通过Drosophila的味觉系统检测碳化
Walter Fischler1, Priscilla Kong, Sunanda Marella
1Department of Molecular and Cell Biology, [291 Life Sciences Addition, University of California-Berkeley, Berkeley, California 94720, USA.
Nature
|August 31, 2007
概括
果,Drosophila melanogaster,拥有一种新的味道模式:碳化. 这一发现揭示了昆虫的一种新的感官感知,可能会影响营养的检测和行为,并表明碳化味道可能存在于其他物种中.
科学领域:
- * 感官生物学和神经伦理学
- * 无脊椎动物的味觉感知
背景情况:
- *人类的味觉感知包括甜味,苦味,酸味,味和乌玛米.
- * Drosophila melanogaster 除了糖和苦味化合物之外的味道模式尚不清楚.
- *以前的研究发现了糖 (Gr5a) 和苦 (Gr66a) 味觉受体基因.
研究的目的:
- * 为了识别Drosophila melanogaster.中的新味道模式.
- * 调查碳化物检测和接受行为的神经基础.
- * 了解二氧化碳 (CO2) 检测在味觉与嗅觉系统中的作用.
主要方法:
- * 味觉神经元的解剖学分析.
- *成像用于监测神经活动.
- *行为测试以评估味觉反应.
主要成果:
- *发现了一种检测二氧化碳 (CO2) 的新型味觉神经元群.
- * 味觉神经元检测到的二氧化碳调解了味觉接受行为.
- * 取决于环境的二氧化碳检测:口味系统介导接受,嗅觉系统介导避免.
结论:
- * Drosophila melanogaster 具有碳酸水 (CO2) 的味道模式.
- *这种味觉感知可能有助于检测微生物中的营养素.
- *这些发现表明,碳化味道可能存在于其他生物体中.
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