Abstract
Glutamate is an excitatory neurotransmitter in the central and peripheral nervous systems of the vertebrate. The previous studies show the presence of mRNAs of AMPA-type glutamate receptors, GluR1 and GluR2, in the optic tectum of the pigeon, suggesting glutamatergic input from the retina. The present study examined localization of vesicular glutamate transporter 2 (VGLUT2) and GluR1 and GluR2 to confirm source of glutamatergic neurons in the pigeon retina by in situ hybridization histochemistry. VGLUT2 mRNA expressed in the inner nuclear layer and ganglion cells, while GluR1 and GluR2 mRNAs were observed in the inner nuclear layer, ganglion cells, and superficial layers of the optic tectum. The results suggest that photoreceptor cells, bipolar cells and ganglion cells are glutamatergic in the avian retina as in mammals.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
