Dr. Helge-Ansgar Giebel

Scientific interests

  • Microbial marine ecology
  • Bacterial community structure
  • Genomic analysis
  • Dynamics of free and surface-attached bacteria
  • Biogeography
  • Design and improvement of methods and experimental setups

Projects

Ecological significance, biogeography and physiology of the Roseobacter clade in pelagic systems (embedded within the Collaborative Research Centre Transregio "Roseobacter", TRR 51)

  • Genomic and physiologial analysis of Planktomarina temperata (RCA23)
  • Aerobic anoxigenic photosynthesis of roseobacters
  • Metabolic traits (substrates, AAnP, CO oxidation)

BacGeoPac: Functional diversity of the bacterial community and the geometabolom of the central and northern Pacific

  • 26.01.-27.02.2017, International scientific cruise SO254 RV Sonne, Southwest Pacific, Auckland (New Zealand) - Auckland

Publications

Djurhuus A, Mikalsen S-O, Giebel HA, Rogers A (2017) Cutting through the smoke: diversity of free-living bacteria in deep-sea hydrothermal plumes. R. Soc. Open sci. 4: 160829. http://dx.doi.org/10.1098/rsos.160829

Milici M, Vital M, Tomasch J, Badewien TH, Giebel HA, Plumeier I, Wang H, Pieper DH, Wagner-Döbler I, Simon M (2017). Diversity and community composition of particle-associated and free-living bacteria in mesopelagic and bathypelagic Southern Ocean water masses: evidence of dispersal limitation in the Bransfield strait. Limnol Oceanogr, online first.

Fischer R, Giebel HA, Ptacnik R (2017) Identity of the limiting nutrient (N vs. P) affects the competitive success of mixotrophs. Mar Ecol Prog Ser 563:51-63. doi.org/10.3354/meps11968

Giebel HA, Klotz F, Voget S, Poehlein A, Grosser K, Andreas Teske A, Brinkhoff T (2016) Draft genome sequence of the marine Rhodobacteraceae strain O3.65, cultivated from oil-polluted seawater of the Deepwater Horizon oil spill. Stand Genomic Sci. 11:81. (DOI: 10.1186/s40793-016-0201-7) pdf

Fischer R, Giebel HA, Hillebrand H, Ptacnik R. (2016) Importance of mixotrophic bacterivory can be predicted by light and loss rates. Oikos. Doi:10.1111/oik.03539

Billerbeck S, Wemheuer B, Voget S, Poehlein A, Giebel HA, Brinkhoff T, Gram L, Jeffrey WH, Daniel R, Simon M (2016) Biogeography and environmental genomics of the Roseobacter-affiliated pelagic CHAB-I-5 lineage. Nature Microbiol. Article no. 16063, DOI:10.1038/NMICROBIOL.2016.63.

Milici M, Deng ZL, Tomasch J, Decelle J, Wos-Oxley M, Wang H, Jáuregui R, Plumeier I, Giebel HA, Badewien H, Wurst M, Pieper P, Simon M, Wagner-Doebler I (2016) Co-occurrence analysis of microbial taxa in the Atlantic Ocean reveals high connectivity in the free-living bacterioplankton. Frontiers Microbiol. 7: Article 649. http://dx.doi.org/10.3389/fmicb.2016.00649

Milici M, Tomasch J, Wos-Oxley M, Decelle J, Jáuregui R, Wang H, Deng ZL, Plumeier I, Giebel HA, Badewien T, Wurst M, Pieper DH, Simon M, Wagner-Doebler I (2016) Bacterioplankton biogeography in the Atlantic Ocean: a case study of the distance-decay relationship. Frontiers Microbiol. 7: Article 590 (doi:10.3389/fmicb.2016.00590).

Milici M, Tomasch J, Wos-Oxley ML, Wang H, Jáuregui R, Camarinha-Silva A, Deng ZL, Plumeier I, Giebel HA, Wurst M, Pieper DH, Simon M, Wagner-Döbler I (2016) Low diversity of planktonic bacteria in the tropical ocean. Scientific Reports 6: 19054 (DOI: 10.1038/srep19054).

