Univ.-Prof. Dipl.-Biol. Dr. Alexander Loy
Alexander Loy
1 - 20 out of 117
Ye, H., Borusak, S., Eberl, C., Krasenbrink, J., Weiss, A. S., Chen, S., Hanson, B. T., Hausmann, B., Herbold, C. W., Pristner, M., Zwirzitz, B., Warth, B., Pjevac, P., Schleheck, D., Stecher, B., & Loy, A. (2023). Ecophysiology and interactions of a taurine-respiring bacterium in the mouse gut. Nature Communications, 14(1), [5533]. https://doi.org/10.1038/s41467-023-41008-z




Gwak, J-H., Awala, S. I., Nguyen, N-L., Yu, W-J., Yang, H-Y., von Bergen, M., Jehmlich, N., Kits, K. D., Loy, A., Dunfield, P. F., Dahl, C., Hyun, J-H., & Rhee, S-K. (2022). Sulfur and methane oxidation by a single microorganism. Proceedings of the National Academy of Sciences of the United States of America, 119(32), [e2114799119]. https://doi.org/10.1073/pnas.2114799119

Flieder, M., Buongiorno, J., Herbold, C. W., Hausmann, B., Rattei, T., Lloyd, K. G., Loy, A., & Wasmund, K. (2021). Novel taxa of Acidobacteriota implicated in seafloor sulfur cycling. The ISME Journal, 15(11), 3159-3180. https://doi.org/10.1038/s41396-021-00992-0

Hanson, B. T., Dimitri Kits, K., Löffler, J., Burrichter, A. G., Fiedler, A., Denger, K., Frommeyer, B., Herbold, C. W., Rattei, T., Karcher, N., Segata, N., Schleheck, D., & Loy, A. (2021). Sulfoquinovose is a select nutrient of prominent bacteria and a source of hydrogen sulfide in the human gut. The ISME Journal, 15(9), 2779-2791. https://doi.org/10.1038/s41396-021-00968-0







Berg, G., Rybakova, D., Fischer, D., Cernava, T., Vergès, M-C. C., Charles, T., Chen, X., Cocolin, L., Eversole, K., Corral, G. H., Kazou, M., Kinkel, L., Lange, L., Lima, N., Loy, A., Macklin, J. A., Maguin, E., Mauchline, T., McClure, R., ... Schloter, M. (2020). Microbiome definition re-visited: old concepts and new challenges. Microbiome, 8(1), [103]. https://doi.org/10.1186/s40168-020-00875-0

Pelikan, C., Jaussi, M., Wasmund, K., Seidenkrantz, M-S., Pearce, C., Kuzyk, Z. Z. A., Herbold, C. W., Røy, H., Kjeldsen, K. U., & Loy, A. (2019). Glacial Runoff Promotes Deep Burial of Sulfur Cycling-Associated Microorganisms in Marine Sediments. Frontiers in Microbiology, 10, [2558]. https://doi.org/10.3389/fmicb.2019.02558

Colangelo-Lillis, J., Pelikan, C., Herbold, C., Altshuler, I., Loy, A., Whyte, L. G., & Wing, B. A. (2019). Diversity decoupled from sulfur isotope fractionation in a sulfate‐reducing microbial community. Geobiology, 17(6), 660-675. https://doi.org/10.1111/gbi.12356




Herp, S., Brugiroux, S., Garzetti, D., Ring, D., Jochum, L. M., Beutler, M., Eberl, C., Hussain, S., Walter, S., Gerlach, R. G., Ruscheweyh, H. J., Huson, D., Sellin, M. E., Slack, E., Hanson, B., Loy, A., Baines, J. F., Rausch, P., Basic, M., ... Stecher, B. (2019). Mucispirillum schaedleri Antagonizes Salmonella Virulence to Protect Mice against Colitis. Cell Host & Microbe, 25(5), P681-694.e8. https://doi.org/10.1016/j.chom.2019.03.004

1 - 20 out of 117

Invited Speaker: Aalborg University

Alexander Loy (Speaker)

5 Oct 2023

Activity: Talks and presentationsTalk or oral contributionScience to Science


Invited Speaker: BAS

Alexander Loy (Speaker)

