Prof. Dr. Steffen Harzsch

Zoologisches Institut und Museum
Cytologie und Evolutionsbiologie

Soldmannstr. 23
Haus 6.1
17489 Greifswald

Tel.: +49 (0)3834 420 4124
Fax: +49 (0)3834 420 4067
steffen.harzsch(at)uni-greifswald(dot)de

Research Interests / CV

I obtained my PhD in 1995 from the University of Bielefeld/Germany with a thesis on the development of the nervous system in zoea and megalopa larvae of Hyas araneus and Carcinus maenas tutored by Ralph Dawirs, an expert in larval ecophysiology. I did much of the experimental work for my thesis in the lab of Klaus Anger at the Biologische Anstalt in Helgoland. During a postdoctoral period in Barbara Beltz’s lab at Wellesley College/Massachusetts I worked on embryonic neurogenesis in the brain, ventral nerve cord and visual system of the American lobster with immunohistochemical methods, fluorescence and confocal laser-scan microscopy and with mitosis markers. I then moved to the University of Ulm/Germany where I was hosted by Dieter Waloszek (Dept. Biosystematic Documentation), a renowned crustacean paleaeontologist, and Harald Wolf (Neurobiology) an arthropod neurobiologist. In Ulm, I expanded my studies to comparative developmental studies (“Evo/Devo”) on the nervous system of e.g. Artemia salina, Triops cancriformis, Leptestheria dahalacensis and the parthenogenetic marbled crayfish, but also to other arthropod taxa such as Limulus polyphemus (with Barbara Battelle at the Whitney Lab, Florida), scorpions (with Harald Wolf) and myriapods. In these years, I promoted the discipline “neurophylogeny” (the term being coined by Dorothy Paul), that is a synthesis of neurobiological studies and phylogenetic aspects, much fueled by my hosts which as experts in paleontology versus neurobiology inspired my multidisciplinary approach. Since Ulm, much of my research is centered around the question “What can structure and development of the arthropod nervous system tell us about arthropod phylogeny?”.
I obtained my habilitation in 2001 and continued to work in Ulm on a Heisenberg stipend by the Deutsche Forschungsgemeinschaft. A study on neurophylogeny of remipede crustaceans together with Martin Fanenbruck and Wolfgang Waegele brought about a new hypothesis on these animal’s phylogenetic affinities. Side projects concerned muscle development in lobster and isopod embryos.

In 2006, I moved to Bill Hansson’s group “Evolutionary Neuroethology” at the Max Planck Institute for Chemical Ecology in Jena/Germany as group leader in neuroanatomy. Bill is primarily interested in the evolution of arthropod olfactory systems and his group applies a broad spectrum of methods from immunohistochemistry, imaging, 3D reconstruction across molecular methods to neurophysiology and behavioral essays. My work in Jena focused on the crustacean olfactory system during the evolutionary transition from sea to land. To that that end, I compared the central olfactory pathway between marine and terrestrial isopods, marine and terrestrial brachyurans, and, most notably, marine and terrestrial anomurans. In the course of these studies I had the chance to work on the giant robber crab Birgus latro on Christmas Island/Indian Ocean. I was not only responsible for studying the brain structure of this remarkable beast but also coordinated a telemetric study on these animals’ behavior using GPS transponders. I will be on Christmas Island again December 2010 with new GPS tags to study olfactory driven behaviors and migrations of these animals!

In 2008, I obtained tenure as professor in Cytology and Evolutionary Biology at the Zoological Institute of the University of Greifswald/Germany, a quaint small town at the Baltic coast with a university that goes back to 1456. Although the neighboring University Rostock is some twenty years older, I maintain a fruitful collaboration with Stefan Richter’s group in Rostock. Greifswald is also strategically well situated for interactions with other carcinologists such as Gerhard Scholtz’ group in Berlin or Jens Hoeg’s lab in Copenhagen as well as colleagues e.g. in Lund, Stockholm and Helsinki. We are also actively establishing scientific contacts to Poland (Stettin, Posznan, Warsaw) and further East.

My department uses methods such as immunoflourescence, confocal laser-scan microscopy, 3D reconstruction (Amira, Imaris) TEM and SEM to analyze the nervous systems of crustaceans (currently e.g. Nebalia bipes, Saduria entomon, Coenobita clypeatus, more Birgus) but also of myriapods (centipedes and millipedes) in an evolutionary context. We also try to integrate ethological aspects wherever possible and to that end maintain a strong collaboration with Bill Hansson’s group at the MPI in Jena.

