| Project/Area Number |
09660059
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
蚕糸・昆虫利用学
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| Research Institution | Tamagawa University |
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Principal Investigator |
SASAKI Mamami Professor Tamagawa University, Faculty of Agriculture, 農学部, 教授 (40096061)
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| Co-Investigator(Kenkyū-buntansha) |
ONO Masato Associate Professor Tamagawa University, Faculty of Agriculture, 農学部, 助教授 (70204253)
NAKAMURA Jun Assoc. Professor Tamagawa University, Research Institute, 写術研究所, 助教授 (30256002)
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| Project Period (FY) |
1997 – 1998
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| Project Status |
Completed (Fiscal Year 1998)
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| Budget Amount *help |
¥2,600,000 (Direct Cost: ¥2,600,000)
Fiscal Year 1998: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1997: ¥1,800,000 (Direct Cost: ¥1,800,000)
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| Keywords | honeybee / Apis mellifera / memory / learning / nest mate / discrimination |
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| Research Abstract |
Memory/learning are extensively involved in honeybee social life. Proboscis extension reflex (PER) was adopted to analyze 'nest mate discrimination' as an important function of the colony system. 1.5 M sucrose solution was used as reward (positive unconditioned stimulus : US+) and 2 M NaCl solution as punishment (US-) to let the bees discriminate odor or non-volatile surface wax (conditioned stimulus). As conditioned stimuli, substances washed out from workers of Apis mellifera (CS+) and A. cerana japonica (CS-) were used. Workers of A. mellifera could read, memories, and discriminate odors of self-synthesised and environmental origin, both of which are absorbed temporarily on to body surface and dispersed spontaneously. Bees could also discriminate non-volatile (treated under vacuo) crude wax compounds of A. mellifera and A. cerana japonica. In these wax components, acidic fraction containing free fatty acids was more readily memorized than hydrocarbon and neutral-alkaline fraction.
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