Biochemistry and biodiversity of marine algae and associated microbes.

Prof Frithjof Kuepper's. group focuses on the biochemistry and biodiversity of marine plants and microbes, especially in the context of pathologies, defence and stress.

We are particularly interested in oomycete pathogens and the metabolism of iodine and bromine in seaweeds, using an array of microbiological, biochemical, physical and molecular techniques.

For our studies on algal biodiversity and biogeography, we chiefly work in the Eastern Mediterranean (in particular, Greece and Cyprus), the Canadian Arctic and the South Atlantic (Falkland Islands and Ascension). Our work on this front includes scientific diving, algal culturing, and molecular biology.

The group has strong collaborative links to marine scientists in Roscoff, Greece, California and the Falkland Islands.

Current and recent projects

Current and recent projects from the Kuepper Group

  • Marine angiosperm tolerance on environmental stress: Physiological – cellular – biochemical – molecular mechanisms related to species and habitat diversity (THALIS)
  • Brown algal biodiversity and ecology in the Eastern Mediterranean Sea (TOTAL Foundation)
  • Deep-sea ecosystem functioning in a changing climate: consequences of changing sea-ice cover for Arctic benthic ecosystems (Co-PI / lead PI: U. Witte)
  • Seaweed and oomycetes biodiversity in the Canadian Marine Arctic (TOTAL Foundation)
Recent news

Recent news from our research group and our worldwide expeditions can be found on our blog.

Selected publications

Selected publications from the Kuepper Group

(as of July 2014, out of 75 ISI-listed, peer-reviewed publications in total with > 2100 citations; h-index: 26)

  • Tsiamis K, Peters AF, Shewring DM, Asensi AO, van West P, Küpper FC: Marine benthic flora of Ascension Island.- Journal of the Marine Biological Association of the UK, in press
  • Tsiamis K, Taskin E, Orfanidis S, Stavrou P, Argyrou M, Panayotidis P, Tsioli T, Cicek BA, Marcou M, Küpper FC, 2014: Checklist of seaweeds of Cyprus (Mediterranean Sea).- Botanica Marina 57(3), 153-166
  • Yang EC, Peters AF, Kawai H, Stern R, Hanyuda T, Bàrbara I, Müller DG, Strittmatter M, Prud'homme van Reine WF, Küpper FC, 2014: Ligulate Desmarestia (Desmarestiales, Phaeophyceae) revisited: D. japonica sp. nov. and D. dudresnayi differ from D. ligulata.- Journal of Phycology 50, 149-166. DOI: 10.1111/jpy.12148
  • Küpper FC, Carpenter LJ, Leblanc C, Toyama C, Uchida Y, Maskrey B, Robinson J, Verhaeghe E, Malin G, Luther III GW, Kroneck PMH, Kloareg B, Meyer-Klaucke W, Muramatsu Y, Megson IL, Potin P, Feiters MC, 2013: Speciation studies and antioxidant properties of bromine in Laminaria digitata reinforce the significance of iodine accumulation for kelps.- Journal of Experimental Botany 64 (10), 2653-2664. DOI: 10.1093/jxb/ert110
  • Strittmatter M, Gachon CMM, Müller DG, Kleinteich J, Heesch S, Tsirigoti A, Katsaros C. Kostopoulou M, Küpper FC, 2013: Intracellular eukaryotic pathogens in brown algae in the Eastern Mediterranean Sea, including LSU rRNA data for the oomycete Eurychasma dicksonii.- Diseases of Aquatic Organisms 104, 1-11. DOI: 10.3354/dao02583
  • Tsiamis K, Panayiotidis P, Salomidi M, Pavlidou A, Kleinteich J, Balanika K, Küpper FC, 2013: Macroalgal community response to re-oligotrophication: a case study from Saronikos Gulf (Eastern Mediterranean, Greece).- Marine Ecology Progress Series 472, 73-85. DOI: 10.3354/meps10060
  • Asensi AO, Küpper FC, 2012: Seasonal periodicity and reproduction of brown algae (Phaeophyta) at Puerto Deseado (Patagonia).- Botanica Marina 55, 217-228. DOI: 10.1515/bot-2012-0002
  • Grenville-Briggs L, Gachon CMM, Strittmatter M, Sterck L, Küpper FC, van West, 2011: A molecular insight into algal-oomycete warfare: cDNA analysis of Ectocarpus siliculosus infected with the basal oomycete Eurychasma dicksonii.- PLoS ONE 6(9): e24500. DOI:10.1371/journal.pone.0024500
  • Küpper FC, Feiters MC, Olofsson B, Kaiho T, Yanagida S, Zimmermann MB, Carpenter LJ, Luther III GW, Lu Z, Jonsson M, Kloo L, 2011: Commemorating two centuries of iodine research: An interdisciplinary review.- Angewandte Chemie – International Edition 50, 11598 – 11620. DOI: 10.1002/anie.201100028
  • Cock JM, Sterck L, Rouzé P, ... Küpper FC, ..., Van de Peer Y, Wincker P, 2010: The Ectocarpus genome and the independent evolution of multicellularity in brown algae.- Nature 465, 617-21. DOI: 10.1038/nature09016
  • Küpper FC, Gaquerel E, Cosse A, Adas F, Peters AF, Müller DG, Kloareg B, Salaün J-P, Potin P, 2009: Free fatty acids and methyl jasmonate trigger defence reactions in Laminaria digitata.- Plant and Cell Physiology 50(4), 789-800. DOI: 10.1093/pcp/pcp023
  • Gachon CMM, Strittmatter M, Müller DG, Kleinteich J, Küpper FC, 2009: Differential host susceptibility to the marine oomycete pathogen Eurychasma dicksonii detected by real time PCR: not all algae are equal.- Applied and Environmental Microbiology 75(2), 322-8. DOI: 10.1128/AEM.01885-08
  • Küpper FC, Carpenter LJ, McFiggans GB, Palmer CJ, Waite T, Boneberg E-M, Woitsch S, Weiller M, Abela R, Grolimund D, Potin P, Butler A, Luther III GW, Kroneck PMH, Meyer-Klaucke W, Feiters MC, 2008: Iodide accumulation provides kelp with an inorganic antioxidant impacting atmospheric chemistry.- Proceedings of the National Academy of Sciences of the USA 105(19), 6954-8. DOI: 10.1073/pnas.0709959105
  • Küpper FC, Maier I, Müller DG, Loiseaux-de Goër S, Guillou L, 2006: Phylogenetic affinities of two eukaryotic pathogens of marine macroalgae, Eurychasma dicksonii and Chytridium polysiphoniae.- Cryptogamie – Algologie 27, 165-84
  • Küpper FC, Gaquerel E, Boneberg E-M, Morath S, Salaün J-P, Potin P, 2006: Early events in the perception of lipopolysaccharides in the brown alga Laminaria digitata include an oxidative burst and activation of fatty acid oxidation cascades.- Journal of Experimental Botany 57, 1991-9. DOI: 10.1093/jxb/erj146