Publications
2018
Publikationen
  • Wittfoth C, Harzsch S (provisionally accepted) Adult neurogenesis in the central olfactory pathway of dendrobranchiate and caridean shrimps: new insights into the evolution of the deutocerebral proliferative system in reptant decapods. Developmental Neurobiology
  • Bracke A, Schäfer S, von Bohlen und Halbach V, Klempin F, Bente K, Bracke K, Staar D, van den Brandt J, Harzsch S, Bader M, Wenzel UO, Peters J, von Bohlen und Halbach, O. (accepted) ATP6AP2 over-expression causes morphological alterations in the hippocampus and in hippocampus-related behaviour. Brain Structure and Function
  • Harzsch S, Krieger J (accepted) Crustacean olfactory systems: a comparative review and a crustacean perspective on insect olfactory systems. Progress in Neurobiology. OnlineFirst 10.1016/j.pneurobio.2017.11.005
Buchbeiträge
  • Jirikowski G., Vogt G., Charmantier-Daures M., Charmantier G., Harzsch S (accepted) Chapter 3: Organogenesis. In: K. Anger, S. Harzsch, and M. Thiel, editors. The Natural History of the Crustacea, Volume 7: Developmental Biology and Larval Ecology. Oxford University Press, New York, USA
2017
Publikationen
  • Schmelzle S, Heethoff M, Heuveline V, Lösel P, Becker J, Beckmann F, Schluenzen F, Hammel JU, Kopmann A, Mexner W, Vogelgesang M, Jerome NT, Betz O, Beutel R, Wipfler B, Blanke A, Harzsch S, Hörnig MK, Baumbach T, van de Kamp T (2017). The NOVA project: maximizing beam time efficiency through synergistic analyses of SRμCT data. Proc. SPIE 10391, Developments in X-Ray Tomography XI, 103910P; doi: 10.1117/12.2275959; dx.doi.org/10.1117/12.2275959
  • Meth R, Wittfoth C, Harzsch S (2017) Brain architecture of the Pacific White Shrimp Penaeus vannamei  Boone, 1931 (Malacostraca, Dendrobranchiata): correspondence of brain structure and sensory input? Cell and Tissue Research 369(2): 255–271.
  • Steinhoff POM*, Sombke A*, Liedtke J, Schneider JM, Harzsch S, Uhl G. (2017) The synganglion of the jumping spider Marpissa muscosa (Arachnida: Salticidae): insights from histology, immunohistochemistry and microCT analysis. Arthropod Structure & Development 46(2): 156-170. *shared first authorship
2016
Publikationen
  • Audo D, Haug JT, Haug C, Charbonnier S, Schweigert G, Müller CHG, Harzsch S (2016) On the sighted ancestry of blindness - exceptionally preserved eyes of Mesozoic polychelidan lobsters. Zoological Letters 2:13.
  • Harzsch S, von Bohlen und Hallbach O. (2016) A possible role for the immune system in adult neurogenesis: new insights from an invertebrate model. Zoology 119(2):153-157.
  • Hörnig MK, Sombke A, Haug C, Harzsch S, Haug JT (2016). What nymphal morphology can tell us about parental investment - a group of cockroach hatchlings in Baltic amber documented by a multi-method approach. Palaeontologia Electronica 19.1.6A.
  • Krieger J, Drew MM, Hansson BS, Harzsch S (2016) Notes on the foraging strategies of the Giant Robber Crab Birgus latro (Anomala) on Christmas Island: Evidence for active predation on Red Crabs Gecarcoidea natalis (Brachyura). Zoological Studies 55:6.
Buchbeiträge
  • Harzsch S, Perez Y, Müller CHG (2016) Chaetognatha. In: Schmidt-Rhaesa A, Harzsch S, Purschke G. (Eds.). Structure and Evolution of Invertebrate Nervous Systems. Oxford University Press, pp. 652-664.
  • Batelle BA, Sombke A, Harzsch S (2016) Xiphosura. In. Schmidt-Rhaesa A, Harzsch S, Purschke G. (Eds.) Structure and Evolution of Invertebrate Nervous Systems. Oxford University Press, pp. 428-442.
  • Stemme T, Harzsch S (2016) Remipedia. In: A. Schmidt-Rhaesa, S. Harzsch, G. Purschke (Eds.). Structure and Evolution of Invertebrate nervous Systems. , Oxford University Press, pp. 522-528.
