Workgroup Aquatic Chemical Ecology
Prof. Dr. Eric von Elert
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Dr. Anke Schwarzenberger
office 0.210, internal phone: 8240
	Research Interests Molecular methods in ecology Aquatic chemical ecology Cyanobacteria-zooplankton interactions Digestive proteases in Daphnia Protease-inhibitors in Cyanobacteria Defence mechanisms in Cyanobacteria Maternal effects	Research Interests Current Research Activities Earlier Studies Selected Publications
Current research activities Adaptation of Daphnia magna to Microcystis aeruginosa During eutrophication of lakes, often cyanobacterial blooms emerge due to phosphorus input. Many cyanobacteria contain toxic compounds regarded as a defence against grazers. Besides the well known microcystins another similarly important group of cyanobacterial secondary metabolites are inhibitors of digestive proteases in Daphnia. I investigate the evolution and adaptation of Daphnia to the presence of cyanobacterial protease inhibitors. [TOP]   Selected publications Anke Schwarzenberger, Thomas Sadler & Eric von Elert (2013) Effect of nutrient limitation of cyanobacteria on protease inhibitor production and fitness of Daphnia magna. Journal of Experimental Biology in press. DOI: not yet available Anke Schwarzenberger, Sofie d'Hondt, Wim Vyverman & Eric von Elert (2013) Seasonal succession of cyanobacterial protease inhibitors and Daphnia magna genotypes in a eutrophic Swedish lake. Aquatic Sciences 75: 433-445 . DOI: 10.1007/s00027-013-0290-y Christian J. Küster, Anke Schwarzenberger & Eric von Elert (2013) Seasonal dynamics of sestonic protease inhibition: Impact on Daphnia populations. Hydrobiologia in press. DOI: 10.1007/s10750-012-1303-x Anke Schwarzenberger & Eric von Elert (2013) Cyanobacterial protease inhibitors lead to maternal transfer of increased protease gene expression in Daphnia. Oecologia 172 (1): 11-20. DOI: 10.1007/s00442-012-2479-5 Anke Schwarzenberger, Christian J. Küster & Eric von Elert (2012) Molecular mechanisms of tolerance to cyanobacterial protease inhibitors revealed by clonal differences in Daphnia magna. Molecular Ecology 21 (19): 4898-4911. DOI: 10.1111/j.1365-294X.2012.05753.x Eric von Elert, Anja Zitt & Anke Schwarzenberger (2012) Inducible tolerance to dietary protease inhibitors in Daphnia magna. Journal of Experimental Biology 215: 2051-2059. DOI: 10.1242/jeb.068742 Anke Schwarzenberger, Anja Zitt, Peter Kroth, Stefan Mueller, & Eric Von Elert (2010) Gene expression and activity of digestive proteases in Daphnia: effects of cyanobacterial protease inhibitors. BMC Physiology 10:6. DOI: 10.1186/1472-6793-10-6 (open access pdf file) Anke Schwarzenberger, Cornelius Courts & Eric von Elert (2009) Target gene approaches: Gene expression in Daphnia magna exposed topredator-borne kairomones or to microcystin-producing and microcystin-free Microcystis aeruginosa. BMC Genomics 10: 527. DOI: 10.1186/1471-2164-10-527 (open access pdf file) Anke Schwarzenberger & Eric von Elert (2008). Saisonalität der Proteasinhibitoraktivität im Seston gegenüber Daphnia magna. Tagungsbericht, Deutsche Gesellschaft für Limnologie (DGL) - Jahrestagung 2007 (Münster): 269-272. Segelbacher, Gernot, Sacher, Thomas, Schwarzenberger, Anke, Woitsch, Sonja, Bairlein, Franz & Coppack, Timothy (2008). Eight microsatellite loci characterised in the European blackbird, Turdus merula. Journal of Ornithology 149 (1): 131-133. Anke Schwarzenberger & Eric von Elert (2007). Darmproteasen von Daphnia magna: Inhibition durch Microcystis aeruginosa. Tagungsbericht, Deutsche Gesellschaft für Limnologie (DGL) - Jahrestagung 2006 (Dresden): 516-519. Contact me for reprints (replace "[at]" by "@").   [TOP]