Publikationen

2021

1.
Bertolini, E., and Helfrich-Förster, C. (2021) -Sleep and the Circadian Clock in Insects☆. In Reference Module in Neuroscience and Biobehavioral Psychology, Elsevier.
[ URL ]
 
2.
Vaze, K. M., and Helfrich-Förster, C. (2021) The Neuropeptide PDF Is Crucial for Delaying the Phase of Drosophila’s Evening Neurons Under Long Zeitgeber Periods, Journal of Biological Rhythms.
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3.
Pütz, S. M., Kram, J., Rauh, E., Kaiser, S., Toews, R., Lueningschroer-Wang, Y., Rieger, D., and Raabe, T. (2021) Loss of p21-activated kinase Mbt/PAK4 causes Parkinson-like phenotypes in Drosophila, Disease Models & Mechanisms 14.
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4.
Pauls, D., Selcho, M., Räderscheidt, J., Amatobi, K. M., Fekete, A., Krischke, M., Hermann-Luibl, C., Ozbek-Unal, A. G., Ehmann, N., Itskov, P. M., Kittel, R. J., Helfrich-Förster, C., Kühnlein, R. P., Mueller, M. J., and Wegener, C. (2021) Endocrine signals fine-tune daily activity patterns in Drosophila, Current Biology.
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5.
Colizzi, F. S., Beer, K., Cuti, P., Deppisch, P., Martínez Torres, D., Yoshii, T., and Helfrich-Förster, C. (2021) Antibodies Against the Clock Proteins Period and Cryptochrome Reveal the Neuronal Organization of the Circadian Clock in the Pea Aphid, Frontiers in Physiology 12, 988.
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6.
Wehr, T. A., and Helfrich-Förster, C. (2021) Longitudinal observations call into question the scientific consensus that humans are unaffected by lunar cycles, BioEssays n/a, 2100054.
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7.
Ruf, F., Mitesser, O., Mungwa, S. T., Horn, M., Rieger, D., Hovestadt, T., and Wegener, C. (2021) Natural Zeitgebers Under Temperate Conditions Cannot Compensate for the Loss of a Functional Circadian Clock in Timing of a Vital Behavior in Drosophila, Journal of Biological Rhythms.
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8.
Zandawala, M., Nguyen, T., Balanyà Segura, M., Johard, H. A. D., Amcoff, M., Wegener, C., Paluzzi, J.-P., and Nässel, D. R. (2021) A neuroendocrine pathway modulating osmotic stress in Drosophila, PLOS Genetics 17, 1–31.
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9.
Habenstein, J., Schmitt, F., Liessem, S., Ly, A., Trede, D., Wegener, C., Predel, R., Rössler, W., and Neupert, S. (2021) Transcriptomic, peptidomic and mass spectrometry imaging analysis of the brain in the ant Cataglyphis nodus, Journal of Neurochemistry.
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10.
Helfrich-Förster, C., Monecke, S., Spiousas, I., Hovestadt, T., Mitesser, O., and Wehr, T. A. (2021) Women temporarily synchronize their menstrual cycles with the luminance and gravimetric cycles of the Moon, Science Advances 7.
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11.
Breitenbach, T., Helfrich-Förster, C., and Dandekar, T. (2021) An effective model of endogenous clocks and external stimuli determining circadian rhythms, Scientific Reports 11, 16165.
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2020

1.
Menegazzi, P., Beer, K., Grebler, V., Schlichting, M., Schubert, F. K., and Helfrich-Förster, C. (2020) A Functional Clock Within the Main Morning and Evening Neurons of D. melanogaster Is Not Sufficient for Wild-Type Locomotor Activity Under Changing Day Length, Frontiers in Physiology 11, 229.
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2.
Schabler, S., Amatobi, K. M., Horn, M., Rieger, D., Helfrich-Förster, C., Mueller, M. J., Wegener, C., and Fekete, A. (2020) Loss of function in the Drosophila clock gene period results in altered intermediary lipid metabolism and increased susceptibility to starvation, Cellular and Molecular Life Sciences.
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3.
Schubert, F. K., Helfrich-Förster, C., and Rieger, D. (2020) Single-cell resolution long-term luciferase imaging in cultivated <i>Drosophila</i> brains, microPublication Biology.
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4.
Beer, K., and Helfrich-Förster, C. (2020) Post-embryonic Development of the Circadian Clock Seems to Correlate With Social Life Style in Bees, Frontiers in Cell and Developmental Biology 8, 1325.
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5.
Scheiner, R., Frantzmann, F., Jäger, M., Mitesser, O., Helfrich-Förster, C., and Pauls, D. (2020) A Novel Thermal-Visual Place Learning Paradigm for Honeybees (Apis mellifera), Frontiers in Behavioral Neuroscience 14, 56.
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6.
Pegoraro, M., Flavell, L. M. M., Menegazzi, P., Colombi, P., Dao, P., Helfrich-Förster, C., and Tauber, E. (2020) The genetic basis of diurnal preference in Drosophila melanogaster, BMC Genomics 21, 596.
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7.
Fernandez-Chiappe, F., Hermann-Luibl, C., Peteranderl, A., Reinhard, N., Senthilan, P. R., Hieke, M., Selcho, M., Yoshii, T., Shafer, O. T., Muraro, N. I., and Helfrich-Förster, C. (2020) Dopamine signaling in wake promoting clock neurons is not required for the normal regulation of sleep in Drosophila, Journal of Neuroscience, Society for Neuroscience.
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8.
Beer, K., and Helfrich-Förster, C. (2020) Model and Non-model Insects in Chronobiology, Frontiers in Behavioral Neuroscience 14, 221.
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2019

