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    Lehrstuhl für Neurobiologie und Genetik

    Publikationen Förster

    • Senthilan, P. R., Grebler, R., Reinhard, N., Rieger, D., and Helfrich-Förster, C. (2019) Role of Rhodopsins as Circadian Photoreceptors in the Drosophila melanogaster, Biology8.
       
    • Schlichting, M., Menegazzi, P., Rosbash, M., and Helfrich-Förster, C. (2019) A distinct visual pathway mediates high light intensity adaptation of the circadian clock in Drosophila, Journal of Neuroscience.
       
    • Bertolini, E., Kistenpfennig, C., Menegazzi, P., Keller, A., Koukidou, M., and Helfrich-Förster, C. (2018) The characterization of the circadian clock in the olive fly Bactrocera oleae (Diptera: Tephritidae) reveals a Drosophila-like organization, Sci Reports8, 816.
       
    • Helfrich-Förster, C. (2018) Sleep in Insects, Annual Review of Entomology63.
       
    • Pilorz, V., Helfrich-Förster, C., and Oster, H. (2018) The role of the circadian clock system in physiology, Pflügers Archiv - European Journal of Physiology.
       
    • Beer, K., Kolbe, E., Kahana, N. B., Yayon, N., Weiss, R., Menegazzi, P., Bloch, G., and Helfrich-Förster, C. (2018) Pigment-Dispersing Factor-expressing neurons convey circadian information in the honey bee brain, Open Biology8, 170224.
       
    • Schubert, F. K., Hagedorn, N., Yoshii, T., Helfrich-Förster, C., and Rieger, D. (2018) Neuroanatomical details of the lateral neurons of Drosophila melanogaster support their functional role in the circadian system, J Comp Neurol526, 1209-1231.
       
    • Selkrig, J., Mohammad, F., Ng, S. H., Chua, J. Y., Tumkaya, T., Ho, J., Chiang, Y. N., Rieger, D., Pettersson, S., Helfrich-Foerster, C., and others,. (2018) The Drosophila microbiome has a limited influence on sleep, activity, and courtship behaviors, Scientific reports8, 10646.
       
    • Beck, K., Hovhanyan, A., Menegazzi, P., Helfrich-Förster, C., and Raabe, T. (2018) Drosophila RSK Influences the Pace of the Circadian Clock by Negative Regulation of Protein Kinase Shaggy Activity, Frontiers in Molecular Neuroscience11, 122.
       
    • Kay, J., Menegazzi, P., Mildner, S., Roces, F., and Helfrich-Förster, C. (2018) The Circadian Clock of the Ant Camponotus floridanus Is Localized in Dorsal and Lateral Neurons of the Brain, Journal of biological rhythms33, 255--271.
       
    • Schlichting, M., Rieger, D., Cusumano, P., Grebler, R., Costa, R., Mazzotta, G., and Helfrich-Förster, C. (2018) Cryptochrome interacts with actin and enhances eye-mediated light sensitivity of the circadian clock in Drosophila melanogaster, Frontiers in Molecular Neuroscience11, 238.
       
    • Fujiwara, Y., Hermann-Luibl, C., Katsura, M., Sekiguchi, M., Ida, T., Helfrich-Förster, C., and Yoshii, T. (2018) The CCHamide1 neuropeptide expressed in the anterior dorsal neuron 1 conveys a circadian signal to the ventral lateral neurons in Drosophila melanogaster, Frontiers in physiology9, 1276.
       
    • Helfrich-Förster, C., Bertolini, E., and Menegazzi, P. (2018) Flies as models for circadian clock adaptation to environmental challenges, European Journal of Neuroscience.
       
    • Beauchamp, M., Bertolini, E., Deppisch, P., Steubing, J., Menegazzi, P., and Helfrich-Förster, C. (2018) Closely Related Fruit Fly Species Living at Different Latitudes Diverge in Their Circadian Clock Anatomy and Rhythmic Behavior, Journal of Biological Rhythms33, 602--613.
       
    • Grebler, R., Kistenpfennig, C., Rieger, D., Bentrop, J., Schneuwly, S., Senthilan, P. R., and Helfrich-Förster, C. (2017) Drosophila Rhodopsin 7 can partially replace the structural role of Rhodopsin 1, but not its physiological function, Journal of Comparative Physiology A1--11.
       