20 Apr 2023

Activity: Talks and presentationsTalk or oral contributionScience to Science


Gastvortrag BAW

Alexander Loy (Speaker)

19 Apr 202321 Apr 2023

Activity: Talks and presentationsTalk or oral contributionScience to Science


Invited Speaker: NCCR 2023

Alexander Loy (Speaker)

7 Jun 2022

Activity: Talks and presentationsTalk or oral contributionScience to Science


Invited Speaker: CRC 2022

Alexander Loy (Speaker)

1 Feb 2022

Activity: Talks and presentationsTalk or oral contributionScience to Science


Invited Speaker: University Greifswald

Alexander Loy (Speaker)

23 Sep 2019

Activity: Talks and presentationsTalk or oral contributionScience to Science


Invited Speaker: University of Queensland

Alexander Loy (Speaker)

19 Jul 2019

Activity: Talks and presentationsTalk or oral contributionScience to Science


Invited Speaker: Univesity Munich

Alexander Loy (Speaker)

30 Jan 20191 Feb 2019

Activity: Talks and presentationsTalk or oral contributionScience to Science


Uncovering the secrets of Popeye's diet: New metabolic functions of the core human microbiota

Alexander Loy (Invited speaker)

5 Dec 2018

Activity: Talks and presentationsTalk or oral contributionScience to Science


Microbial life in sedimentary ecosystems of the Arctic

Kenneth Wasmund (Speaker), Claus Pelikan (Contributor), Mathias Flieder (Contributor) & Alexander Loy (Contributor)

9 Nov 2018

Activity: Talks and presentationsTalk or oral contributionScience to Science


New functions of the core human microbiota: Metabolism of a vegetarian diet compound in the gut

Alexander Loy (Invited speaker)

8 Nov 2018

Activity: Talks and presentationsTalk or oral contributionScience to Science



New human microbiome functions: How a green vegetable-derived substrate activates important commensals in the gut

Buck Timothy Hanson (Speaker) & Alexander Loy (Contributor)

Sep 2018

Activity: Talks and presentationsTalk or oral contributionScience to Science


Acidobacterial genomes recovered from Arctic marine sediments indicate the potential for various contributions to sulfur cycling

Kenneth Wasmund (Speaker), Mathias Flieder (Contributor) & Alexander Loy (Contributor)

16 Apr 2018

Activity: Talks and presentationsTalk or oral contributionScience to Science


A new source of hydrogen sulfide in the gut: Microbial co-metabolism of sulfoquinovose by the complex human intestinal microbiota

Buck Timothy Hanson (Speaker), Kerim Kits (Contributor), Jessica Löffler (Contributor), Anna Burrichter (Contributor), Benjamin Frommeyer (Contributor), Craig Herbold (Contributor), David Schleheck (Contributor) & Alexander Loy (Contributor)

Apr 2018

Activity: Talks and presentationsTalk or oral contributionScience to Science


Gut microbiota functions: A selection of limited knowledge

Alexander Loy (Invited speaker)

1 Feb 2018

Activity: Talks and presentationsTalk or oral contributionScience to Science


Physiological interactions in guts and wetlands: The role of sulfur microbes

Alexander Loy (Invited speaker)

12 Jan 2018

Activity: Talks and presentationsTalk or oral contributionScience to Science


Modern microbiome methods: Amplicon sequencing, metagenomics, metatranscriptomics, and more

Alexander Loy (Invited speaker)

3 Aug 2016

Activity: Talks and presentationsTalk or oral contributionOther



Sulfate-reducing microorganisms in wetlands - Undervalued players in carbon cycling and climate change

Alexander Loy (Invited speaker)

8 Jul 2015

Activity: Talks and presentationsTalk or oral contributionOther



The intestinal microbiome in action – revealing the functions of individual members in health and disease

Alexander Loy (Invited speaker)

14 Nov 2014

Activity: Talks and presentationsTalk or oral contributionOther


From functional gene studies to ecosystem functions: a case study of hidden sulfate-reducing microorganisms in wetlands

Alexander Loy (Invited speaker)

27 Oct 2014

Activity: Talks and presentationsTalk or oral contributionOther


Fecal microbiota transplantation for treatment of inflammatory bowel disease – do we have to curb our enthusiasm?