1.
Schlichting, M., Weidner, P., Diaz, M., Menegazzi, P., Dalla-Benetta, E., Helfrich-Foerster, C., and Rosbash, M. (2019) Light-mediated circuit switching in the Drosophila neuronal clock network, bioRxiv 515478.
[ URL ]
 
2.
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.
[ URL ]
 
3.
Senthilan, P. R., Grebler, R., Reinhard, N., Rieger, D., and Helfrich-Förster, C. (2019) Role of Rhodopsins as Circadian Photoreceptors in the Drosophila melanogaster, Biology 8, 6.
[ URL ]
 
4.
Pauls, D., Hamarat, Y., Trufasu, L., Schendzielorz, T. M., Gramlich, G., Kahnt, J., Vanselow, J. T., Schlosser, A., and Wegener, C. (2019) Drosophila carboxypeptidase D (SILVER) is a key enzyme in neuropeptide processing required to maintain locomotor activity levels and survival rate, European Journal of Neuroscience.
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5.
Lyutova, R., Selcho, M., Pfeuffer, M., Segebarth, D., Habenstein, J., Rohwedder, A., Frantzmann, F., Wegener, C., Thum, A. S., and Pauls, D. (2019) Reward signaling in a recurrent circuit of dopaminergic neurons and peptidergic Kenyon cells, Nature Communications 10, 3097-.
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6.
Cederroth, C. R., Albrecht, U., Bass, J., Brown, S. A., Dyhrfjeld-Johnsen, J., Gachon, F., Green, C. B., Hastings, M. H., Helfrich-Förster, C., Hogenesch, J. B., Lévi, F., Loudon, A., Lundkvist, G. B., Meijer, J. H., Rosbash, M., Takahashi, J. S., Young, M., and Canlon, B. (2019) Medicine in the Fourth Dimension, Cell Metabolism 30, 238–250.
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7.
Helfrich-Förster, C. (2019) Polarization Vision: Targets of Polarization-Sensitive Photoreceptors in the Drosophila Visual System, Current Biology 29, R839 - R842.
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8.
Helfrich-Förster, C. (2019) Light input pathways to the circadian clock of insects with an emphasis on the fruit fly Drosophila melanogaster, Journal of Comparative Physiology A 1–14.
[ URL ]
 
9.
Helfrich-Förster, C. (2019) Flies’ colour preferences depend on the time of day, Nature 574, 43–44.
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10.
Megha, Wegener, C., and Hasan, G. (2019) ER-Ca2+ sensor STIM regulates neuropeptides required for development under nutrient restriction in Drosophila, PLOS ONE 14, 1–22.
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11.
Nässel, D. R., Pauls, D., and Huetteroth, W. (2019) Neuropeptides in modulation of Drosophila behavior: how to get a grip on their pleiotropic actions, Current Opinion in Insect Science 36, 1–8.
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12.
Horn, M., Mitesser, O., Hovestadt, T., Yoshii, T., Rieger, D., and Helfrich-Förster, C. (2019) The Circadian Clock Improves Fitness in the Fruit Fly, Drosophila melanogaster, Frontiers in Physiology 10, 1374.
[ URL ]
 
13.
Bertolini, E., Schubert, F. K., Zanini, D., Sehadová, H., Helfrich-Förster, C., and Menegazzi, P. (2019) Life at High Latitudes Does Not Require Circadian Behavioral Rhythmicity under Constant Darkness, Current Biology.
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14.
Nagy, D., Cusumano, P., Andreatta, G., Anduaga, A. M., Hermann-Luibl, C., Reinhard, N., Gesto, J., Wegener, C., Mazzotta, G., Rosato, E., Kyriacou, C. P., Helfrich-Förster, C., and Costa, R. (2019) Peptidergic signaling from clock neurons regulates reproductive dormancy in Drosophila melanogaster, PLOS Genetics 15, 1–25.
[ URL ]
 

