip growth during root hair development of Arabidopsis. Plant Physiol. 129, 1464-1472.
• Zimmermann, S., Frey, B. 2002. Soil respiration and microbial properties in an acid forest soil: the effects of wood ash. Soil Biology and Biochemistry 34, 1727-1737.
• Zimmermann, S., Frey, B. 2002. Wie reagieren Bodenmikroorganismen auf Holzasche im Wald? Informationsblatt Forschungsbereich Wald 12, 4-5. (pdf)
• Frey, B., Scheidegger, C. 2002. Preparative techniques for LTSEM of lichens. In Methods in lichenology, Eds. I. Kranner, R.P.Beckett and A. Varma. Springer Lab Manual, Heidelberg 118-132.
• Frey, B., Keller, C., Zierold, K., Schulin, R. 2000. Distribution of Zn in functionally different leaf epidermal cells of the hyperaccumulator Thlaspi caerulescens. Plant Cell Environm. 23, 675-687.
• Frey, B., Brunner, I. 2000. Schadstoffen in Baumwurzeln auf der Spur. Informationsblatt Forschungsbereich Wald 4, 3-5. (pdf)
• Frey, B., Zierold, K., Brunner, I. 2000. Extracellular complexation of Cd in the Hartig net and cytosolic Zn sequestration in the fungal mantle of Picea abies-Hebeloma crustuliniforme ectomycorrhizas. Plant Cell Environm. 23, 1257-1265.
• Brunner, I., Frey, B. 2000. Detection and localization of aluminum and heavy metals in ectomycorrhizal Norway spruce seedlings. Environm Pollut 108, 121-128.

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