  • Lehmann D, Melzer RR, Hörnig MK, Michalik P, Sombke A, Harzsch S (2016) Arachnida - excl. Scorpiones. In: A. Schmidt-Rhaesa, S. Harzsch, G. Purschke (Eds.). Structure and Evolution of Invertebrate nervous Systems. , Oxford University Press, pp. 453-477.
2015
Publikationen
  • Krieger J*, Braun P*, Rivera NT, Schubart CD, Müller CHG, Harzsch S (2015) Comparative analyses of olfactory systems in terrestrial crabs (Brachyura): Evidence for aerial olfaction?. PeerJ 3: e1433 *shared first authorship
  • Tuchina O, Koczan S, Harzsch S, Rybak J, Wolff G, Strausfeld NJ, Hansson BS (2015) Central projections of antennular chemosensory and mechanosensory afferents in the brain of the terrestrial hermit crab (Coenobita clypeatus; Coenobitidae, Anomura). Frontiers in Neuroanatomy 9:94.
  • Kenning M, Lehmann P, Lindström M, Harzsch S (2015) Heading which way? Y-maze chemical assays – not all crustaceans are alike. Helogoland Marine Research. Download via www.springerlink.com
  • Grunow B, Kirchhoff T, Lange T, Moritz T, Harzsch S (in press) Histochemistry on vibratome sections of fish tissue: a comparison of fixation and embedding methods. Aquatic Biology. doi 10.3354/ab00624.
  • Sombke A, Harzsch S (2015) Immunolocalization of histamine in the optic neuropils of Scutigera coleoptrata (Myriapoda: Chilopoda) reveals the basal organization of visual systems in Mandibulata. Neuroscience Letters 594: 111-116.
  • Sombke A, Lipke E, Michalik P, Uhl G, Harzsch S (2015) Potential and limitations of X-ray micro-computed tomography in arthropod neuroanatomy – a methodological and comparative survey. The Journal of Comparative Neurology 523(8): 1281-1295. Open Access
  • Kress T, Harzsch S, Dircksen H (2015) Neuroanatomy of the optic ganglia and central brain of the water flea Daphnia magna (Crustacea, Cladocera). Cell and Tissue Research: DOI 10.1007/s00441-015-2279-4.
Buchbeiträge
  • Harzsch S , Krieger J, Faulkes Z (2015) Astacida. In: A Wanninger (ed.). Evolutionary Developmental Biology of Invertebrates, Springer, pp: 101-152.
  • Harzsch S, Müller CHG, Perez Y (2015) Chaetognatha. In: A Wanninger (ed.). Evolutionary Developmental Biology of Invertebrates, Springer, pp: 215-240.
2014
Publikationen
  • Ito K, Shinomiya K, Ito M, Armstrong JD, Boyan G, Hartenstein V, Harzsch S, Heisenberg M, Homberg U, Jenett A, Keshishian H, Restifo LL, Rössler W, Simpson JH, Strausfeld NJ, Strauss R, Vosshall LB, Insect Brain Name Working Group (2014) A Systematic Nomenclature for the Insect Brain. Neuron 81(4): 755-765.
  • Müller CHG; Rieger V, Perez Y & Harzsch S (2014). Immunohistochemical and ultrastructural studies on ciliary sense organs of arrow worms (Chaetognatha). Zoomorphology 133:167-189.
Buchbeiträge
  • Perez Y, Müller C, Harzsch S (2014) The Chaetognatha: an anarchistic taxon between Protostomia and Deuterostomiea. In: Wägele JW, Bartholomaeus TW, Misof B (Eds.). Deep metazoan phylogeny: The backbone of the tree of life: New insights from analyses of molecules, morphology, and theory of data analysis. pp: 49-78, Walter de Gruyter, Berlin.
  • Sandeman D, Kenning M, Harzsch S (2014) Adaptive trends in malacostracan brain form and function related to behaviour. In: Derby C and Thiel M (Eds.) Crustacean Nervous System and their Control of Behaviour. The Natural History of the Crustacea. Vol. 3. pp: 11-48, Oxford University Press.