2018

1.
Helfrich-Förster, C. (2018) Sleep in Insects, Annual Review of Entomology 63.
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2.
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 Neuroscience 11, 238.
[ URL ]
 
3.
Beck, S., Yu-Strzelczyk, J., Pauls, D., Constantin, O. M., Gee, C. E., Ehmann, N., Kittel, R. J., Nagel, G., and Gao, S. (2018) Synthetic Light-Activated Ion Channels for Optogenetic Activation and Inhibition, Frontiers in Neuroscience 12, 643.
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4.
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 physiology 9, 1276.
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5.
Pauls, D., Blechschmidt, C., Frantzmann, F., el Jundi, B., and Selcho, M. (2018) A comprehensive anatomical map of the peripheral octopaminergic/tyraminergic system of Drosophila melanogaster, Scientific Reports 8, 15314.
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6.
Helfrich-Förster, C., Bertolini, E., and Menegazzi, P. (2018) Flies as models for circadian clock adaptation to environmental challenges, European Journal of Neuroscience.
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7.
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 Rhythms 33, 602–613.
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8.
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 reports 8, 10646.
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9.
Kunz, T. O., Chen, J., Megha, and Wegener, C. (2018) Metabolic Labeling to Quantify Drosophila Neuropeptides and Peptide Hormones. In Peptidomics: Methods and Strategies (Schrader, M., and Fricker, L., Eds.), pp. 175–185.
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10.
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 Neuroscience 11, 122.
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11.
Predel, R., Neupert, S., Derst, C., Reinhardt, K., and Wegener, C. (2018) Neuropeptidomics of the Bed Bug Cimex lectularius, Journal of Proteome Research 17, 440–454.
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12.
Selcho, M., Mühlbauer, B., Hensgen, R., Shiga, S., Wegener, C., and Yasuyama, K. (2018) Anatomical characterization of PDF-Tri neurons and peptidergic neurons associated with eclosion behavior in Drosophila, Journal of Comparative Neurology 526, 1307–1328.
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13.
Beer, K. (2018) A comparison of the circadian clock of highly social bees (Apis mellifera) and solitary bees (Osmia spec.): Circadian clock development, behavioral rhythms and neuroanatomical characterization of two central clock components (PER and PDF), PhD Thesis, University of Wuerzburg.
 
14.
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 Reports 8, 816.
[ URL ]
 
15.
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 Neurol 526, 1209–1231.
[ URL ]
 
16.
Kay, J. (2018) The circadian clock of the carpenter ant Camponotus floridanus, PhD Thesis, University of Wuerzburg.
 
17.
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 Biology 8, 170224.
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18.
Pilorz, V., Helfrich-Förster, C., and Oster, H. (2018) The role of the circadian clock system in physiology, Pflügers Archiv - European Journal of Physiology.
[ URL ]
 
19.
Schubert, F. (2018) The circadian clock network of Drosophila melanogaster, PhD Thesis, University of Wuerzburg.
 
20.
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 rhythms 33, 255–271.
[ URL ]
 

2017

1.
Berlandi, J., Lin, F.-J., Ambrée, O., Rieger, D., Paulus, W., and Jeibmann, A. (2017) Swing Boat: Inducing and Recording Locomotor Activity in a Drosophila melanogaster Model of Alzheimer’s Disease, Frontiers in Behavioral Neuroscience 11, 159.
[ URL ]
 
2.
Widmann, A., Eichler, K., Selcho, M., Thum, A. S., and Pauls, D. (2017) Odor-taste Learning in Drosophila Larvae, Journal of Insect Physiology.
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3.
Ruf, F., Fraunholz, M., Öchsner, K., Kaderschabek, J., and Wegener, C. (2017) WEclMon--A simple and robust camera-based system to monitor Drosophila eclosion under optogenetic manipulation and natural conditions, PloS one 12, e0180238.
[ URL ]
 
4.
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 rhythms 32, 406–422.
[ URL ]
 
5.
Zotzmann, S., Steinbrink, A., Schleich, K., Frantzmann, F., Xoumpholphakdy, C., Spaeth, M., Moro, C. V., Mavingui, P., and Klimpel, S. (2017) Bacterial diversity of cosmopolitan Culex pipiens and invasive Aedes japonicus from Germany, Parasitology Research 116, 1899–1906.
[ URL ]
 
6.
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 rhythms 33, 24–34.
[ URL ]
 