Osterholz H., Niggemann J., Giebel H.-A., Simon M. and T. Dittmar (2015). Inefficient microbial production of refractory dissolved organic matter in the ocean. Nature Communications 6: 7422. doi:10.1038/ncomms8422

Neumann, A.M., Balmonte J.P.,  Berger M., Giebel H.-A., Arnosti C., Voget S., Simon M., Brinkhoff T. and M. Wietz (2015) Different utilization of alginate and other algal polysaccharides by marine Alteromonas macleodii ecotypes. Environ Mircobiol accepted. DOI: 10.1111/1462-2920.12862

Billerbeck, S., Orchard J., Tindall B.J., Giebel H.-A., Brinkhoff T. and M. Simon (2015) Description of Octadecabacter temperatus sp. nov., isolated from the southern North Sea, emended description of the genus Octadecabacter and reclassification of Octadecabacter jejudonensis Park & Yoon, 2014 as Pseudooctadecabacter jejudonensis gen. nov., comb. nov.. Inter J System Evol Microbiol 65: 1967-1974. pdf.

Wietz, M., Wemheuer, B., Simon, H., Giebel, H.-A., Seibt, M. A., Daniel R, Brinkhoff T., and Simon M. 2015. Polysaccharides initiate distinct responses of bacterial communities from the Southern and Atlantic Ocean. Environmental Microbiology. accepted. DOI: 10.1111/1462-2920.12842

Simon H., Lipsewers Y.A., Giebel H.-A., Wiltshire K.H., Simon M. (2014) Temperature effects on aggregation during a spring diatom bloom. Limnol Oceanogr. 59 (6): 2089-2100. pdf.

Voget, S., Wemheuer B., Brinkhoff T., Vollmers J., Dietrich S., Giebel H.-A., Beardsley C., Sardemann C., Bakenhus I., Billerbeck S., Daniel R. and M. Simon (2015) Adaptation of an abundant Roseobacter RCA organism to pelagic systems revealed by genomic and transcriptomic analyses. The ISME Journal 9: 371-384. doi:10.1038/ismej.2014.134. pdf.

Giebel, H.-A., Kalhoefer D., Gahl-Janssen R., Choo Y.J., Lee K., Cho J.C., Tindall B.J., Rhiel E., Beardsley C., Aydogmus Ö.O., Voget S., Daniel R., Simon M. and Brinkhoff T (2013). Planktomarina temperata gen. nov., sp. nov., belonging to the globally distributed RCA cluster of the marine Roseobacter clade, isolated from the German Wadden Sea. Inter J System Evol Microbiol 63: 4207–4217. pdf

Wemheuer B., S. Güllert, S. Billerbeck, H.-A. Giebel, S. Voget, M. Simon, R. Daniel (2014). Impact of a phytoplankton bloom on the diversity of the active bacterial community in the southern North Sea as revealed by metatranscriptomic approaches. FEMS Micro Ecol, 87: 378-389. pdf

Sperling M., H.-A. Giebel, R. Rink, S. Grayek, J. Staneva, E. Stanev, M. Simon (2012). Differential effect of hydrographic and biogeochemical properties on SAR11 and Roseobacter RCA populations in the southern North Sea. Aquat Microb Ecol 67: 25-34. pdf

Giebel, H.-A., D. Kalhoefer, A. Lemke, S. Thole, R. Gahl-Janßen, M. Simon and T. Brinkhoff (2011). Distribution of Roseobacter RCA and SAR11 lineages in the North Sea and characteristics of an abundant RCA isolate. The ISME Journal 5: 8-19. pdf

Giebel, H.-A., T. Brinkhoff, W. Zwisler, N. Selje and M. Simon (2009). Distribution of Roseobacter RCA and SAR11 lineages and distinct bacterial communities from the subtropics to the Southern Ocean. Environmental Microbiology 11: 2164-2178. pdf

Brinkhoff, T., H.-A. Giebel and M. Simon (2008). Diversity, ecology and genomics of the Roseobacter clade: a short overview. Archives of Microbiology 189: 531-539. pdf

Presentations at national and international symposia

Giebel, H.-A., A. Schlingloff, M. Simon and T. Brinkhoff (2015) Physiologic vs. genomic features of the Roseobacter clade affiliated (RCA) cluster: What we can learn from cultivation-approaches with Planktomarina temperata. 2st EMBO conference on Aquatic Microbial Ecology (SAME14), Uppsala, Sweden, 23-28 August 2015 (poster).

