PMID: 12769998May 29, 2003Paper

Pigment-dispersing factor sets the night state of the medulla bilateral neurons in the optic lobe of the cricket, Gryllus bimaculatus

Journal of Insect Physiology
A S M Saifullah, Kenji Tomioka

Abstract

Pigment-dispersing factor (PDF) is an octadeca-neuropeptide widely distributed in the insect brain and suggested to be involved in the insect circadian systems. We have examined its effects on the neuronal activity of the brain efferents in the optic stalk including medulla bilateral neurons (MBNs) in the cricket, Gryllus bimaculatus. The MBNs are visually responding interneurons connecting the bilateral medulla, which show a clear day/night change in their light responsiveness that is greater during the night. Microinjection of PDF into the optic lobe induced a significant increase in the spontaneous activity of the brain efferents and the photo-responsiveness of the MBNs during the day, while little change was induced during the night. The enhancing effects began to occur about 20 min after the injection and another 10 min was necessary to reach the maximal level. The effects of PDF were dose-dependent. When 22 nl of anti-Gryllus-PDF (1:200) IgG was injected into the medulla, the photo-responsiveness of the MBNs was suppressed in both the day and the night with greater magnitude during the night. No significant suppression was induced by injection of the same amount of IgG from normal rabbit serum. These results suggest that ...Continue Reading

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Citations

Mar 10, 2010·Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology·Katharina FassoldMatthias W Lorenz
Feb 14, 2012·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Kenji TomiokaTaishi Yoshii
Jun 9, 2006·Cell and Tissue Research·Dick R Nässel, Uwe Homberg
Jan 14, 2011·Cell and Tissue Research·Sandra SoehlerThomas Reischig
Jul 5, 2005·Journal of Insect Physiology·Mika KogaKenji Tomioka
Oct 7, 2014·Zoological Science·Kenji Tomioka
Dec 26, 2009·Cellular and Molecular Life Sciences : CMLS·Kenji Tomioka, Akira Matsumoto
Nov 3, 2010·Progress in Neurobiology·E MeelkopT Janssen
Apr 16, 2010·The Journal of Comparative Neurology·Seol Hee Im, Paul H Taghert
Nov 27, 2009·The Journal of Comparative Neurology·Kouji Yasuyama, Ian A Meinertzhagen
May 17, 2006·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Colin G H Steel, Xanthe Vafopoulou
Dec 2, 2005·The Journal of Comparative Neurology·Yasutaka Hamasaka, Dick R Nässel
Mar 17, 2011·Journal of Economic Entomology·Lilia I De GuzmanRichard T Arbogast
Nov 22, 2005·Comparative Biochemistry and Physiology. Toxicology & Pharmacology : CBP·Leonardo Rodríguez-SosaVíctor Anaya González
Jan 20, 2009·Journal of Biological Rhythms·Chi-Mei LeeHow-Jing Lee
Dec 7, 2007·Brain Research Reviews·Mariska J VansteenselJohanna H Meijer
Mar 29, 2018·Journal of Biological Rhythms·Janina KayCharlotte Helfrich-Förster
Jun 4, 2008·The Journal of Comparative Neurology·Katarzyna MiśkiewiczElzbieta Pyza
Sep 5, 2009·Chronobiology International·Jeremy M SullivanDavid C Sandeman
Jan 13, 2018·Open Biology·Katharina BeerCharlotte Helfrich-Förster
Nov 7, 2019·Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology·Charlotte Helfrich-Förster
Dec 23, 2004·Zoological Science·Kenji Tomioka, Salaheldin Abdelsalam

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