2013
Publikationen
  • Kenning M, Harzsch S (2013) Brain anatomy of the marine isopod Saduria entomon Linnaeus, 1758 (Valvifera, Isopoda) with special emphasis on the olfactory pathway. Frontiers in Neuroanatomy. Open Access
  • Zieger E, Bräunig P, Harzsch S (2013): A developmental study of serotonin-immunoreactive neurons in the embryonic brain of the Marbled Crayfish and the Migratory Locust: evidence for a homologous protocerebral group of neurons. Arthropod Structure & Development. 42(6): 507-520.
  • Stemme T, Iliffe T, von Reumont BM, Koenemann S, Harzsch S, Bicker G (in press) Serotonin-immunoreactive neurons in the ventral nerve cord of Remipedia (Crustacea): Support for a sister group relationship of Remipedia and Hexapoda? BMC Evolutionary Biology 13:119
  • Perez Y, Rieger V, Martin E, Müller C, Harzsch S (2013) Neurogenesis in an early protostome relative: progenitor cells in the ventral nerve centre of chaetognath hatchlings are arranged in a highly organized geometrical pattern. Journal of Experimental Zoology Part B: Molecular and Developmental Evolution. 320(3):179-193.
  • Kenning M, Müller C, Wirkner CS, Harzsch S (2013) The Malacostraca (Crustacea) from a neurophylogenetic perspective: new insights from brain architecture in Nebalia herbstii Leach, 1814 (Leptostraca, Phyllocarida). Zoologischer Anzeiger 252: 319-336.
Buchbeiträge
  • Loesel R, Wolf H, Kenning M, Harzsch S, Sombke A (2013) Architectural principles and evolution of the arthropod central nervous system. In: Minelli A, Boxshall G, Fusco G (Eds.) Arthropod Biology and Evolution: Molecules, Development, Morphology. Springer, Berlin
  • Kapp H, Müller C, Harzsch S (2013). Chaetognatha. In: "Spezielle Zoologie. Teil 1: Einzeller und Wirbellose Tiere". Westheide W, Rieger G (eds.). Springer Spektrum Verlag, pp. 812-817.
2012
Publikationen
  • Krieger J, Grandy R, Drew MM, Erland S, Stensmyr MC, Harzsch S, Hansson BS (2012) Giant robber crabs monitored from space: GPS-based telemetric studies on Christmas Island (Indian Ocean). PLoS ONE 7(11): e49809. Open Access
  • Polanska M, Tuchina O, Agricola H, Hansson BS, Harzsch S (2012) Neuropeptide complexity in the crustacean central olfactory pathway: immunolocalization of A-type allatostatins and RFamide-like peptides in the brain of a terrestrial hermit crab. Molecular Brain. 5:29.
  • Stemme T, Iliffe TM, Bicker G, Harzsch S, Koenemann S (2012) Serotonin immunoreactive interneurons in the brain of the Remipedia: new insights into the phylogenetic affinities of an enigmatic crustacean taxon. BMC Evolutionary Biology. 12:168. doi:10.1186/1471-2148-12-168.
  • Krieger J, Sombke A, Seefluth F, Kenning M, Hansson BS, Harzsch S (2012) Comparative brain architecture of the European shore Crab Carcinus maenas (Brachyura) and the Common hermit Crab Pagurus bernhardus (Anomura). Cell and Tissue Research. 348(1):47-69. Download via www.springerlink.com
  • Wolff G, Harzsch S, Hansson BS, Brown S, Strausfeld NJ (2012) Neuronal organization of the hemiellipsoid body of the land hermit crab Coenobita clypeatus: correspondence with the mushroom body ground pattern. Journal of Comparative Neurology 520: 2824-2846.
  • Wolf H, Harzsch S (2012) Serotonin-immunoreactive neurons in scorpion pectine neuropils: similarities to insect and crustacean primary olfactory centres? Zoology 115: 151-159.
  • Sombke A, Lipke E, Kenning M, Müller CHG, Hansson BS, Harzsch S. (2012) Comparative analysis of deutocerebral neuropils in Chilopoda (Myriapoda): implications for the evolution of the arthropod olfactory system and support for the Mandibulata concept. BMC Neuroscience 13:1.
  • Sintoni S, Benton JL, Beltz BS, Hansson BS, Harzsch S (2012) Neurogenesis in the central olfactory pathway of adult decapod crustaceans: development of the neurogenic niche in the brains of Procambarid Crayfish. Neural Development 7: 1.
Buchbeiträge
  • Sandeman D, Kenning M, Harzsch S. (accepted pending revisions). Adaptive trends in malacostracan brain form and function related to behaviour. In: Derby C and Thiel M (Eds.) Crustacean Nervous System and their Control of Behaviour. The Natural History of the Crustacea. Vol. 3.