7.
Ruf, F. (2017) The circadian regulation of eclosion in Drosophila melanogaster, PhD Thesis, University of Wuerzburg.
 
8.
Martelli, C., Pech, U., Kobbenbring, S., Pauls, D., Bahl, B., Sommer, M. V., Pooryasin, A., Barth, J., Arias, C. W. P., Vassiliou, C., Luna, A. J. F., Poppinga, H., Richter, F. G., Wegener, C., Fiala, A., and Riemensperger, T. (2017) SIFamide Translates Hunger Signals into Appetitive and Feeding Behavior in Drosophila, Cell Reports 20, 464–478.
[ URL ]
 
9.
Volberg, G., Chockley, A., and Greenlee, M. (2017) Do graphemes attract spatial attention in grapheme-color synesthesia?, Neuropsychologia 99, 101–111.
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10.
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 Reports 19, 72–85.
[ URL ]
 
11.
Schmitt, F., Vanselow, J. T., Schlosser, A., Wegener, C., and Rössler, W. (2017) Neuropeptides in the desert ant Cataglyphis fortis: Mass spectrometric analysis, localization, and age-related changes, J Comp Neurol 525, 901–918.
[ URL ]
 
12.
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.
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13.
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 BIOL 27, 833–839.
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14.
Selcho, M., Millán, C., Palacios-Muñoz, A., Ruf, F., Ubillo, L., Chen, J., Bergmann, G., Ito, C., Silva, V., Wegener, C., and others. (2017) Central and peripheral clocks are coupled by a neuropeptide pathway in Drosophila, Nature Communications 8, 8:15563.
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15.
Fuchikawa, T., Beer, K., Linke-Winnebeck, C., Ben-David, R., Kotowoy, A., Tsang, V., Warman, G., Winnebeck, E., Helfrich-Förster, C., and Bloch, G. (2017) Neuronal circadian clock protein oscillations are similar in behaviourally rhythmic forager honeybees and in arrhythmic nurses, Open Biology 7, 170047.
[ URL ]
 
16.
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 A 1–11.
[ URL ]
 
17.
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.
[ URL ]
 
18.
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 Rep 7, 14906–14906.
[ URL ]
 

2016

1.
Widmann, A., Artinger, M., Biesinger, L., Boepple, K., Peters, C., Schlechter, J., Selcho, M., and Thum, A. S. (2016) Genetic Dissection of Aversive Associative Olfactory Learning and Memory in Drosophila Larvae, PLOS Genetics 12, 1–32.
[ URL ]
 
2.
Benoit, J. B., Adelman, Z. N., Reinhardt, K., Dolan, A., Poelchau, M., Jennings, E. C., Szuter, E. M., Hagan, R. W., Gujar, H., Shukla, J. N., Menegazzi, P., Wegener, C., and Peschel, N. et al. (2016) Unique features of a global human ectoparasite identified through sequencing of the bed bug genome, Nat Commun 7:10165.
[ URL ]
 
3.
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 Genet 12, e1006346.
[ URL ]
 
4.
Mena, W., Diegelmann, S., Wegener, C., and Ewer, J. (2016) Stereotyped responses of Drosophila peptidergic neuronal ensemble depend on downstream neuromodulators, eLife 5, e19686.
[ URL ]
 
5.
Fischer, R., Helfrich-Förster, C., and Peschel, N. (2016) GSK-3 Beta does not stabilize cryptochrome in the circadian clock of Drosophila, PLOS ONE 11, 1–17.
[ URL ]
 
6.
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 Endocrinol 231, 209–221.
[ URL ]
 
7.
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 Sci 16, 31.
[ URL ]
 
8.
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 A 202, 555–565.
[ URL ]
 
9.
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 Neurosci 36, 9084–9096.
[ URL ]
 
10.
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 Rhythms 31, 428–442.
[ URL ]
 
11.
Senthilan, P. R., and Helfrich-Förster, C. (2016) Rhodopsin 7--The unusual Rhodopsin in Drosophila, PeerJ 4, e2427.
[ URL ]
 
12.
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 Entomol 41, 378–389.
[ URL ]
 
13.
Eck, S. (2016) The impact of thermogenetic depolarizations of specific clock neurons on Drosophila melanogaster’s ciecadian clock., PhD Thesis, University of Wuerzburg.
 
14.
Yoshii, T., Hermann-Luibl, C., and Helfrich-Förster, C. (2016) Circadian light-input pathways in Drosophila, Commun Integr Biol 9, e1102805.
[ URL ]
 

2015

1.
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 Sci 282, 20151846.
[ URL ]
 
2.
Grebler, R. (2015) Investigation of Rhodopsin 7 and Cryptochrome in Drosophila melanogaster vision, PhD Thesis, University of Wuerzburg.
 