Alexander Loy (Invited speaker)

1 Oct 20143 Oct 2014

Activity: Talks and presentationsTalk or oral contributionOther


New single cell technologies for dietary and physiological studies in mice and men

Alexander Loy (Invited speaker)

1 Oct 20143 Oct 2014

Activity: Talks and presentationsTalk or oral contributionOther



Go with the flow: Endospores of thermophilic bacteria as tracers of microbial dispersal by ocean currents

Alexander Loy (Invited speaker)

11 Dec 2013

Activity: Talks and presentationsTalk or oral contributionOther



Microbial individuality in the intestinal wilderness of men and mice

Alexander Loy (Invited speaker)

24 Apr 2013

Activity: Talks and presentationsTalk or oral contributionOther



Individuality matters - of microbes and man

Alexander Loy (Invited speaker)

14 Jun 2012

Activity: Talks and presentationsTalk or oral contributionOther


Ecology of sulfate-reducing microorganisms in wetlands - fame-less actors in carbon cycling and climate change

Alexander Loy (Invited speaker)

15 Apr 2012

Activity: Talks and presentationsTalk or oral contributionOther



Eating heavy: isotope-labeling approaches for studying the function of uncultivated microorganisms in the environment.

Alexander Loy (Keynote speaker)

15 May 2011

Activity: Talks and presentationsTalk or oral contributionOther


Molecular biology sulfate reduction in peatlands - a rare microorganism is involved in a process that mitigates global warming.

Alexander Loy (Invited speaker)

27 Sep 2010

Activity: Talks and presentationsTalk or oral contributionOther


AN ANCIENT SYMBIOSIS OF THIOTROPHIC ALPHAPROTEOBACTERIA AND MARINE CATENULID FLATWORMS

Alexander Loy (Contributor)

22 Aug 2010

Activity: Talks and presentationsTalk or oral contributionOther


Sulfate reduction in peatlands - Does a rare keystone microorganism drive a process that mitigates global warming?

Alexander Loy (Keynote speaker)

13 Jun 2010

Activity: Talks and presentationsTalk or oral contributionOther


Tracking down sulphate-reducing microorganisms by molecular and isotope-labelling techniques.

Alexander Loy (Invited speaker)

2 May 2010

Activity: Talks and presentationsTalk or oral contributionOther


Sulfate reduction in peatlands: Does a 'rare biospere' microorganism do the job!?

Alexander Loy (Invited speaker)

16 Mar 2010

Activity: Talks and presentationsTalk or oral contributionOther


On the opportunities and challenges of diagnosing sulfate-reducing microorganisms

Alexander Loy (Invited speaker)

17 Jun 200919 Jun 2009

Activity: Talks and presentationsTalk or oral contributionOther


Evolution and ecology of sulfur microorganisms: Hidden players in a well known biogeochemical cycle

Alexander Loy (Invited speaker)

26 Nov 2008

Activity: Talks and presentationsTalk or oral contributionOther


Evolution and ecology of sulfur cycle microorganisms. : Evolution and ecology of sulfur cycle microorganisms.

Alexander Loy (Invited speaker)

30 Oct 2008

Activity: Talks and presentationsTalk or oral contributionOther






Analyzing microbes after their last meal: Raman microspectroscopy of isotope-labeled cells and nucleic acids.

Alexander Loy (Invited speaker)

7 Apr 2008

Activity: Talks and presentationsTalk or oral contributionOther



Evolution and ecology of sulfur microbes: Sulfite reductase as evolutionary key to a life with sulfur?

Alexander Loy (Invited speaker)

10 Jan 2008

Activity: Talks and presentationsTalk or oral contributionOther


The "last meal" of uncultivated microbes: Microarray and single cell tools for structure-function analysis of polymicrobial communities.