    • Benna, C., Helfrich-Förster, C., Rajendran, S., Monticelli, H., Pilati, P., Nitti, D., and Mocellin, S. (2017) Genetic variation of clock genes and cancer risk: a field synopsis and meta-analysis, Oncotarget.
       
    • Menegazzi, P., Benetta, E. D., Beauchamp, M., Schlichting, M., Steffan-Dewenter, I., and Helfrich-Förster, C. (2017) Adaptation of circadian neuronal network to photoperiod in high-latitude European Drosophilids, CURR BIOL27, 833-839.
       
    • Frenkel, L., Muraro, N. I., González, A. N. B., Marcora, M. S., Bernabó, G., Hermann-Luibl, C., Romero, J. I., Helfrich-Förster, C., Castaño, E. M., Marino-Busjle, C., Calvo, D. J., and Ceriani, M. F. (2017) Organization of Circadian Behavior Relies on Glycinergic Transmission, Cell Reports19, 72-85.
       
    • Helfrich-Förster, C. (2017) The Drosophila Clock System. In Biological Timekeeping: Clocks, Rhythms and Behaviour (Kumar, V., Ed.), pp 133-176, Springer India, New Delhi.
       
    • Fuchikawa, T., Beer, K., Linke-Winnebeck, C., Ben-David, R., Kotowoy, A., Tsang, V. W. K., Warman, G. R., Winnebeck, E. C., Helfrich-Förster, C., and Bloch, G. (2017) Neuronal circadian clock protein oscillations are similar in behaviourally rhythmic forager honeybees and in arrhythmic nurses, Open Biology7, 170047.
       
    • Beer, K., Joschinski, J., Arrazola Sastre, A., Krauss, J., and Helfrich-Förster, C. (2017) A damping circadian clock drives weak oscillations in metabolism and locomotor activity of aphids (Acyrthosiphon pisum), Sci Rep7, 14906-14906.
       
    • Kistenpfennig, C., Nakayama, M., Nihara, R., Tomioka, K., Helfrich-Förster, C., and Yoshii, T. (2017) A Tug-of-War between Cryptochrome and the Visual System Allows the Adaptation of Evening Activity to Long Photoperiods in Drosophila melanogaster., Journal of biological rhythms33, 24-34.
       
    • Kistenpfennig, C., Grebler, R., Ogueta, M., Hermann-Luibl, C., Schlichting, M., Stanewsky, R., Senthilan, P. R., and Helfrich-Förster, C. (2017) A new Rhodopsin influences light-dependent daily activity patterns of fruit flies, Journal of biological rhythms32, 406--422.
       
    • Yoshii, T., Hermann-Luibl, C., and Helfrich-Förster, C. (2016) Circadian light-input pathways in Drosophila, Commun Integr Biol9, e1102805.
       
    • Eck, S., Helfrich-Förster, C., and Rieger, D. (2016) The timed depolarization of morning and evening oscillators phase shifts the circadian clock of Drosophila, J Biol Rhythms31, 428-442.
       
    • Chen, J., Reiher, W., Hermann-Luibl, C., Sellami, A., Cognigni, P., Kondo, S., Helfrich-Förster, C., Veenstra, J. A., and Wegener, C. (2016) Allatostatin a signalling in Drosophila regulates feeding and sleep and is modulated by PDF, PLOS Genet12, e1006346.
       
    • Vaze, K. M., and Helfrich-Förster, C. (2016) Drosophila ezoana uses an hour-glass or highly damped circadian clock for measuring night length and inducing diapause, Physiol Entomol41, 378-389.
       
    • Senthilan, P. R., and Helfrich-Förster, C. (2016) Rhodopsin 7--The unusual Rhodopsin in Drosophila, PeerJ4, e2427.
       
    • Schlichting, M., Menegazzi, P., Lelito, K. R., Yao, Z., Buhl, E., Dalla Benetta, E., Bahle, A., Denike, J., Hodge, J. J., Helfrich-Förster, C., and others,. (2016) A neural network underlying circadian entrainment and photoperiodic adjustment of sleep and activity in Drosophila, J Neurosci36, 9084-9096.
       
    • Beer, K., Steffan-Dewenter, I., Härtel, S., and Helfrich-Förster, C. (2016) A new device for monitoring individual activity rhythms of honey bees reveals critical effects of the social environment on behavior, J Comp Physiol A202, 555-565.
       