3.
Schmitt, F., Vanselow, J. T., Schlosser, A., Kahnt, J., Rössler W., and Wegener, C. (2015) Neuropeptidomics of the carpenter ant Camponotus floridanus, J Proteome Res 14, 1504–1514.
[ URL ]
 
4.
Wegener, C., and Veenstra, J. A. (2015) Chemical identity, function and regulation of enteroendocrine peptides in insects, Curr Opin Insect Sci 11, 8–13.
[ URL ]
 
5.
Rohwedder, A., Selcho, M., Chassot, B., and Thum, A. S. (2015) Neuropeptide F neurons modulate sugar reward during associative olfactory learning of Drosophila larvae, J Comp Neurol 523, 2637–2664.
[ URL ]
 
6.
Selcho, M., and Wegener, C. (2015) Immunofluorescence and Genetic Fluorescent Labeling Techniques in the Drosophila Nervous System, Immunocytochemistry and Related Techniques 39–62.
 
7.
Ahmed, Z., Mayr, M., Zeeshan, S., Dandekar, T., Mueller, M. J., and Fekete, A. (2015) Lipid-Pro: a computational lipid identification solution for untargeted lipidomics on data-independent acquisition tandem mass spectrometry platforms, Bioinformatics 31, 1150–1153.
[ URL ]
 
8.
Johnsson, A., Helfrich-Förster, C., and Engelmann, W. (2015) How light resets circadian clocks. In Photobiology, pp. 243–297.
[ URL ]
 
9.
Schlichting, M. (2015) Light entrainment of the circadian clock: the importance of the visual system for adjusting Drosophila melanogaster’s activity pattern, PhD Thesis, University of Wuerzburg.
 
10.
Pauls, D., von Essen, A., Lyutova, R., van Giesen, L., Rosner, R., Wegener, C., and Sprecher, S. G. (2015) Potency of transgenic effectors for neurogenetic manipulation in Drosophila larvae, Genetics 199, 25–37.
[ URL ]
 
11.
Chouhan, N., Wolf, R., Helfrich-Förster, C., and Heisenberg, M. (2015) Flies remember the time of day, CURR BIOL 25, 1619–1624.
[ URL ]
 
12.
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 Rhythms 30, 228–241.
[ URL ]
 
13.
Gellerer, A., Franke, A., Neupert, S., Predel, R., Zhou, X., Liu, S., Reiher, W., Wegener, C., and Homberg, U. (2015) Identification and distribution of SIFamide in the nervous system of the desert locust Schistocerca gregaria, J Comp Neurol 523, 108–125.
[ URL ]
 
14.
Schlichting, M., and Helfrich-Förster, C. (2015) Photic entrainment in Drosophila assessed by locomotor activity recordings. In Methods Enzymol, pp. 105–123.
[ URL ]
 
15.
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., 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 Commun 6, 5614–5614.
[ URL ]
 
16.
Hermann-Luibl, C., and Helfrich-Förster, C. (2015) Clock network in Drosophila, Curr Opin Insect Sci 7, 65–70.
[ URL ]
 
17.
Schlichting, M., Grebler, R., Menegazzi, P., and Helfrich-Förster, C. (2015) Twilight dominates over moonlight in adjusting Drosophila’s activity pattern, J Biol Rhythms 30, 117–128.
[ URL ]
 
18.
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 Neurosci 35, 6131–6141.
[ URL ]
 
19.
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.
[ URL ]
 

2014

1.
Ahmed, Z., Zeeshan, S., Huber, C., Hensel, M., Schomburg, D., Münch, R., Eylert, E., Eisenreich, W., and Dandekar, T. (2014) ‘Isotopo’a database application for facile analysis and management of mass isotopomer data, Database, Oxford University Press 2014, bau077.
[ URL ]
 
2.
Ahmed, Z., Zeeshan, S., Fleischmann, P., Rössler, W., and Dandekar, T. (2014) Ant-App-DB: a smart solution for monitoring arthropods activities, experimental data management and solar calculations without GPS in behavioral field studies, F1000Research, Faculty of 1000 Ltd 3.
[ URL ]
 
3.
Wegener, C. (2014) Peptide profiling of the retrocerebral complex and identification of an adipokinetic hormone and short neuropeptide F peptides in diapausing and non-diapausing cherry fruit flies Rhagoletis cerasi (Diptera: Tephritidae), Mitt Dtsch Ges Allg Angew Entomol 19, 265–268.
 