Bakenhus I., H.-A. Giebel, M. Wietz and M. Simon (20015) Bacterioplankton community composition and activity patterns across a latitudinal transect from Antarctica (70°S) to the North Atlantic (47°N). 2st EMBO conference on Aquatic Microbial Ecology (SAME14), Uppsala, Sweden, 23-28 August 2015 (talk).

Simon M., S. Billerbeck, S. Voget, J. Orchard, B. Wemheuer, H.-A. Giebel, R. Daniel and T. Brinkhoff (2015) Biogeography and genomic features of a major pelagic Roseobacter clade subcluster - CHAB-I-5. 2st EMBO conference on Aquatic Microbial Ecology (SAME14), Uppsala, Sweden, 23-28 August 2015 (talk).

Neumann A.M., J.P. Balmonte, M. Berger, H.-A. Giebel, C. Arnosti, S Voget, M Simon, T. Brinkhoff and M. Wietz (2015) Different utilization of alginate and other algal polysaccharides by marine Alteromonas macleodii ecotypes. 2st EMBO conference on Aquatic Microbial Ecology (SAME14), Uppsala, Sweden, 23-28 August 2015 (poster).

Neumann, A., J. Balmonte, J., M. Berger, M., Giebel, H.-A., Arnosti, C., Brinkhoff, T., Simon, M., Wietz, M. 2015. Different utilization of alginate among marine Alteromonas macleodii
ecotypes indicate ecological speciation. Annual Conference 2015 of the Association for
General and Applied Microbiology (VAAM), 1-4 March, Marburg/Lahn, Biospektrum, ISSN 09-0867, p. 88. Poster.

Bakenhus, I., Giebel, H.-A.,Wurst, M., Beardsley, C., Simon, M., Wietz, M. 2015. Bakterioplankton biogeography and activity in the Southern Ocean with special emphasis on the Bacteriodetes. Annual Conference 2015 of the Association for General and Applied Microbiology (VAAM), 1-4 March, Marburg/Lahn, Biospektrum, ISSN 09-0867, p. 162. Poster.

Simon, M., Wemheuer, B., Meier, D., Klempert, P., Wemheuer, F., Billerbeck, S., Giebel, H.-A., Scherber, C., Daniel, R. 2015. Different environmental and biogeochemical adaptation of total active bacterioplankton communitiees across a latitudinal gradient in the North Sea. Aquatic Sciences Meeting, Aquatic Sciences: Global And Regional Perspectives - North Meets South. 22-27 February, Granada, Spain. (talk).

Fischer, R., Hillebrand, H., Giebel, H.-A., Ptacnik, R. 2015. Defining the niche of mixotrophic bacterivores. Aquatic Sciences Meeting, Aquatic Sciences: Global And Regional Perspectives - North Meets South. 22-27 February, Granada, Spain. (talk).

Osterholz, H., G. Singer, B. Wemheuer, R. Daniel, J. Niggeman, H.-A. Giebel, M. Simon, T. Dittmar (2014). Deciphering associations between dissolved organic molecules and bacteria in natural marine system. International Workshop of Geo-metabolomics: first steps towards a systems biology understanding of organic matter cycling in aquatic systems, HWK Delmenhorst, Germany, November 24-28. (talk).

Wietz, M., B. Wemheuer, H. Simon, H.-A. Giebel, S. Seibt, R. Daniel, M. Mitulla, A. Neumann, T. Brinkhoff and M. Simon. 2014. Community-level, physiological and genomic characterization of polysaccharide degradation by bacterioplankton from the Southern and Atlantic Oceans.. 15th Symposium of the International Society for Microbial Ecology (ISME), Seoul, South Korea, August 24-29. (DOI:10.13140/2.1.4778.7527, book of abstract, talk)

Simon, M., B. Wemheuer, H.-A. Giebel, S. Billerbeck, M. Wurst, M. Seibt, J. Niggemann, T. Dittmar, S. Voget, R. Daniel. 2014. Distinct biogeographic patterns of the total and potentially active bacterioplankton communities across a 110° latitude gradient in the Southern and Atlantic Ocean. 15th Symposium of the International Society for Microbial Ecology (ISME), Seoul, South Korea, August 24-29. (book of abstract, talk)

Wietz, M., B. Wemheuer, H. Simon, H.-A. Giebel, S. Seibt, R. Daniel, T. Brinkhoff, and M. Simon. 2014. Community level, physiological and genomic characterization of polysaccharide degradation by bacterioplankton from the Southern and Atlantic Ocean. Gordon Research Conferences (GRC), Marine Microbes: Small Microbes, Big Data. Waltham, MA, USA, June 22-27 (book of abstract, poster).

