| Systematic isolation of peptide signal molecules regulating development in hydra: LWamide and PW families T Takahashi, Y Muneoka, J Lohmann, MSL De Haro, G Solleder, ... Proceedings of the National Academy of Sciences 94 (4), 1241-1246, 1997 | 183 | 1997 |
| A novel neuropeptide, Hym-355, positively regulates neuron differentiation in Hydra T Takahashi, O Koizumi, Y Ariura, A Romanovitch, TCG Bosch, ... Development 127 (5), 997-1005, 2000 | 109 | 2000 |
| Nerve ring of the hypostome in hydra. I. Its structure, development, and maintenance O Koizumi, M Itazawa, H Mizumoto, S Minobe, LC Javois, ... Journal of Comparative Neurology 326 (1), 7-21, 1992 | 83 | 1992 |
| Plasticity in the nervous system of adult hydra: I. The position-dependent expression of FMRFamide-like immunoreactivity O Koizumi, HR Bode Developmental biology 116 (2), 407-421, 1986 | 83 | 1986 |
| Development of the two-part pattern during regeneration of the head in hydra PM Bode, TA Awad, O Koizumi, Y Nakashima, CJP Grimmelikhuijzen, ... Development 102 (1), 223-235, 1988 | 80 | 1988 |
| Plasticity in the nervous system of adult hydra: II. Conversion of ganglion cells of the body column into epidermal sensory cells of the hypostome O Koizumi, S Heimfeld, HR Bode Developmental biology 129 (2), 358-371, 1988 | 78 | 1988 |
| Ultrastructural localization of RFamide‐like peptides in neuronal dense‐cored vesicles in the peduncle of Hydra O Koizumi, JD Wilson, CJP Grimmelikhuijzen, JA Westfall Journal of Experimental Zoology 249 (1), 17-22, 1989 | 76 | 1989 |
| A novel neuropeptide, Hym-176, induces contraction of the ectodermal muscle in Hydra S Yum, T Takahashi, O Koizumi, Y Ariura, Y Kobayakawa, S Mohri, ... Biochemical and biophysical research communications 248 (3), 584-590, 1998 | 74 | 1998 |
| Transdifferentiation occurs continuously in adult hydra H Bode, J Dunne, S Heimfeld, L Huang, L Javois, O Koizumi, ... Current topics in developmental biology 20, 257-280, 1986 | 74 | 1986 |
| Localization of the neuropeptide NGIWYamide in the holothurian nervous system and its effects on muscular contraction M Inoue, RÏ Birenheide, O Koizumi, Y Kobayakawa, Y Muneoka, ... Proceedings of the Royal Society of London. Series B: Biological Sciences …, 1999 | 71 | 1999 |
| Nerve ring of the hypostome in hydra: is it an origin of the central nervous system of bilaterian animals? O Koizumi Brain Behavior and Evolution 69 (2), 151-159, 2007 | 68 | 2007 |
| Plasticity in the nervous system of adult hydra. III. Conversion of neurons to expression of a vasopressin-like immunoreactivity depends on axial location O Koizumi, HR Bode Journal of Neuroscience 11 (7), 2011-2020, 1991 | 61 | 1991 |
| Developmental neurobiology of hydra, a model animal of cnidarians O Koizumi Canadian Journal of Zoology 80 (10), 1678-1689, 2002 | 55 | 2002 |
| Identification of jellyfish neuropeptides that act directly as oocyte maturation-inducing hormones N Takeda, Y Kon, G Quiroga Artigas, P Lapébie, C Barreau, O Koizumi, ... Development 145 (2), dev156786, 2018 | 54 | 2018 |
| Chemical anatomy of hydra nervous system using antibodies against hydra neuropeptides: a review O Koizumi, N Sato, C Goto Hydrobiologia 530, 41-47, 2004 | 53 | 2004 |
| Identification of a new member of the GLWamide peptide family: physiological activity and cellular localization in cnidarian polyps T Takahashi, Y Kobayakawa, Y Muneoka, Y Fujisawa, S Mohri, M Hatta, ... Comparative Biochemistry and Physiology Part B: Biochemistry and Molecular …, 2003 | 50 | 2003 |
| Maintenance and regeneration of the nerve net in hydra HR Bode, S Heimfeld, O Koizumi, CL Littlefield, MS Yaross American zoologist, 1053-1063, 1988 | 46 | 1988 |
| Highly differentiated population structure of a Mangrove species, Bruguiera gymnorhiza (Rhizophoraceae) revealed by one nuclear GapCp and one chloroplast intergenic … S Minobe, S Fukui, R Saiki, T Kajita, S Changtragoon, NA Ab Shukor, ... Conservation Genetics 11, 301-310, 2010 | 44 | 2010 |
| Inferences of evolutionary history of a widely distributed mangrove species, Bruguiera gymnorrhiza, in the Indo‐West Pacific region C Urashi, KM Teshima, S Minobe, O Koizumi, N Inomata Ecology and Evolution 3 (7), 2251-2261, 2013 | 43 | 2013 |
| The nerve ring in cnidarians: its presence and structure in hydrozoan medusae O Koizumi, S Hamada, S Minobe, K Hamaguchi-Hamada, ... Zoology 118 (2), 79-88, 2015 | 40 | 2015 |