  • Harzsch S, Sandeman D, Chaigneau J (2012) Morphology and development of the central nervous system. In: Forest J and von Vaupel Klein JC (Eds.). Treatise on Zoology – Anatomy, Taxonomy, Biology. The Crustacea Vol. 3. Brill, Leiden pp. 9-236.
2011
Publikationen
  • Rieger V, Perez Y, Müller CHG, Lacalli T, Hansson BS, Harzsch, S (2011) Development of the nervous system in hatchlings of Spadella cephaloptera (Chaetognatha), and implications for nervous system evolution in Bilateria. Development, Growth and Differentiation 53:740-759.
  • Missbach C, Harzsch S, Hansson B (2011) New insights into an ancient insect nose: the olfactory pathway of Lepismachilis y-signata (Archaeognatha: Machilidae). Arthropod Structure & Development 40:317-333.
  • Harzsch S, Rieger V, Krieger J, Seefluth F, Strausfeld NJ, Hansson BS (2011) Transition from marine to terrestrial ecologies: Changes in olfactory and tritocerebral neuropils in land-living isopods. Arthropod Strcuture and Development 40: 244-257.
  • Sombke A, Harzsch S, Hansson BS (2011): Organization of deutocerebral neuropils and olfactory behavior in the centipede Scutigera coleoptrata (Linnaeus, 1758) (Myriapoda: Chilopoda). Chemical Senses 36: 43-61.
Buchbeiträge
  • Hansson BS, Harzsch S, Knaden M & Stensmyr M (2011) The neural and behavioral basis of chemical communication in terrestrial crustaceans. In: Chemical communication in Crustaceans., Breithaupt T., Thiel M. (eds.), Springer, 201: 149-174.
2010
Publikationen
  • Stemme T, Bicker G, Harzsch S, Koenemann S (2010) Die rätselhaften Grottenkrebse der Blue Holes. Sind Remipedia primitive Crustaceen oder schwimmende Insekten? Naturhistorica 152: 7-28.
  • Krieger J, Sandeman RE, Sandeman DC, Hansson BS, Harzsch S (2010) Brain architecture of the largest living land arthropod, the Giant Robber Crab Birgus latro (Crustacea, Anomura, Coenobitidae): evidence for a prominent central olfactory pathway? Frontiers in Zoology. 7:25
  • Richter S, Loesel R, Purschke G, Schmidt-Rhaesa A, Scholtz G, Stach T, Vogt L, Wanninger A, Brenneis G, Döring C, Faller S, Fritsch M, Grobe P, Heuer CM, Kaul S, Møller OS, Müller CHG, Rieger V, Rothe BH, Stegner MEJ, Harzsch S (2010). Invertebrate neurophylogeny - suggested terms and definitions for a neuroanatomical glossary. Frontiers in Zoology 7:29.
  • Harzsch S, Kreisl S (2010) Myogenesis in the thoracic limbs of the American lobster. Arthropod Structure & Development 39: 423-435.
  • Drew MM, Harzsch S, Stensmyr M, Erland S, Hansson BS (2010) A review of the biology and ecology of the Robber Crab, Birgus latro (Linnaeus, 1767) (Anomura: Coenobitidae). Zoologischer Anzeiger 249: 45-67.
  • Rieger V, Perez Y, Müller CHG, Lipke E, Sombke A, Hansson BS, Harzsch S (2010) Immunohistochemical analysis and 3D reconstruction of the cephalic nervous system in Chaetognatha: insights into an early bilaterian brain? Invertebrate Biology 129(1): 77-104.
2005 - 2009
Publikationen
  • Sombke A, Harzsch S, Hansson BS (2009): Brain structure of Scutigera coleoptrata: New insights into the evolution of mandibulate olfactory centers. - Soil Organisms 81 (3): 319-325.