    • Joschinski, J., Beer, K., Helfrich-Förster, C., and Krauss, J. (2016) Pea aphids (Hemiptera: Aphididae) have diurnal rhythms when raised independently of a host plant, J Insect Sci16, 31.
       
    • Koch, C. E., Bartlang, M. S., Kiehn, J. T., Lucke, L., Naujokat, N., Helfrich-Förster, C., Reber, S. O., and Oster, H. (2016) Time-of-day-dependent adaptation of the HPA axis to predictable social defeat stress, J Endocrinol231, 209-221.
       
    • Fischer, R., Helfrich-Förster, C., and Peschel, N. (2016) GSK-3 Beta does not stabilize cryptochrome in the circadian clock of Drosophila, PLOS ONE11, 1-17.
       
    • Johnsson, A., Helfrich-Förster, C., and Engelmann, W. (2015) How light resets circadian clocks. In Photobiology, pp 243-297, Springer.
       
    • Kmoch, S., Majewski, J., Ramamurthy, V., Cao, S., Fahiminiya, S., Ren, H., MacDonald, I. M., Lopez, I., Sun, V., Keser, V., Khan, A., Stránecký, V., Hartmannová, H., Přistoupilová, A., Hodaňová, K., Piherová, L., Kuchař, L., Baxová, A., Chen, R., Barsottini, O. G., Pyle, A., Griffin, H., Splitt, M., Sallum, J., Tolmie, J. L., Sampson, J. R., Chinnery, P., Canada, C. 4R., Banin, E., Sharon, D., Dutta, S., Grebler, R., Helfrich-Foerster, C., Pedroso, J. L., Kretzschmar, D., Cayouette, M., and Koenekoop, R. K. (2015) Mutations in PNPLA6 are linked to photoreceptor degeneration and various forms of childhood blindness, Nat Commun6, 5614-5614.
       
    • Hermann-Luibl, C., and Helfrich-Förster, C. (2015) Clock network in Drosophila, Curr Opin Insect Sci7, 65-70.
       
    • Schlichting, M., Grebler, R., Menegazzi, P., and Helfrich-Förster, C. (2015) Twilight dominates over moonlight in adjusting Drosophila’s activity pattern, J Biol Rhythms30, 117-128.
       
    • Yoshii, T., Hermann-Luibl, C., Kistenpfennig, C., Schmid, B., Tomioka, K., and Helfrich-Förster, C. (2015) Cryptochrome-Dependent and -Independent Circadian Entrainment Circuits in Drosophila, J Neurosci35, 6131--6141.
       
    • Schlichting, M., Menegazzi, P., and Helfrich-Förster, C. (2015) Normal vision can compensate for the loss of the circadian clock, Proc R Soc Lond B: Biol Sci282, 20151846.
       
    • Chouhan, N.  S., Wolf, R., Helfrich-Förster, C., and Heisenberg, M. (2015) Flies remember the time of day, CURR BIOL25, 1619-1624.
       
    • Schlichting, M., and Helfrich-Förster, C. (2015) Chapter Five - Photic Entrainment in Drosophila Assessed by Locomotor Activity Recordings. In Circadian Rhythms and Biological Clocks, Part B (Sehgal, A., Ed.), pp 105-123.
       
    • Schlichting, M., and Helfrich-Förster, C. (2015) Photic entrainment in Drosophila assessed by locomotor activity recordings. In Methods Enzymol, pp 105-123.
       
    • Bartlang, M. S., Oster, H., and Helfrich-Förster, C. (2015) Repeated Psychosocial Stress at Night Affects the Circadian Activity Rhythm of Male Mice, J Biol Rhythms30, 228-241.
       
    • Dusik, V., Senthilan, P. R., Mentzel, B., Hartlieb, H., Wülbeck, C., Yoshii, T., Raabe, T., and Helfrich-Förster, C. (2014) The MAP kinase p38 is part of Drosophila melanogaster's circadian clock, PLoS genetics10, e1004565.
       
    • Bartlang, M. S., Savelyev, S. A., Johansson, A. -S., Reber, S. O., Helfrich-Förster, C., and Lundkvist, G. B. S. (2014) Repeated psychosocial stress at night, but not day, affects the central molecular clock, Chronobiol Int31, 996-1007.
       
