Exploration of biological rhythms for temperature compensation

2015 Fiscal Year Final Research Report

• Project/Area Number: 26650121
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Animal physiology/Animal behavior
• Research Institution: Kyushu University
• Principal Investigator: Ito Hiroshi 九州大学, 芸術工学研究科(研究院), 助教 (20512627)
• Co-Investigator(Kenkyū-buntansha): KOUZUMA Takiko 九州大学, 芸術工学研究院, 教務職員 (70274545)
• Project Period (FY): 2014-04-01 – 2016-03-31
• Keywords: 生物リズム / 温度補償性 / イカ / 色素胞

Outline of Final Research Achievements

Biological phenomena with a 24 hours period is called circadian rhythms. Although Biochemical reactions generally depend on temperature, the period of circadian rhythms do not depend on temperature. This property is called "temperature compensation" and it is shared among circadian rhythms of any organisms. In this research, I explored temperature compensation of biological rhythms except circadian rhythms.
I focused contraction rhythms of squid and examined its period under various temperatures. The weaker temperature compensation compared with circadian rhythms was observed through this project.

Free Research Field

時間生物学