4.
Ahmed, Z. (2014) Ant-App-Database towards neural, behavioral research on deserts ants and approximate solar estimations, Neuroinformatics 93.
[ URL ]
 
5.
Helfrich-Förster, C. (2014) From neurogenetic studies in the fly brain to a concept in circadian biology, J Neurogenet 28, 329–347.
[ URL ]
 
6.
Bartlang, M. S., Savelyev, S. A., Johansson, A.-S., Reber, S. O., Helfrich-Förster, C., and Lundkvist, G. B. (2014) Repeated psychosocial stress at night, but not day, affects the central molecular clock, Chronobiol Int 31, 996–1007.
[ URL ]
 
7.
Dandekar, T., Fieselmann, A., Majeed, S., and Ahmed, Z. (2014) Software applications toward quantitative metabolic flux analysis and modeling, Briefings in bioinformatics, Oxford Univ Press 15, 91–107.
[ URL ]
 
8.
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 Neurosci 34, 9522–9536.
[ URL ]
 
9.
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 Rhythms 29, 75–86.
[ URL ]
 
10.
Ahmed, Z., Zeeshan, S., and Dandekar, T. (2014) Developing sustainable software solutions for bioinformatics by the “Butterfly” paradigm, F1000Research, Faculty of 1000 Ltd 3.
[ URL ]
 
11.
Selcho, M., Pauls, D., Huser, A., Stocker, R. F., and Thum, A. S. (2014) Characterization of the octopaminergic and tyraminergic neurons in the central brain of Drosophila larvae, J Comp Neurol 522, 3485–3500.
[ URL ]
 
12.
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 genetics 10, e1004565.
[ URL ]
 
13.
Pauls, D., Chen, J., Reiher, W., Vanselow, J. T., Schlosser, A., Kahnt, J., and Wegener, C. (2014) Peptidomics and processing of regulatory peptides in the fruit fly Drosophila, EuPA Open Proteomics 3, 114–127.
[ URL ]
 

2013

1.
Vaze, K. M., and Sharma, V. K. (2013) On the adaptive significance of circadian clocks for their owners, Chronobiol Int 30, 413–433.
[ URL ]
 
2.
Vaze, K. M., Nikhil, K., and Sharma, V. K. (2013) Genetic architecture underlying morning and evening circadian phenotypes in fruit flies Drosophila melanogaster, Heredity 111, 265–274.
[ URL ]
 
3.
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 Biol 216, 3837–3843.
[ URL ]
 
4.
Ahmed, Z., and Helfrich-Förster, C. (2013) DroLIGHT: real time embedded system towards endogenous clock synchronization of drosophila. In Front Neuroinform Conference Abstract: Neuroinformatics.
[ URL ]
 
5.
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 Science 6, 85–98.
[ URL ]
 
6.
Karsai, G., Pollák, E., Wacker, M., Vömel, M., Selcho, M., Berta, G., Nachman, R. J., Isaac, R. E., Molnár, L., and Wegener, C. (2013) Diverse in-and output polarities and high complexity of local synaptic and non-synaptic signaling within a chemically defined class of peptidergic Drosophila neurons, Front Neural Circuits 7, 127.
[ URL ]
 
7.
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 Science 6, 191–205.
[ URL ]
 
8.
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 Sci 280, 20123088.
[ URL ]
 
9.
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 ONE 8, 1–9.
[ URL ]
 
10.
Mazzotta, G., Rossi, A., Leonardi, E., Mason, M., Bertolucci, C., Caccin, L., Spolaore, B., Martin, A. J., Schlichting, M., Grebler, R., Helfrich-Förster, C., and others. (2013) Fly cryptochrome and the visual system, Proc Natl Acad Sci 110, 6163–6168.
[ URL ]
 
11.
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 Rhythms 28, 3–14.
[ URL ]
 
12.
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 Neurol 521, 367–388.
[ URL ]
 

2012

1.
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 Neurol 520, 970–987.
 
2.
Sellami, A., Wegener, C., and Veenstra, J. A. (2012) Functional significance of the copper transporter ATP7 in peptidergic neurons and endocrine cells in Drosophila melanogaster, Letters 586, 3633–3638.
[ URL ]
 
3.
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 One 7, e31867.
 
4.
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 Rhythms 27, 37–47.
 
5.
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 Endocrinol 215, 425–437.
 
6.
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 Int 29, 395–407.
 
7.
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 Rhythms 27, 423–432.
 
8.
Yoshii, T., Rieger, D., and Helfrich-Förster, C. (2012) Two clocks in the brain. In Progress in Brain Research, pp. 59–82, Elsevier BV.
[ URL ]
 
9.
Menegazzi, P., Yoshii, T., and Helfrich-Förster, C. (2012) Laboratory versus Nature The Two Sides of the Drosophila Circadian Clock, J Biol Rhythms 27, 433–442.
 