  • Harzsch S, Beltz B, Dircksen H (2009) Development of pigment-dispersing hormone-immunoreactive neurons in the American lobster: possible homologies with the insect circadian pacemaker system. Cell & Tissue Research 335: 417-429
  • Harzsch S, Rieger V, Müller CHG, Perez Y, Sintoni S, Sardet C, Hansson B (2009) Fine structure of the ventral nerve centre and interspecific identification of individual neurons in the enigmatic Chaetognatha. Zoomorphology 128: 53-73
  • Vilpoux K, Bisch-Knaden S, Harzsch S (2008) Mapping of Engrailed-expressing cells in the embryonic central nervous system of the marbled crayfish (Marmorkrebs). Invertebrate Neuroscience: DOI 10.1007/s10158-008-0081-7
  • Harzsch S, Hansson B (2008) Brain architecture in the terrestrial hermit crab Coenobita clypeatus (Anomura, Coenobitidae): neuroanatomical evidence for a superb aerial sense of smell. BMC Neuroscience 9: 1-35
  • Kreissl S, Uber A, Harzsch S (2008) Muscle pioneer cells in the developing limbs of two isopods (Crustacea, Peracarida): an immunohistochemical study using a novel monoclonal antibody against myosin heavy chain. Dev. Genes Evol. 218: 253-265
  • Mayer G, Harzsch S (2008) Distribution of 5-HT-like immunoreactivity in the trunk of Metaperipatus blainvillei (Onychophora, Peripatopsidae): implications for nervous system evolution in Arthropoda. J. Comp. Neurol. 507: 1196-1208
  • Rieger V, Harzsch S (2008) Embryonic development of the histaminergic system in the ventral nerve cord of the Marbled Crayfish (Marmorkrebs). Tissue and Cell 39: 113-126
  • Polanska M, Yasuda A, Harzsch S (2007) Immunolocalisation of crustacean-SIFamide in the median brain and eyestalk neuropils of the marbled crayfish. Cell & Tissue Res. 330: 331-344
  • Sintoni S, Fabritius-Vilpoux K, Harzsch S (2007) The Engrailed-expressing secondary head spots in the embryonic crayfish brain: examples for a group of homologous neurons in Crustacea and Hexapoda? Dev Genes Evol 217: 791-799
  • Mayer G, Harzsch S (2007) Immunolocalization of serotonin in Onychophora argues against segmental ganglia being an ancestral feature of arthropods. BMC Evolutionary Biology 7: 118
  • Harzsch S, Müller CHG (2007) A new look at the ventral nerve centre of Sagitta: implications for the phylogenetic position of Chaetognatha (arrow worms) and the evolution of the bilaterian nervous system. Frontiers in Zoology 4: 14
  • Harzsch S, Melzer RR, Müller CHG (2007) Mechanisms of eye development and evolution of the arthropod visual system: the lateral eyes of Myriapoda are not modified insect ommatidia. Org. Divers. Evol. 7: 20-32
  • Harzsch S, Melzer RR, Müller CHG (2006) Eye development in Myriapoda: implications for arthropod phylogeny. Norw. J. Entomol. 53: 187-190
  • Harzsch S, Vilpoux K, Blackburn DC, Platchetzki D, Brown NL, Melzer R, Battelle BA (2006) Development of the eyes and central visual pathway of the horseshoe crab Limulus polyphemus Linnaeus, 1758 (Chelicerata, Xiphosura). Developmental Dynamics 235: 2641-2655
  • Vilpoux K, Sandeman R, Harzsch S (2006) Early embryonic development of the central nervous system in the Australian crayfish and the Marbled crayfish (Marmorkrebs). Dev. Genes Evol. 216: 209-223
  • Fanenbruck M, Harzsch S (2005) A brain atlas of Godzilliognomus frondosus Yager, 1989 (Remipedia, Godzilliidae) and comparison with the brain of Speleonectes tulumensis Yager, 1987 (Remipedia, Speleonectidae): implications for arthropod relationships. Arthropod Struct. Dev.: 343-378
  • Harzsch S, Wildt M, Battelle B, Waloszek D (2005) Immunohistochemical localization of neurotransmitters in the nervous system of larval Limulus polyphemus Linnaeus, 1758 (Chelicerata, Xiphosura): evidence for a conserved architecture of the protocerebrum in Euarthropoda. Arthropod. Struct. Dev.: 327-342
  • Seitz R, Vilpoux K, Hopp U, Harzsch S, Maier G (2005) Ontogeny of the Marmorkrebs (marbled crayfish): a parthenogenetic crayfish with unknown origin and phylogenetic position. J. Exp. Zool. 303A: 393-405
Buchbeiträge
  • Harzsch S, Wanninger A (2009) Evolution of invertebrate nervous systems: the Chaetognatha as a case study. Acta Zoologica 91: 35-41.
  • Harzsch S (2007) Architecture of the nervous system as a character for phylogenetic reconstructions: examples from the Arthropoda. Species, Phylogeny & Evolution 1: 33-57.