Giebel, H.-A., B. Wemheuer, S. Voget, R. Daniel and M. Simon. 2014. The abundant Roseobacter clade affiliated (RCA) cluster: Metabolic traits of its model organism Planktomarina temperata RCA23. 17th Ocean Sciences Meeting (OSM, co-sponsored by the American Society of Limnology and Oceanography (ASLO)), Honolulu, Hawaii, USA, February 23-28. (book of abstracts, p. 118, poster).

Simon, M., B. Wemheuer, H.-A. Giebel, S. Billerbeck, M. Wurst, R. Daniel. 2014. Highly productive and active bacterioplankton communities in the southern ocean in austral fall. 17th Ocean Sciences Meeting (OSM, co-sponsored by the American Society of Limnology and Oceanography (ASLO)), Honolulu, Hawaii, USA, February 23-28. (book of abstracts, p. 79, talk).

Busch, M., F. Peiffer, Giebel, H.-A., H. Hillebrand, S. Moorthi. 2014. Effects of nutrient concentrations, phagotrophic feeding and alleopathy on bloom dynamics of potentially harmful dinoflagelates. 17th Ocean Sciences Meeting (OSM, co-sponsored by the American Society of Limnology and Oceanography (ASLO)), Honolulu, Hawaii, USA, February 23-28. (book of abstracts, p. 140, talk).

Giebel, H.-A., B. Wemheuer, S. Voget and M. Simon. 2013. Benefits of aerobic anoxygenic photosynthesis for the Roseobacter clade affiliated (RCA) cluster. 1st EMBO conference on Aquatic Microbial Ecology (SAME13), Stresa, Italy, 8-13 September 2013. (book of abstracts, p. 219, poster).

Billerbeck, S., B. Wemheuer, H.-A. Giebel, R. Daniel and M. Simon. 2013. Distribution and abundance of clusters of the Roseobacter clade in the North Sea. 1st EMBO conference on Aquatic Microbial Ecology (SAME13), Stresa, Italy, 8-13 September 2013. (book of abstracts, p. 225, poster).

Simon M, B. Wemheuer, H.-A. Giebel M., T. Brinkhoff, C. Beardsley, I. Bakenhus, R. Daniel and S. Voget. 2013. Major role of photoheterotrophic and CO oxidizing Roseobacter RCA population in the ocean. 1st EMBO conference on Aquatic Microbial Ecology (SAME13), Stresa, Italy, 8-13 September 2013. (book of abstracts, p. 69, talk).

Giebel, H-A. et al. (2013). Benefits of aerobic anoxygenic photosynthesis for growth of Cand. Planktomarina temperata of the Roseobacter clade affiliated (RCA) cluster. International Symposium: Research highlights and reports of the first funding period of TRR 51, HWK Delmenhorst, Germany, 24-26 June 2013, (talk).

Giebel, H.-A., B. Wemheuer, S. Voget, and M. Simon. 2013. Turn on the lights: Benefits of aerobic anoxygenic photosynthesis for the Roseobacter clade affiliated (RCA) cluster. Annual Meeting of the German Society of General and Applied Microbiology (VAAM) together with KNVM, Bremen, Germany, May 10-13. (book of abstracts, p. 176, poster).

Simon, M., T. Brinkhoff, B. Wemheuer, H.-A. Giebel, C. Beardsley, I. Bakenhus, R. Daniel and S. Voget. 2013. Major role of photoheterotrophic and CO oxidizing Roseobacter RCA population in the ocean. Annual Meeting of the German Society of General and Applied Microbiology (VAAM) together with KNVM, Bremen, Germany, May 10-13. (book of abstracts, p. 163, talk).

Billerbeck, S., H.-A. Giebel, T. Brinkhoff, C. Beardsley, L. Gram, W.H. Jeffrey and M. Simon. 2013. Distribution of clusters of the Roseobacter clade in global oceans. Annual Meeting of the German Society of General and Applied Microbiology (VAAM) together with KNVM, Bremen, Germany, May 10-13. (book of abstracts, p. 164, talk).