    • Hermann-Luibl, C., Yoshii, T., Senthilan, P. R., Dircksen, H., and Helfrich-Förster, C. (2014) The ion transport peptide is a new functional clock neuropeptide in the fruit fly Drosophila melanogaster, J Neurosci34, 9522-9536.
       
    • Schlichting, M., Grebler, R., Peschel, N., Yoshii, T., and Helfrich-Förster, C. (2014) Moonlight detection by Drosophila's endogenous clock depends on multiple photopigments in the compound eyes, J Biol Rhythms29, 75-86.
       
    • Helfrich-Förster, C. (2014) From neurogenetic studies in the fly brain to a concept in circadian biology, J Neurogenet28, 329-347.
       
    • Gmeiner, F., Kołodziejczyk, A., Yoshii, T., Rieger, D., Nässel, D. R., and Helfrich-Förster, C. (2013) GABA(B) receptors play an essential role in maintaining sleep during the second half of the night in Drosophila melanogaster, J Exp Biol216, 3837-3843.
       
    • Kronfeld-Schor, N., Dominoni, D., de la Iglesia, H., Levy, O., Herzog, E. D., Dayan, T., and Helfrich-Forster, C. (2013) Chronobiology by moonlight, Proc R Soc Lond B: Biol Sci280, 20123088.
       
    • Mazzotta, G., Rossi, A., Leonardi, E., Mason, M., Bertolucci, C., Caccin, L., Spolaore, B., Martin, A. J. M., Schlichting, M., Grebler, R., Helfrich-Förster, C., and others,. (2013) Fly cryptochrome and the visual system, Proc Natl Acad Sci110, 6163-6168.
       
    • Menegazzi, P., Vanin, S., Yoshii, T., Rieger, D., Hermann, C., Dusik, V., Kyriacou, C. P., Helfrich-Förster, C., and Costa, R. (2013) Drosophila clock neurons under natural conditions, J Biol Rhythms28, 3-14.
       
    • Hermann, C., Saccon, R., Senthilan, P. R., Domnik, L., Dircksen, H., Yoshii, T., and Helfrich-Förster, C. (2013) The circadian clock network in the brain of different Drosophila species, J Comp Neurol521, 367-388.
       
    • Redondo, B. B., Bunz, M., Halder, P., Sadanandappa, M. K., Mühlbauer, B., Erwin, F., Hofbauer, A., Rodrigues, V., VijayRaghavan, K., Ramaswami, M., Rieger, D., Wegener, C., Helfrich-Förster, C., and Buchner, E. (2013) Identification and structural characterization of interneurons of the Drosophila brain by monoclonal antibodies of the Würzburg Hybridoma Library, PLOS ONE8, 1-9.
       
    • Ahmed, Z., Helfrich-Förster, C., and Dandekar, T. (2013) Integrating Formal UML Designs and HCI Patterns with Spiral SDLC in DroLIGHT Implementation, Recent Patents on Computer Science6, 85-98.
       
    • Ahmed, Z., and Helfrich-Förster, C. (2013) DroLIGHT: real time embedded system towards endogenous clock synchronization of drosophila. In Front Neuroinform Conference Abstract: Neuroinformatics.
       
    • Ahmed, Z., and Helfrich-Förster, C. (2013) DroLIGHT-2: real time embedded and data management system for synchronizing circadian clock to the light-dark cycles, Recent Patents on Computer Science6, 191-205.
       
    • Hermann, C., Yoshii, T., Dusik, V., and Helfrich-Förster, C. (2012) Neuropeptide F immunoreactive clock neurons modify evening locomotor activity and free-running period in Drosophila melanogaster, J Comp Neurol520, 970-987.
       
    • Rieger, D., Peschel, N., Dusik, V., Glotz, S., and Helfrich-Förster, C. (2012) The ability to entrain to long photoperiods differs between 3 Drosophila melanogaster wild-type strains and is modified by twilight simulation, J Biol Rhythms27, 37-47.
       
    • Menegazzi, P., Yoshii, T., and Helfrich-Förster, C. (2012) Laboratory versus Nature The Two Sides of the Drosophila Circadian Clock, J Biol Rhythms27, 433-442.
       
    • Umezaki, Y., Yoshii, T., Kawaguchi, T., Helfrich-Förster, C., and Tomioka, K. (2012) Pigment-dispersing factor is involved in age-dependent rhythm changes in Drosophila melanogaster, J Biol Rhythms27, 423--432.
       