Alexander Loy (Invited speaker)

21 Nov 2007

Activity: Talks and presentationsTalk or oral contributionOther


Deciphering "Who is doing what in complex microbial communities?" with DNA microarrays

Alexander Loy (Invited speaker)

9 Jun 2007

Activity: Talks and presentationsTalk or oral contributionOther


Microbial ecology of sulfur cycling: A molecular perspective

Alexander Loy (Invited speaker)

31 Oct 2006

Activity: Talks and presentationsTalk or oral contributionOther


Microbial ecology of sulfur cycling: The hidden diversity

Alexander Loy (Invited speaker)

12 Oct 2006

Activity: Talks and presentationsTalk or oral contributionOther


From PhyloChips to Isotope Arrays - structure and function of microbial communities at one fell swoop

Alexander Loy (Invited speaker)

20 Aug 2006

Activity: Talks and presentationsTalk or oral contributionOther


Ecology and evolutionary history of sulfate-reducing prokaryotes

Alexander Loy (Invited speaker)

29 Jun 2006

Activity: Talks and presentationsTalk or oral contributionOther


Functional probing of microbial communities with rRNA-targeted oligonucleotide microarrays

Alexander Loy (Invited speaker)

8 Jun 2006

Activity: Talks and presentationsTalk or oral contributionOther


New insights in the ecology of sulfur cycling via microarrays and environmental genomics

Alexander Loy (Invited speaker)

2 Apr 2006

Activity: Talks and presentationsTalk or oral contributionOther


Exploring the composition and ecophysiology of microbial communities using rRNA-targeted oligonucleotide microarrays

Alexander Loy (Invited speaker)

24 Jan 2006

Activity: Talks and presentationsTalk or oral contributionOther


On PhyloChips and Isotope Arrays: Problems and Solutions

Alexander Loy (Invited speaker)

13 Jan 2006

Activity: Talks and presentationsTalk or oral contributionOther


Isotopic labeling and PhyloChips: Exploring ecophysiology of microbial communities.

Alexander Loy (Invited speaker)

29 Nov 2005

Activity: Talks and presentationsTalk or oral contributionOther


Beyond the use of phylogenetic microarrays for highly parallel microbial diversity analysis - the Isotope Array approach.

Alexander Loy (Invited speaker)

19 Sep 2005

Activity: Talks and presentationsTalk or oral contributionOther


Simultaneous analysis of microbial community composition and function by rRNA-targeted oligonucleotide microarrays.

Alexander Loy (Invited speaker)

18 Mar 2005

Activity: Talks and presentationsTalk or oral contributionOther


In silico design and evaluation of oligonucleotide microarray probes.

Alexander Loy (Invited speaker)

28 Oct 2004

Activity: Talks and presentationsTalk or oral contributionOther



Ribosomal RNA-targeted oligonucleotide microarrays (PhyloChips) for rapid biodiversity screening: Microbial community structure at a glance

Alexander Loy (Invited speaker)

25 Jun 2004

Activity: Talks and presentationsTalk or oral contributionOther



Mikroarrays und funktionelle Gene zur Analyse der mikrobiellen Biodiversität in Böden.

Alexander Loy (Speaker)

29 Sep 2003

Activity: Talks and presentationsTalk or oral contributionOther



Assessing diversity of sulfate-reducing prokaryotes - combined 16S rRNA gene and dsrAB approach.

Alexander Loy (Speaker)

14 May 2002

Activity: Talks and presentationsTalk or oral contributionOther





The wetland sulfur microbiome

Loy, A. & Wagner, C.

1/01/1931/12/22

Project: Research funding



Physiol. Inter. zw. Salmonella

Loy, A., Holzleitner, N. & Urbanic, B.

1/08/1631/07/21

Project: Research funding


Missing links in the sulfur cycle of marine sediments

Wasmund, K., Loy, A., Urbanic, B. & Holzleitner, N.

1/07/1630/09/20

Project: Research funding


NutriBiota

Loy, A. & Berry, D.

1/05/1331/01/17

Project: Research funding


Kalte mikrobielle Mehrheit

Loy, A., Holzleitner, N. & Urbanic, B.

5/10/1231/03/18

Project: Research funding


Ökophysiologie eines Vertreters

Loy, A.

30/09/1029/09/13

Project: Research funding


Sulfatreduzierer

Loy, A.

1/07/075/03/13

Project: Research funding


Unkultiv.sulfatred.Prokaryoten

Loy, A.

1/02/061/04/10

Project: Research funding


Biodiversity of Microbial Communities

Wagner, M. & Loy, A.

1/04/041/04/06

Project: Research funding


Department of Physiological Chemistry

Josef-Holaubek-Platz 2 (UZA II)
1090 Wien

T: +43-1-4277-91205

alexander.loy@univie.ac.at