Dr. Alexander Loy
Abteilung Mikrobielle Ökologie
Wiener Ökologiezentrum
Universität Wien
Althanstr. 14
A-1090 Wien
Austria
 
phone: +43 1 4277 54207
fax: +43 1 4277 54389
email:
 
Topics
 
 Ribosomal RNA-targeted oligonucleotide microarrays (PhyloChips) for analysis of microbial communities
 Diversity, ecophysiology, and evolution of sulfate-reducing microbes
 DNA Microarray technology for biodiversity inventories of sulfate reducing prokaryotes (Ph.D. thesis as PDF document)
 Ecology and genetics of the intestinal microbiota in health and disease (InflammoBiota)
 
Publications in peer reviewed journals
  1. Pester M, Bittner N, Deevong P, Wagner M, Loy A. 2010. A 'rare biosphere' microorganism contributes to sulfate reduction in a peatland. ISME J. , in press.
     PDF    PUBMED
     Supplementary information [PDF]
  2. Hubert C, Arnosti C, Brüchert V, Loy A, Vandieken V, Jørgensen BB. 2010. Thermophilic anaerobes in Arctic marine sediments induced to mineralize complex organic matter at high temperature. Environ. Microbiol. 12: 1089-1104.
     PDF    PUBMED
  3. Hubert C, Loy A, Nickel M, Arnosti C, Baranyi C, Brüchert V, Ferdelman T, Finster K, Christensen FM, Rosa de Rezende J, Vandieken V, Jørgensen BB. 2009. A constant flux of diverse thermophilic bacteria into the cold Arctic seabed. Science 325: 1541-1544.
     PUBMED
  4. Hesselsøe M, Füreder S, Schloter M, Bodrossy L, Iversen N, Roslev P, Nielsen PH, Wagner M, Loy A. 2009. Isotope array analysis of Rhodocyclales uncovers functional redundancy and versatility in an activated sludge. ISME J. 3: 1349-1364.
     PUBMED
  5. Rinke C, Schmitz-Esser S, Loy A, Horn M, Wagner M, Bright M. 2009. High genetic similarity between two geographically distinct strains of the sulfur-oxidizing symbiont 'Candidatus Thiobios zoothamnicoli' FEMS Microbiol. Ecol. 67: 229-41.
     PDF    PUBMED
  6. Loy A, Duller S, Baranyi C, Mußmann M, Ott J, Sharon I, Béjà O, Le Paslier D, Dahl C, Wagner M. 2009. Reverse dissimilatory sulfite reductase as phylogenetic marker for a subgroup of sulfur-oxidizing prokaryotes. Environ. Microbiol. 11: 289-299.
     PDF    PUBMED
     Supplementary figure 1
     Supplementary table 1
     DsrAB database for ARB
  7. Schönmann S, Loy A, Wimmersberger C, Sobek J, Rehrauer H, Frey B, Vandamme P, Eberl L. 2009. 16S rRNA gene-based phylogenetic microarray for simultaneous identification of members of the genus Burkholderia. Environ. Microbiol. 11: 779-800.
     PDF    PUBMED
  8. Loy A, Arnold R, Tischler P, Rattei T, Wagner M, Horn M. 2008. probeCheck - a central resource for evaluating oligonucleotide probe coverage and specificity. Environ. Microbiol. 10: 2894-2896.
     PDF    PUBMED
  9. Ruehland C, Blazejak A, Lott C, Loy A, Erseus C, Dubilier N. 2008. Multiple bacterial symbionts in two species of co-occurring gutless oligochaete worms from Mediterranean sea grass sediments. Environ Microbiol. 10: 3404-3416.
     PDF    PUBMED
  10. Miletto M, Loy A, Antheunisse AM, Loeb R, Bodelier PLE, Laanbroek HJ. 2008. Biogeography of sulfate-reducing prokaryotes in river floodplains. FEMS Microbiol. Ecol. 64: 395-406.
     PDF    PUBMED
  11. Wagner M, Smidt H, Loy A, Zhou J. 2007. Unravelling microbial communities with DNA-microarrays: challenges and future directions. Microb. Ecol. 53: 498-506.
     PDF    PUBMED
  12. Lücker S, Steger D, Kjeldsen KU, MacGregor BJ, Wagner M, Loy A. 2007. Improved 16S rRNA-targeted oligonucleotide probe set for analysis of sulfate-reducing bacteria by fluorescence in situ hybridization. J. Microbiol. Methods. 69: 523-528.
     PDF    PUBMED
     Supplementary online material
  13. Kjeldsen KU, Loy A, Thomsen TR, Jakobsen TF, Wagner M, and Ingvorsen K. 2007. Diversity of sulfate-reducing bacteria from an extreme hypersaline sediment in Great Salt Lake (Utah, USA). FEMS Microbiol. Ecol. 60: 287-298.
