TY  - GEN
A1  - Otto, Nils
A1  - Marelja, Zvonimir
A1  - Schoofs, Andreas
A1  - Kranenburg, Holger
A1  - Bittern, Jonas
A1  - Yildirim, Kerem
A1  - Berh, Dimitri
A1  - Bethke, Maria
A1  - Thomas, Silke
A1  - Rode, Sandra
A1  - Risse, Benjamin
A1  - Jiang, Xiaoyi
A1  - Pankratz, Michael
A1  - Leimkühler, Silke
A1  - Klämbt, Christian
T1  - The sulfite oxidase Shopper controls neuronal activity by regulating glutamate homeostasis in Drosophila ensheathing glia
T2  - Postprints der Universität Potsdam : Mathematisch Naturwissenschaftliche Reihe
N2  - Specialized glial subtypes provide support to developing and functioning neural networks. Astrocytes modulate information processing by neurotransmitter recycling and release of neuromodulatory substances, whereas ensheathing glial cells have not been associated with neuromodulatory functions yet. To decipher a possible role of ensheathing glia in neuronal information processing, we screened for glial genes required in the Drosophila central nervous system for normal locomotor behavior. Shopper encodes a mitochondrial sulfite oxidase that is specifically required in ensheathing glia to regulate head bending and peristalsis. shopper mutants show elevated sulfite levels affecting the glutamate homeostasis which then act on neuronal network function. Interestingly, human patients lacking the Shopper homolog SUOX develop neurological symptoms, including seizures. Given an enhanced expression of SUOX by oligodendrocytes, our findings might indicate that in both invertebrates and vertebrates more than one glial cell type may be involved in modulating neuronal activity.
T3  - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe - 975 
KW  - molybdenum cofactor deficiency
KW  - blood-brain-barrier
KW  - larval locomotion
KW  - energy-metabolism
KW  - cerebral-cortex
KW  - astrocytes
KW  - behavior
KW  - cells
KW  - transmission
KW  - disease
KW  - Diseases of the nervous system
KW  - Glial biology
KW  - Glial development
KW  - Neurotransmitters
Y1  - 2020
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-426205
SN  - 1866-8372
IS  - 975
ER  - 
TY  - JOUR
A1  - Scheiner, Ricarda
A1  - Toteva, Anna
A1  - Reim, Tina
A1  - Sovik, Eirik
A1  - Barron, Andrew B.
T1  - Differences in the phototaxis of pollen and nectar foraging honey bees are related to their octopamine brain titers
JF  - Frontiers in physiology
N2  - The biogenic amine octopamine is an important neuromodulator, neurohormone and neurotransmitter in insects. We here investigate the role of octopamine signaling in honey bee phototaxis. Our results show that groups of bees differ naturally in their phototaxis. Pollen forgers display a lower light responsiveness than nectar foragers. The lower phototaxis of pollen foragers coincides with higher octopamine titers in the optic lobes but is independent of octopamine receptor gene expression. Increasing octopamine brain titers reduces responsiveness to light, while tyramine application enhances phototaxis. These findings suggest an involvement of octopamine signaling in honey bee phototaxis and possibly division of labor, which is hypothesized to be based on individual differences in sensory responsiveness.
KW  - biogenic amines
KW  - tyramine
KW  - division of labor
KW  - honey bee
KW  - light responsiveness
KW  - insect
KW  - behavior
Y1  - 2014
U6  - https://doi.org/10.3389/fphys.2014.00116
SN  - 1664-042X
VL  - 5
PB  - Frontiers Research Foundation
CY  - Lausanne
ER  -