  • Stavenga DG, Harzsch S (2007) Origin and evolution of arthropod visual systems: introduction to Part II. Arthropod Struct. Dev.36: 371-372.
  • Harzsch S, Melzer RR (2006) Editorial: origin and evolution of arthropod visual systems. Arthropod Struct. Dev. 35: 209-210.
  • Harzsch S, Hafner G (2006) Evolution of eye development in arthropods: phylogenetic implications. Arthropod Struct. Dev. 35: 319-340.
  • Harzsch S (2006) Neurophylogeny: architecture of the nervous system and a fresh view on arthropod phyologeny. Comp. Integr. Biol. 46: 162-194.
  • Harzsch S (2005) Bookreview of “Evolutionary Developmental Biology of Crustacea”, Crustacean Issue, edited by G. Scholtz. J. Zool. Systemat. Evol. Res. 43: 344-345.
  • Harzsch S, Müller CHG, Wolf H (2005) From variable to constant cell numbers: cellular characteristics of the arthropod nervous system argue against a sister-group relationship of Chelicerata and “Myriapoda” bur favour the Mandibulata concept. Dev. Genes. Evol. 215: 53-68.
2000 - 2004
Publikationen
  • Harzsch S (2004) Phylogenetic comparison of serotonin-immunoreactive neurons in representatives of the Chilopoda, Diplopoda and Chelicerata: implications for arthropod relationships. J. Morphol. 259: 198-213
  • Fanenbruck M, Harzsch S, Wägele W (2004) The brain of the Remipedia (Crustacea) and an alternative hypothesis on their phylogenetic relationships. Proceedings of the National Academy of Sciences USA 101: 3868-3873
  • Harzsch S (2003) Evolution of identified arthropod neurons: the serotonergic system in relation to engrailed-expressing cells in the embryonic ventral nerve cord of the American lobster Homarus americanus Milne Edwards, 1873 (Malacostraca, Pleocyemata, Homarida). Dev. Biol. 258:44-56
  • Harzsch S (2002) Phylogenetic significance of the crustacean optic neuropils and chiasmata: a re-examination. J. Comp. Neurol. 453: 10-21
  • Harzsch S, Glötzner J (2002) An immunohistochemical study on structure and development of the nervous system in the brine shrimp Artemia salina Linnaeus, 1758 (Branchiopoda, Anostraca) with remarks on the evolution of the arthropod brain. Arthropod. Struct. Dev. 30: 251-270.
  • Wildt M, Harzsch S (2002) A new look at an old visual system: structure and development of the compound eyes and optic ganglia of the brine shrimp Artemia salina Linnaeus, 1758 (Branchiopoda, Anostraca). J. Neurobiol. 52: 117-132.
  • Wolf H, Harzsch S (2002) Evolution of the arthropod neuromuscular system: 1. Arrangement of muscles and excitatory innervation in the walking legs of the scorpion Vaejovis spinigerus (Wood, 1863) (Vaejovidae, Scorpiones, Arachnida). Arthropod Struct. Dev. 31: 185-202.
  • Wolf H, Harzsch S (2002) Evolution of the arthropod neuromuscular system. 2. Inhibitory innervation of the walking legs of the scorpion Vaejovis spinigerus (Wood, 1863) (Vaejovidae, Scorpiones, Arachnida). Arthropod Struct. Dev. 31: 203-215
  • Harzsch S (2001) Neurogenesis in the crustacean ventral nerve cord: homology of neuronal stem cells in Malacostraca and Branchiopoda? Evol. Dev. 3: 154-169
  • Harzsch S, Walossek D (2001) Neurogenesis in the developing visual system of the branchiopod crustacean Triops longicaudatus (LeConte, 1846): corresponding patterns of compound-eye formation in Crustacea and Insecta? Dev. Genes Evol. 211: 37-43
  • Harzsch S, Waloszek D (2000) Serotonin-immunoreactive neurons in the ventral nerve cord of Crustacea: a character to study aspects of arthropod phylogeny. Arthropod Struct. Dev. 29: 307-322
  • Harzsch S, Benton J, Beltz B (2000) An unusual case of a mutant lobster embryo with double brain and double ventral nerve cord. Arthropod Struct. Dev. 29: 95-99
Buchbeiträge
  • Harzsch S (2004) The arthropod tritocerebrum: a “non-drosophilocentric” perspective. Evol. Dev. 6: 303-309
  • Harzsch S (2003) Ontogeny of the ventral nerve cord in malacostracan crustaceans: a common plan for neuronal development in Crustacea, Hexapoda and other Arthropoda? Arthropod Struct. Dev. 32: 17-37.