     PDF    PUBMED
  14. Loy A, Maixner F, Wagner M, Horn M. 2007. probeBase - an online resource for rRNA-targeted oligonucleotide probes: new features 2007. Nucleic Acids Res. 35: D800-D804.
     PDF    PUBMED
  15. Leloup J, Loy A, Knab NJ, Borowski C, Wagner M, Jørgensen BB. 2007. Diversity and abundance of sulfate-reducing microorganisms in the sulfate and methane zones of a marine sediment, Black Sea. Environ. Microbiol. 9: 131-142.
     PDF    PUBMED
  16. Imachi H, Sekiguchi Y, Kamagata Y, Loy A, Qiu YL, Hugenholtz P, Kimura N, Wagner M, Ohashi A, Harada H. 2006. Non-sulfate-reducing, syntrophic bacteria affiliated with the Desulfotomaculum cluster I are widely distributed in methanogenic environments. Appl. Environ. Microbiol. 72: 2080-2091.
     PDF    PUBMED
  17. Wagner M, Nielsen PH, Loy A, Nielsen JL, Daims H. 2006. Linking microbial community structure with function: fluorescence in situ hybridization-microautoradiography and isotope arrays. Curr. Opin. Biotechnol. 17: 1-9.
     PDF    PUBMED
  18. Loy A, Bodrossy L. 2006. Highly parallel microbial diagnostics using oligonucleotide microarrays. Clinica Chimica Acta 363: 106-119.
     PDF    PUBMED
  19. Sabehi G, Loy A, Jung KH, Partha R, Spudich JL, Isaacson T, Hirschberg J, Wagner M, Beja O. 2005. New insights into metabolic properties of marine bacteria encoding proteorhodopsins. PLoS Biol. 3: e273.
     PDF    PUBMED
  20. Lehner A, Loy A, Behr T, Gaenge H, Ludwig W, Wagner M, Schleifer KH. 2005. Oligonucleotide microarray for identification of Enterococcus species. FEMS Microbiol. Lett. 246: 133-142.
     PDF    PUBMED
  21. Wagner M, Loy A, Klein M, Lee N,Ramsing NB, Stahl DA, Friedrich MW. 2005. Functional marker genes for identification of sulphate-reducing prokaryotes. Methods Enzymol. 397: 469-489.
     PDF    PUBMED
  22. Loy A, Beisker W, Meier H. 2005. Diversity of bacteria growing in a natural mineral water after bottling. Appl. Environ. Microbiol. 71: 3624-3632.
     PDF    PUBMED
  23. Zverlov V, Klein M, Lücker S, Friedrich MW, Kellermann J, Stahl DA, Loy A, Wagner M. 2005. Lateral gene transfer of dissimilatory (bi)sulfite reductase revisited. J. Bacteriol. 187: 2203-2208.
     PDF    PUBMED
  24. Loy A, Schulz C, Lücker S, Schöpfer-Wendels A, Stoecker K, Baranyi C, Lehner A, Wagner M. 2005. 16S rRNA gene-based oligonucleotide microarray for environmental monitoring of the betaproteobacterial order Rhodocyclales. Appl. Environ. Microbiol. 71: 1373-1386.
     PDF    PUBMED
  25. Loy A, Küsel K, Lehner A, Drake HL, Wagner M. 2004. Microarray and functional gene analyses of sulfate-reducing prokaryotes in low sulfate, acidic fens reveal co-occurrence of recognized genera and novel lineages. Appl. Environ. Microbiol. 70: 6998-7009.
     PDF    PUBMED
  26. Loy A, Horn M, Wagner M.. 2003. probeBase - an online resource for rRNA-targeted oligonucleotide probes. Nucleic Acids Res. 31: 514-516.
     PDF    PUBMED
  27. Loy A, Lehner A, Lee N, Adamczyk J, Meier H, Ernst J, Schleifer KH, Wagner M. 2002. Oligonucleotide microarray for 16S rRNA gene-based detection of all recognized lineages of sulfate-reducing prokaryotes in the environment. Appl. Environ. Microbiol. 68: 5064-5081.
     PDF    PUBMED
  28. Wagner M, Loy A, Nogueira R, Purkhold U, Lee N, Daims H. 2002. Microbial community composition and function in wastewater treatment plants. Antonie van Leeuwenhoek 81: 665-680 .
     PDF    PUBMED
  29. Wagner M, Loy A. 2002. Bacterial community composition and function in sewage treatment systems. Curr. Opin. Biotechnol. 13: 218-227.
     PDF    PUBMED
  30. Juretschko S, Loy A, Lehner A, Wagner M. 2002. The microbial community composition of a nitrifying-denitrifying activated sludge from an industrial sewage treatment plant analyzed by the full-cycle rRNA approach. Syst. Appl. Microbiol. 25: 84-99.
     PDF    PUBMED