    • Bartlang, M. S., Neumann, I. D., Slattery, D. A., Uschold-Schmidt, N., Kraus, D., Helfrich-Förster, C., and Reber, S. O. (2012) Time matters: pathological effects of repeated psychosocial stress during the active, but not inactive, phase of male mice, J Endocrinol215, 425-437.
       
    • Kauranen, H., Menegazzi, P., Costa, R., Helfrich-Förster, C., Kankainen, A., and Hoikkala, A. (2012) Flies in the north: Locomotor behavior and clock neuron organization of Drosophila montana, J Biol Rhythms27, 377-387.
       
    • Bywalez, W., Menegazzi, P., Rieger, D., Schmid, B., Helfrich-Förster, C., and Yoshii, T. (2012) The dual-oscillator system of Drosophila melanogaster under natural-like temperature cycles, Chronobiol Int29, 395-407.
       
    • Kistenpfennig, C., Hirsh, J., Yoshii, T., and Helfrich-Förster, C. (2012) Phase-shifting the fruit fly clock without cryptochrome, J Biol Rhythms27, 117-125.
       
    • Vieira, J., Jones, A. R., Danon, A., Sakuma, M., Hoang, N., Robles, D., Tait, S., Heyes, D. J., Picot, M., Yoshii, T., Helfrich-Förster, C., and others,. (2012) Human cryptochrome-1 confers light independent biological activity in transgenic Drosophila correlated with flavin radical stability, PLoS One7, e31867.
       
    • Yoshii, T., Rieger, D., and Helfrich-Förster, C. (2012) Chapter 4 - Two clocks in the brain: An update of the morning and evening oscillator model in Drosophila. In The Neurobiology of Circadian Timing (Andries Kalsbeek, M. M., and Foster, R. G., Eds.), pp 59-82.
       
    • Yoshii, T., Rieger, D., and Helfrich-Förster, C. (2012) Two clocks in the brain. In Progress in Brain Research, pp 59-82, Elsevier BV.
       
    • Schmid, B., Helfrich-Förster, C., and Yoshii, T. (2011) A new ImageJ plug-in “ActogramJ” for chronobiological analyses, J Biol Rhythms26, 464-467.
       
    • Helfrich-Förster, C., Nitabach, M. N., and Holmes, T. C. (2011) Insect circadian clock outputs, Essays Biochem49, 87-101.
       
    • Peschel, N., and Helfrich-Förster, C. (2011) Setting the clock--by nature: circadian rhythm in the fruitfly Drosophila melanogaster, FEBS letters585, 1435-1442.
       
    • Yoshii, T., Hermann, C., and Helfrich-Förster, C. (2010) Cryptochrome-positive and-negative clock neurons in Drosophila entrain differentially to light and temperature, J Biol Rhythms25, 387-398.
       
    • Benna, C., Bonaccorsi, S., Wülbeck, C., Helfrich-Förster, C., Gatti, M., Kyriacou, C. P., Costa, R., and Sandrelli, F. (2010) Drosophila timeless2 is required for chromosome stability and circadian photoreception, CURR BIOL20, 346-352.
       
    • Helfrich-Förster, C. (2010) Das neuronale Netzwerk der Inneren Uhr, Neuroforum16, 151.
       
    • Ritz, T., Yoshii, T., Helfrich-Förster, C., and Ahmad, M. (2010) Cryptochrome: A photoreceptor with the properties of a magnetoreceptor?, Commun Integr Biol3, 24-27.
       
    • Wülbeck, C., Grieshaber, E., and Helfrich-Förster, C. (2009) Blocking endocytosis in Drosophila's circadian pacemaker neurons interferes with the endogenous clock in a PDF-dependent way, Chronobiol Int26, 1307-1322.
       
    • Helfrich-Förster, C., Yoshii, T., Vanin, S., and Costa, R. (2009) The role of PDF in the circadian clock, Sleep Biol Rhythms7, 130-143.
       
    • Helfrich-Förster, C. (2009) Macht die innere Uhr “mondsüchtig”?, BIOspektrum5, 491-492.
       
    • Johard, H. A. D., Yoishii, T., Dircksen, H., Cusumano, P., Rouyer, F., Helfrich-Förster, C., and Nässel, D. R. (2009) Peptidergic clock neurons in Drosophila: ion transport peptide and short neuropeptide F in subsets of dorsal and ventral lateral neurons, J Comp Neurol516, 59-73.
       