  • Harzsch S (2003) Introduction - Development of the arthropod nervous system: variations on a common theme? Arthropod Struct. Dev. 32: 3-4. 48*
  • Harzsch S (2002) Neurobiologie und Evolutionsforschung: „Neurophylogenie“ und die Stammesgeschichte der Euarthropoda. Neuroforum: 267-273
  • Harzsch S (2002) In the realm of the many limbs. German Research 1/2002: 25-27
  • Harzsch S (2002) From stem cell to structure: neurogenesis in the CNS of decapod crustaceans. In: The Crustacean Nervous System, K. Wiese ed., Springer Verlag: 417-432
  • Harzsch S (2001) Im Reich der vielen Füße. Forschung, Magazin der Deutschen Forschungsgemeinschaft 4/2001: 7-9
  • Harzsch S (2001) Entwicklung des Nervensystems der Crustacea: ein Beitrag zur Phylogenie der Arthropoda. Habilitationsschrift, Universität Bielefeld, Fakulät für Biologie
1993 - 1999
Publikationen
  • Harzsch S, Miller J, Benton J, Beltz B (1999) From embryo to adult: persistent neurogenesis and apoptotic cell death shape the developing crustacean deutocerebrum. J. Neurosci. 19: 3472-3485
  • Harzsch S, Benton J, Dawirs RR, Beltz B (1999) A new look at embryonic development of the visual system in decapod crustaceans: neuropil formation, neurogenesis and apoptotic cell death. J. Neurobiol. 39: 294-306
  • Schmidt M, Harzsch S (1999) Comparative analysis of neurogenesis in the central olfactory pathway of adult decapod crustaceans by in vivo BrdU-labelling. Biol. Bull. 196: 127-136
  • Harzsch S, Miller J, Benton J, Dawirs R, Beltz B (1998) Neurogenesis in the thoracic neuromeres of two crustaceans with different styles of metamorphic development. J. Exp. Biol. 201: 2465-2479
  • Harzsch S, Anger K, Dawirs RR (1997) Immunocytochemical detection of acetylated *-tubulin and Drosophila synapsin in the embryonic crustacean nervous system. Int. J. Dev. Biol. 41: 477–484
  • Harzsch S, Dawirs RR (1996) Neurogenesis in the developing crab brain: postembryonic generation of neurons persists beyond metamorphosis. J. Neurobiol. 29: 384-398
  • Harzsch S, Dawirs RR (1996) Development of neurons exhibiting FMRFamide-related immunoreactivity in the central nervous system of spider crab larvae (Hyas araneus L., Decapoda, Majidae). J. Crust. Biol. 16: 10-19
  • Harzsch S, Dawirs RR (1995/96) Maturation of the compound eyes and eyestalk ganglia during larval development of the brachyuran crustaceans Hyas araneus L. (Decapoda, Majidae) and Carcinus maenas L. (Decapoda, Portunidae). Zoology 99: 189-204
  • Harzsch S, Dawirs RR (1995) A developmental study of serotonin-immunoreactive neurons in the larval central nervous system of the spider crab Hyas araneus (Decapoda, Brachyura). Invertebr. Neurosci. 1: 53-65
  • Harzsch S, Dawirs RR (1994) Neurogenesis in larval stages of the spider crab Hyas araneus (Decapoda, Brachyura): proliferation of neuroblasts in the ventral nerve cord. Roux's Arch. Dev. Biol. 204: 93-100
  • Harzsch S, Dawirs RR (1993) On the morphology of the central nervous system in larval stages of Carcinus maenas L. (Decapoda, Brachyura). Helgoländer Meeresuntersuch. 47: 61-79
Buchbeiträge
  • Harzsch S (1995) Zur Entwicklung des Zentralnervensystems der Krabben Carcinus maenas und Hyas araneus (Decapoda, Brachyura). Dissertation, Universität Bielefeld, Fakultät für Biologie
  • Harzsch S, Dawirs RR (1994) Development of the CNS in spider crab larvae. ZOEA Newsletter 1: 8-10

Structure and Evolution of Invertebrate Nervous Systems

edited by Andreas Schmidt-Rhaesa, Steffen Harzsch and Günter Purschke