Responses and fluctuation of endogenous factors by a neural hormone network in insect feeding behavior

2014 Fiscal Year Final Research Report

• Project/Area Number: 24580157
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Bioproduction chemistry/Bioorganic chemistry
• Research Institution: The University of Tokyo
• Principal Investigator: NAGATA Shinji 東京大学, 新領域創成科学研究科, 准教授 (40345179)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 昆虫生理学 / ペプチド / ホルモン / 摂食行動

Outline of Final Research Achievements

We have identified the factors modulating insect feeding behavior in the silkworm, so far. Becaus of the data which no crucial factor capable of controlling feeding behavior havet been identified, we assumed that a hormone network should modulate the motivation of feeding behavior in insects. To address the hormone network at a molecular level, we have investigated several basic analyses during this project. As results, we have identified receptors for ITP (ion transport peptide: functional unknown peptide), and unknown peptide factors GSRYamides. In addition, brain-gut peptides can modulate feeding behavior like other animal systems via controlling intestinal metabolisms.
Now, we are generating a network graph for hormones modulating feeding behavior. That evaluation method will contribute to further understanding the hormone network-modulating feeding behavior.

Free Research Field

昆虫