    • Helfrich-Förster, C. (2009) Neuropeptide PDF plays multiple roles in the circadian clock of Drosophila melanogaster, Sleep Biol Rhythms7, 130-143.
       
    • Yoshii, T., Vanin, S., Costa, R., and Helfrich-Förster, C. (2009) Synergic entrainment of Drosophila’s circadian clock by light and temperature, J Biol Rhythms24, 452-464.
       
    • Helfrich-Förster, C. (2009) Does the morning and evening oscillator model fit better for flies or mice?, J Biol Rhythms24, 259-270.
       
    • Rieger, D., Wülbeck, C., Rouyer, F., and Helfrich-Förster, C. (2009) Period gene expression in four neurons is sufficient for rhythmic activity of Drosophila melanogaster under dim light conditions, J Biol Rhythms24, 271-282.
       
    • Yoshii, T., Ahmad, M., and Helfrich-Förster, C. (2009) Cryptochrome mediates light-dependent magnetosensitivity of Drosophila's circadian clock, PLoS Biol7, e1000086.
       
    • Yoshii, T., Wülbeck, C., Sehadova, H., Veleri, S., Bichler, D., Stanewsky, R., and Helfrich-Förster, C. (2009) The neuropeptide pigment-dispersing factor adjusts period and phase of Drosophila's clock, J Neurosci29, 2597-2610.
       
    • Kempinger, L., Dittmann, R., Rieger, D., and Helfrich-Förster, C. (2009) The nocturnal activity of fruit flies exposed to artificial moonlight is partly caused by direct light effects on the activity level that bypass the endogenous clock, Chronobiol Int26, 151-166.
       
    • Wülbeck, C., Grieshaber, E., and Helfrich-Förster, C. (2008) Pigment-dispersing factor (PDF) has different effects on Drosophila's circadian clocks in the accessory medulla and in the dorsal brain, J Biol Rhythms23, 409-424.
       
    • Yoshii, T., Todo, T., Wülbeck, C., Stanewsky, R., and Helfrich-Förster, C. (2008) Cryptochrome is present in the compound eyes and a subset of Drosophila's clock neurons, J Comp Neurol508, 952-966.
       
    • Bachleitner, W., Kempinger, L., Wülbeck, C., Rieger, D., and Helfrich-Förster, C. (2007) Moonlight shifts the endogenous clock of Drosophila melanogaster, Proc Natl Acad Sci104, 3538-3543.
       
    • Wülbeck, C., and Helfrich-Förster, C. (2007) RNA in situ hybridizations on Drosophila whole mounts, Circadian Rhythms: Methods and Protocols, Springer495-511.
       
    • Veleri, S., Rieger, D., Helfrich-Förster, C., and Stanewsky, R. (2007) Hofbauer-Buchner Eyelet Affects Circadian Photosensitivity and Coordinates TIM and PER Expression in Drosophila Clock Neurons, J Biol Rhythms22, 29-42.
       
    • Rieger, D., Fraunholz, C., Popp, J., Bichler, D., Dittmann, R., and Helfrich-Förster, C. (2007) The fruit fly Drosophila melanogaster favors dim light and times its activity peaks to early dawn and late dusk, J Biol Rhythms22, 387-399.
       
    • Hamasaka, Y., Rieger, D., Parmentier, M. -L., Grau, Y., Helfrich-Förster, C., and Nässel, D. R. (2007) Glutamate and its metabotropic receptor inDrosophilaclock neuron circuits, J Comp Neurol505, 32-45.
       
    • Helfrich-Förster, C. (2007) Immunohistochemistry in Drosophila. In Methods in Molecular Biology, pp 533-547, Springer Nature.
       
    • Helfrich-Förster, C., Yoshii, T., Wülbeck, C., Grieshaber, E., Rieger, D., Bachleitner, W., Cusumano, P., and Rouyer, F. (2007) The Lateral and Dorsal Neurons ofDrosophila melanogaster:New Insights about Their Morphology and Function, Cold Spring Harbor Symposia on Quantitative Biology, Cold Spring Harbor Laboratory Press72, 517-525.
       