Book chapters and other publications
  1. Loy A, Pester M. 2010. Probing identity and physiology of uncultured microorganisms with isotope labeling techniques. In Geomicrobiology: Molecular and Environmental Perspective, pp. 127-146. (Barton LL, Mandl M, Loy A, ed.). Springer, Dordrecht, Heidelberg, London, New York.
  2. Taylor MW, Loy A, and Wagner M. 2010. Microarrays for studying the composition and function of microbial communities. In The microbiology of activated sludge, pp. 397-411. (Seviour RJ, Nielsen PH, ed.). IWA Publishing, London, UK.
  3. Loy A, Duller S, and Wagner M.. 2008. Evolution and ecology of microbes dissimilating sulfur compounds: Insights from siroheme sulfite reductases. In Microbial Sulfur Metabolism, pp. 46-59. (Friedrich C, Dahl C, ed.). Springer, New York.
  4. Stahl DA, Loy A, Wagner M. 2007. Molecular strategies for studies of natural populations of sulphate-reducing microorganisms. In Sulfate-reducing bacteria: Environmental and engineered systems, pp. 39-117. (Barton LL, Hamilton WA, ed.). Cambridge University Press, Cambridge, UK.
  5. Loy A, Taylor MW, Bodrossy L, Wagner M. 2006. Applications of nucleic acid microarrays in soil microbial ecology. In Molecular approaches to soil, rhizosphere and plant microorganism analysis, pp. 18-41. (Cooper JE, Rao JR, ed.). CABI Publishing, Wallingford, Oxfordshire, UK.
     PDF   
  6. Bodrossy L, Loy A. 2005. Oligonucleotide microarrays in microbial diagnostics. In Encyclopedia of medical genomics and proteomics, pp. 1-8. (Fuchs J, Podda M, ed.). Marcel Dekker Inc., New York, USA.
     PDF   
  7. Loy A, Wagner M. 2004. Analyse komplexer mikrobieller Lebensgemeinschaften mit phylogenetischen Mikroarrays. BioSpektrum 6: 745-747.
  8. Loy A, Daims H, Wagner M. 2002. Activated Sludge: Molecular techniques for determining community composition. In The Encyclopedia of Environmental Microbiology, pp. 26-43. (Bitton G, ed.). Wiley, New York .
     PDF   

 
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