10.
Zoephel, J., Reiher, W., Rexer, K.-H., Kahnt, J., and Wegener, C. (2012) Peptidomics of the agriculturally damaging larval stage of the cabbage root fly Delia radicum (Diptera: Anthomyiidae), PloS one 7, e41543.
[ URL ]
 
11.
Vaze, K. M., and Sharma, V. K. (2012) Early-and late-emerging Drosophila melanogaster fruit flies differ in their sensitivity to light during morning and evening, Chronobiol Int 29, 674–682.
[ URL ]
 
12.
Kistenpfennig, C., Hirsh, J., Yoshii, T., and Helfrich-Förster, C. (2012) Phase-shifting the fruit fly clock without cryptochrome, J Biol Rhythms 27, 117–125.
 
13.
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.
[ URL ]
 
14.
Vanin, S., Bhutani, S., Montelli, S., Menegazzi, P., Green, E. W., Pegoraro, M., Sandrelli, F., Costa, R., and Kyriacou, C. P. (2012) Unexpected features of Drosophila circadian behavioural rhythms under natural conditions, Nature 484, 371–375.
[ URL ]
 
15.
Selcho, M., Pauls, D., el Jundi, B., Stocker, R. F., and Thum, A. S. (2012) The Role of octopamine and tyramine in Drosophila larval locomotion, J Comp Neurol 520, 3764–3785.
[ URL ]
 
16.
Senthilan, P., Piepenbrock, D., Ovezmyradov, G., Nadrowski, B., Bechstedt, S., Pauls, S., Winkler, M., Möbius, W., Howard, J., and Göpfert, M. (2012) Drosophila auditory organ genes and genetic hearing defects, Cell 150, 1042–1054.
[ URL ]
 
17.
Huser, A., Rohwedder, A., Apostolopoulou, A. A., Widmann, A., Pfitzenmaier, J. E., Maiolo, E. M., Selcho, M., Pauls, D., von Essen, A., Gupta, T., and others. (2012) The serotonergic central nervous system of the Drosophila larva: anatomy and behavioral function, PLoS One 7, e47518.
[ URL ]
 
18.
Vaze, K. M., Kannan, N. N., Abhilash, L., and Sharma, V. K. (2012) Chronotype differences in Drosophila are enhanced by semi-natural conditions, Naturwissenschaften 99, 967–971.
[ URL ]
 
19.
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 Rhythms 27, 377–387.
 

2011

1.
Nässel, D. R., and Wegener, C. (2011) A comparative review of short and long neuropeptide F signaling in invertebrates: Any similarities to vertebrate neuropeptide Y signaling?, Peptides 32, 1335–1355.
[ URL ]
 
2.
Wegener, C., Herbert, H., Kahnt, J., Bender, M., and Rhea, J. M. (2011) Deficiency of prohormone convertase dPC2 (AMONTILLADO) results in impaired production of bioactive neuropeptide hormones in Drosophila, J Neurochem 118, 581–595.
[ URL ]
 
3.
Schmid, B., Helfrich-Förster, C., and Yoshii, T. (2011) A new ImageJ plug-in “ActogramJ” for chronobiological analyses, J Biol Rhythms 26, 464–467.
 
4.
Thum, A., Leisibach, B., Gendre, N., Selcho, M., and Stocker, R. (2011) Diversity, variability, and suboesophageal connectivity of antennal lobe neurons in D. melanogaster larvae, The Journal of Comparative Neurology, Wiley Subscription Services, Inc., A Wiley Company 519, 3415–3432.
[ URL ]
 
5.
Helfrich-Förster, C., Nitabach, M. N., and Holmes, T. C. (2011) Insect circadian clock outputs, Essays Biochem 49, 87–101.
 
6.
Peschel, N., and Helfrich-Förster, C. (2011) Setting the clock--by nature: circadian rhythm in the fruitfly Drosophila melanogaster, FEBS letters 585, 1435–1442.
 