    • Rieger, D., Shafer, O. T., Tomioka, K., and Helfrich-Förster, C. (2006) Functional analysis of circadian pacemaker neurons in Drosophila melanogaster, J Neurosci26, 2531-2543.
       
    • Shafer, O. T., Helfrich-Förster, C., Renn, S. C. P., and Taghert, P. H. (2006) Reevaluation of Drosophila melanogaster's neuronal circadian pacemakers reveals new neuronal classes, J Comp Neurol498, 180-193.
       
    • Helfrich-Förster, C., Shafer, O. T., Wülbeck, C., Grieshaber, E., Rieger, D., and Taghert, P. (2006) Development and morphology of the clock-gene-expressing lateral neurons of Drosophila melanogaster, J Comp Neurol500, 47-70.
       
    • Helfrich-Förster, C. (2006) The neural basis of Drosophila’s circadian clock, Sleep Biol Rhythms4, 224-234.
       
    • Wülbeck, C., Szabo, G., Shafer, O. T., Helfrich-Förster, C., and Stanewsky, R. (2005) The Novel Drosophila timblind Mutation Affects Behavioral Rhythms but Not Periodic Eclosion, Genetics169, 751-766.
       
    • Helfrich-Förster, C. (2005) Techniques that revealed the network of the circadian clock of Drosophila, Methods in enzymology, Elsevier393, 439-451.
       
    • Helfrich-Förster, C. (2005) PDF has found its receptor, Neuron48, 161-163.
       
    • Helfrich-Förster, C. (2005) Neurobiology of the fruit fly's circadian clock, Genes Brain Behav4, 65--76.
       
    • Helfrich-Förster, C. (2005) Organization of endogenous clocks in insects, Portland Press Limited.
       
    • Helfrich-Förster, C. (2004) The circadian clock in the brain: a structural and functional comparison between mammals and insects, J Comp Physiol A190.
       
    • Helfrich-Förster, C. (2003) The neuroarchitecture of the circadian clock in the brain of Drosophila melanogaster, Microsc Res Tech62, 94-102.
       
    • Park, J. H., Schroeder, A. J., Helfrich-Förster, C., Jackson, F. R., and Ewer, J. (2003) Targeted ablation of CCAP neuropeptide-containing neurons of Drosophila causes specific defects in execution and circadian timing of ecdysis behavior, Development130, 2645-2656.
       
    • Rieger, D., Stanewsky, R., and Helfrich-Förster, C. (2003) Cryptochrome, compound eyes, Hofbauer-Buchner eyelets, and ocelli play different roles in the entrainment and masking pathway of the locomotor activity rhythm in the fruit fly Drosophila melanogaster, J Biol Rhythms18, 377-391.
       
    • Veleri, S., Brandes, C., Helfrich-Förster, C., Hall, J. C., and Stanewsky, R. (2003) A self-sustaining, light-entrainable circadian oscillator in the Drosophila brain, Curr Biol13, 1758-1767.
       
    • Helfrich-Förster, C., Edwards, T., Yasuyama, K., Wisotzki, B., Schneuwly, S., Stanewsky, R., Meinertzhagen, I. A., and Hofbauer, A. (2002) The extraretinal eyelet of Drosophila: development, ultrastructure, and putative circadian function, J Neurosci22, 9255-9266.
       
    • Helfrich-Förster, C. (2002) The circadian system of Drosophila melanogaster and its light input pathways1, Zoology105, 297-312.
       
    • Helfrich-Förster, C., Wulf, J., and De Belle, J. S. (2002) Mushroom body influence on locomotor activity and circadian rhythms in Drosophila melanogaster, J Neurogenet16, 73-109.
       
    • Helfrich-Förster, C., and Engelmann, W. (2002) Photoreceptors for the circadian clock of the fruitfly. In Biological rhythms, pp 94-106, Springer.
       
    • Helfrich-Förster, C., Winter, C., Hofbauer, A., Hall, J. C., and Stanewsky, R. (2001) The circadian clock of fruit flies is blind after elimination of all known photoreceptors, Neuron30, 249-261.
       
    • Foster, R. G., and Helfrich-Förster, C. (2001) The regulation of circadian clocks by light in fruitflies and mice, Philos Trans R Soc Lond B Biol Sci356, 1779-1789.
       
    • Helfrich-Förster, C. (2001) The locomotor activity rhythm of Drosophila melanogaster is controlled by a dual oscillator system, J Insect Physiol47, 877-887.
       