Giebel, H.-A., B. Wemheuer, S. Voget, and M. Simon. 2012. The Roseobacter clade affiliated (RCA) cluster: Do these microbes conduct aerobic anoxygenic photosynthesis? 14th Symposium of the International Society for Microbial Ecology (ISME), The power of the small, Copenhagen, Denmark, August 19-24. (book of abstracts, poster).

Simon, M., T. Brinkhoff, B. Wemheuer, H.-A. Giebel, C. Beardsley, I. Bakenhus, R. Daniel and S. Voget. 2012. Evidence for ocean-wide distribution of an abundant photoheterotrophic and CO oxidizing RCA roseobacter population in the North Sea and North Atlantic. 14th Symposium of the International Society for Microbial Ecology (ISME), The power of the small, Copenhagen, Denmark, August 19-24. (book of abstract, talk).

Simon, M., B. Wemheuer, H.-A. Giebel, T. Brinkhoff, C. Beardsley, R. Daniel and S. Voget. 2012. Genomic features and distribution of an abundant photoheterotrophic and CO oxidizing RCA isolate in the North Sea and North Atlantic. Gordon Research Conferences (GRC), Marine Microbes, Lucca (Barga) Italy, June 24-29. (book of abstract, poster).

Billlerbeck, S., H.-A. Giebel  and M. Simon. 2012. Occurence of Roseobacter subclusters in the North Sea. Gordon Research Conferences (GRC), Marine Microbes, Lucca (Barga) Italy, June 24-29. (book of abstract, poster).

Giebel, H.-A., B. Wemheuer, S. Voget, and M. Simon. 2011. First hints for conducting aerobic anoxygenic photosynthesis by bacteria of the Roseobacter clade affiliated (RCA) cluster. 12th Symposium on Aquatic Microbial Ecology (SAME), Rostock-Warnemünde, Germany, August 28-September 2. (book of abstracts, p. 225, poster).

Billerbeck, S., H.-A. Giebel, and M. Simon. 2011. Occurrence of Roseobacter subclusters in the German Bight of the North Sea. 12th Symposium on Aquatic Microbial Ecology (SAME), Rostock-Warnemünde, Germany, August 28-September 2. (book of abstracts, p. 138, poster).

Wurst, M., E. Killias, H.-A. Giebel, E.-M. Nothig, K. Metfies, and A. Engel. 2011. Microbial activities, dynamics and diversity in a changing Arctic Ocean (Fram Strait). 12th Symposium on Aquatic Microbial Ecology (SAME), Rostock-Warnemünde, Germany, August 28-September 2. (book of abstracts, p. 123, poster).

Simon, M., S. Hahnke, H.-A. Giebel, S. Simon, H. Osterholz, and T. Brinkhoff. 2011. Physiology and interactions of phytoplankton-assosiated roseobacters. 12th Symposium on Aquatic Microbial Ecology (SAME), Rostock-Warnemünde, Germany, August 28-September 2. (book of abstracts, p. 113, talk).

Billerbeck, S., H.-A. Giebel and M. Simon. 2011. Occurrence of Roseobacter subclusters in the German Bight of the North Sea. Annual Meeting of the German Society of General and Applied Microbiology (VAAM), Karlsruhe, Germany, April 3-6. (book of abstracts, p. 110, poster)

Simon, M., Giebel, H.-A., Voget, S., Kalhoefer, D., Daniel, R. and T. Brinkhoff. 2010. The Roseobacter RCA cluster in the North Sea - population dynamics, physiological and genomic properties. 13th Symposium of the International Society for Microbial Ecology (ISME), Stewards of a changing planet, Seattle, WA, USA, August 22-27. (book of abstracts, poster)

Giebel, H.-A., D. Kalhoefer, S. Voget, T. Brinkhoff and M. Simon. 2010. Distribution of Roseobacter RCA and SAR11 lineages in the Southern Ocean and North Sea and characteristics of an abundant RCA isolate. Gordon Research Conferences (GRC), Marine Microbes: From Genes To Global Cycles, Tilton, NH, USA, July 4-9. (book of abstracts, poster).