7.
von Essen, A. M., Pauls, D., Thum, A. S., and Sprecher, S. G. (2011) Capacity of visual classical conditioning in Drosophila larvae., Behav Neurosci 125, 921.
[ URL ]
 
8.
Schleyer, M., Saumweber, T., Nahrendorf, W., Fischer, B., von Alpen, D., Pauls, D., Thum, A., and Gerber, B. (2011) A behavior-based circuit model of how outcome expectations organize learned behavior in larval Drosophila, Learn Mem 18, 639–653.
[ URL ]
 
9.
Reiher, W., Shirras, C., Kahnt, J., Baumeister, S., Isaac, R. E., and Wegener, C. (2011) Peptidomics and Peptide Hormone Processing in the Drosophila Midgut, J Proteome Res 10, 1881–1892.
[ URL ]
 

2010

1.
Rhea, J. M., Wegener, C., and Bender, M. (2010) The proprotein convertase encoded by amontillado (amon) is required in Drosophila corpora cardiaca endocrine cells producing the glucose regulatory hormone AKH, PLoS Genet 6, e1000967.
[ URL ]
 
2.
Helfrich-Förster, C. (2010) Das neuronale Netzwerk der Inneren Uhr, Neuroforum 16, 151.
[ URL ]
 
3.
Pauls, D., Pfitzenmaier, J. E., Krebs-Wheaton, R., Selcho, M., Stocker, R. F., and Thum, A. S. (2010) Electric shock-induced associative olfactory learning in Drosophila larvae, Chem Senses 35, 335–346.
[ URL ]
 
4.
Sidyelyeva, G., Wegener, C., Schoenfeld, B., Bell, A., Baker, N., McBride, S., and Fricker, L. (2010) Individual carboxypeptidase D domains have both redundant and unique functions in Drosophila development and behavior, Cell Mol Life Sci 67, 2991–3004.
[ URL ]
 
5.
Wegener, C., Neupert, S., and Predel, R. (2010) Direct MALDI-TOF Mass Spectrometric Peptide Profiling of Neuroendocrine Tissue of Drosophila. In Peptidomics: Methods and Protocols (Soloviev, M., Ed.), pp. 117–127.
[ URL ]
 
6.
Schachtner, J., Wegener, C., Neupert, S., and Predel, R. (2010) Direct peptide profiling of brain tissue by MALDI-TOF mass spectrometry., Methods Mol Biol 615, 129–135.
 
7.
Pauls, D., Selcho, M., Gendre, N., Stocker, R. F., and Thum, A. S. (2010) Drosophila larvae establish appetitive olfactory memories via mushroom body neurons of embryonic origin, J Neurosci 30, 10655–10666.
[ URL ]
 
8.
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 Rhythms 25, 387–398.
 
9.
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 BIOL 20, 346–352.
 
10.
Ritz, T., Yoshii, T., Helfrich-Förster, C., and Ahmad, M. (2010) Cryptochrome: A photoreceptor with the properties of a magnetoreceptor?, Commun Integr Biol 3, 24–27.
 

2009

1.
Lu, Q., Senthilan, P. R., Effertz, T., Nadrowski, B., and Göpfert, M. C. (2009) Using Drosophila for studying fundamental processes in hearing, Integr Comp Biol 49, 674–680.
[ URL ]
 
2.
Helfrich-Förster, C. (2009) Neuropeptide PDF plays multiple roles in the circadian clock of Drosophila melanogaster, Sleep Biol Rhythms 7, 130–143.
 
3.
Yoshii, T., Vanin, S., Costa, R., and Helfrich-Förster, C. (2009) Synergic entrainment of Drosophila’s circadian clock by light and temperature, J Biol Rhythms 24, 452–464.
 
4.
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 Int 26, 1307–1322.
 
5.
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 Neurosci 29, 2597–2610.
 
6.
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 Int 26, 151–166.
 
7.
Helfrich-Förster, C., Yoshii, T., Vanin, S., and Costa, R. (2009) The role of PDF in the circadian clock, Sleep Biol Rhythms 7, 130–143.
 
8.
Yoshii, T., Ahmad, M., and Helfrich-Förster, C. (2009) Cryptochrome mediates light-dependent magnetosensitivity of Drosophila’s circadian clock, PLoS Biol 7, e1000086.
 
9.
Busch, S., Selcho, M., Ito, K., and Tanimoto, H. (2009) A map of octopaminergic neurons in the Drosophila brain, J Comp Neurol 513, 643–667.
[ URL ]
 
10.
Johard, H. A., 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 Neurol 516, 59–73.
 
11.
Helfrich-Förster, C. (2009) Does the morning and evening oscillator model fit better for flies or mice?, J Biol Rhythms 24, 259–270.
 
12.
Selcho, M., Pauls, D., Han, K.-A., Stocker, R. F., and Thum, A. S. (2009) The role of dopamine in Drosophila larval classical olfactory conditioning, PLoS ONE 4, e5897.
[ URL ]
 
13.
Helfrich-Förster, C. (2009) Macht die innere Uhr “mondsüchtig”?, BIOspektrum 5, 491–492.
[ URL ]
 
14.
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 Rhythms 24, 271–282.