    • Emery, P., Stanewsky, R., Helfrich-Förster, C., Emery-Le, M., Hall, J. C., and Rosbash, M. (2000) Drosophila CRY is a deep brain circadian photoreceptor, Neuron26, 493-504.
       
    • Helfrich-Förster, C., Täuber, M., Park, J. H., Mühlig-Versen, M., Schneuwly, S., and Hofbauer, A. (2000) Ectopic expression of the neuropeptide pigment-dispersing factor alters behavioral rhythms in Drosophila melanogaster, J Neurosci20, 3339-3353.
       
    • Park, J. H., Helfrich-Forster, C., Lee, G., Liu, L., Rosbash, M., and Hall, J. C. (2000) Differential regulation of circadian pacemaker output by separate clock genes in Drosophila, Proc Natl Acad Sci97, 3608-3613.
       
    • Helfrich-Förster, C. (2000) Differential control of morning and evening components in the activity rhythm of Drosophila melanogaster-sex-specific differences suggest a different quality of activity, J Biol Rhythms15, 135-154.
       
    • Hao, H., Glossop, N. R. J., Lyons, L., Qiu, J., Morrish, B., Cheng, Y., Helfrich-Förster, C., and Hardin, P. (1999) The 69 bp Circadian Regulatory Sequence (CRS) Mediatesper-Like Developmental, Spatial, and Circadian Expression and Behavioral Rescue in Drosophila, J Neurosci19, 987-994.
       
    • Helfrich-Förster, C. (1998) Robust circadian rhythmicity of Drosophila melanogaster requires the presence of lateral neurons: a brain-behavioral study of disconnected mutants, J. Comp. Physiol. A182, 435-453.
       
    • Antkowiak, B., and Helfrich-Förster, C. (1998) Effects of small concentrations of volatile anesthetics on action potential firing of neocortical neurons In vitro, Anesthesiology88, 1592-1605.
       
    • Helfrich-Förster, C., Stengl, M., and Homberg, U. (1998) Organization of the Circadian System in Insects, Chronobiol Int15, 567-594.
       
    • Helfrich-Förster, C. (1997) Development of pigment-dispersing hormone-immunoreactive neurons in the nervous system of drosophila melanogaster, J Comp Neurol380, 335-354.
       
    • Kaneko, M., Helfrich-Förster, C., and Hall, J. C. (1997) Spatial and temporal expression of the period andtimeless genes in the developing nervous system of Drosophila: newly identified pacemaker candidates and novel features of clock gene product cycling, J Neurosci17, 6745-6760.
       
    • Helfrich-Förster, C. (1996) Drosophila rhythms: from brain to behavior, Semin Cell Dev Biol7, 791-802.
       
    • Helfrich-Förster, C. (1995) The period clock gene is expressed in central nervous system neurons which also produce a neuropeptide that reveals the projections of circadian pacemaker cells within the brain of Drosophila melanogaster., Proc Natl Acad Sci92, 612-616.
       
    • Helfrich-Förster, C., and Homberg, U. (1993) Pigment-dispersing hormone-immunoreactive neurons in the nervous system of wild-type Drosophila melanogaster and of several mutants with altered circadian rhythmicity, Journal of Comparative Neurology, Wiley-Blackwell337, 177-190.
       
    • Helfrich-Förster, C. (1987) Use of Drosophila melanogaster brain mutants for the localization of the pacemaker of circadian locomotor activity rhythm, J Neurogenet4, 137-140.
       
    • Helfrich, C., and Engelmann, W. (1987) Evidences for circadian rhythmicity in the per0 mutant of Drosophila melanogaster, J Biosci42, 1335-1338.
       
    • Helfrich, C. (1986) Role of the Optic Lobes in the Regulation of the Locomotor Activity Rhythm of Drosophila melanogaster: Behavioral Analysis of Neural Mutants, J Neurogenet3, 321-343.
       
    • Helfrich, C., Cymborowski, B., and Engelmann, W. (1985) Circadian activity rhythm of the house fly continues after optic tract severance and lobectomy, Chronobiol Int2, 19-32.
       
    • Helfrich-Förster, C., and Engelmann, W. (1983) Circadian rhythm of the locomotor activity in Drosophila melanogaster and its mutants ‘sine oculis’ and ‘small optic lobes’, Physiol Entomol8, 257-272.
       

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