Giebel, H.-A., D. Kalhoefer, H. Osterholz, S. Voget, T. Brinkhoff and M. Simon. 2010. The Roseobacter clade affiliated (RCA) cluster: Its occurence, diversity and potential significance in marine habitats. Transregional Collaborative Research Center (TRR-51) Kick-off Symposium: Ecology, Physiology and Molecular Biology of the Roseobacter clade: Towards a Systems Biology Understanding of a Globally Important Clade of Marine Bacteria, Delmenhorst, Germany, June 13-15. (book of abstracts, talk).

Hahnke, S., H.-A. Giebel, M. Sperling, H. Osterholz, M. Simon and T. Brinkhoff. 2010. Physiology and biogeography of phytoplankton-associated roseobacters. Transregional Collaborative Research Center (TRR-51) Kick-off Symposium: Ecology, Physiology and Molecular Biology of the Roseobacter clade: Towards a Systems Biology Understanding of a Globally Important Clade of Marine Bacteria, Delmenhorst, Germany, June 13-15. (book of abstracts, talk).

Giebel, H.-A., D. Kalhoefer, H. Osterholz, S. Voget, T. Brinkhoff and M. Simon. 2010. The Roseobacter clade affiliated (RCA) cluster: Its occurence, diversity and potential significance. International workshop: The microbial view of marine biogeochemical cycles, Banyuls-sur-Mer, France, May 19-21. (book of abstracts, talk).

Simon, M., S. Hahnke, H.-A. Giebel, H. Osterholz and T. Brinkhoff. 2010. Drivers of organic matter turnover in the sea - some examples from the Roseobacter clade. International workshop: The microbial view of marine biogeochemical cycles, Banyuls-sur-Mer, France, May 19-21. (book of abstracts, talk).

Giebel, H.-A., R. Gahl-Janßen, D. Kalhoefer, M. Simon and T. Brinkhoff. 2009. Distribution and characterisation of bacteria of the Roseobacter-clade-affiliated (RCA) cluster. Federation on European Microbiological Societies (FEMS), Göteborg, Sweden, June 27-July 3. (book of abstracts, talk).

Giebel, H.-A., M. Sperling, T. Brinkhoff, B. Rink, M. Grayek, J. Staneva, E. Stanev and M. Simon. 2009. Hydrographic control of SAR11 and RCA dynamics in the coastal North Sea. ASLO Aquatic Science Meeting 2009, Nice, France, January 25-30. (book of abstracts, talk)

Giebel, H.-A., T. Brinkhoff and M. Simon. 2008. Regional preferences of the RCA (Roseobacter clade affiliated) cluster and the SAR11 clade: Southern Ocean vs. temperate seas. 2008 Ocean Science Meeting (co-sponsored by the American Society of Limnology and Oceanography (ASLO)), Orlando, Florida, USA, March 2-7. (book of abstracts, poster)

Giebel, H.-A., T. Brinkhoff, Y.-J. Choo, J.-C. Cho and M. Simon. 2007. The RCA (Roseobacter clade affiliated) cluster: Distribution, abundance, relative significance as compared to the SAR11 clade in the Southern Ocean, and physiological characteristics.10th Symposium on Aquatic Microbial Ecology (SAME), Faro, Portugal, September 2-7. (book of abstracts, p. 99, poster)

Giebel, H.-A., T. Brinkhoff, and M. Simon. 2006. Distribution and abundance of the RCA (Roseobacter clade affiliated) cluster and the SAR11 clade in the Southern Ocean and the North Sea. 11th Symposium of the International Society for Microbial Ecology (ISME), Vienna, Austria, August 20-25. (book of abstracts, p. 203, poster)

Giebel, H.-A., T. Brinkhoff, and M. Simon. 2005. The RCA (Roseobacter Clade Affiliated) cluster: Its distribution, diversity and abundance in the Southern Ocean and North Sea. Annual Meeting of the German Society of General and Applied Microbiology (VAAM), Jena, Germany, March 19-22. (book of abstracts, p. 150, poster)

 

Dr. HELGE-ANSGAR GIEBEL

University of Oldenburg
Institute for Chemistry and Biology
of the Marine Environment (ICBM)
Biology of geological processes
26111 Oldenburg
Germany

E-Mail: giebel[at]icbm.de
Tel.: +49 - 441 - 798 - 3416

@ StudIP