感官生物学. 感官生物学. 在一个动态的化学环境中,传粉者对花朵的歧视
Jeffrey A Riffell1, Eli Shlizerman2, Elischa Sanders3
1Department of Biology, University of Washington, Seattle, WA 98195-1800, USA. jriffell@u.washington.edu.
Science (New York, N.Y.)
|June 28, 2014
概括
像这样的授粉者可以追踪花的气味,但背景气味会干扰他们的嗅觉. 环境的气味混合改变了的检测和追踪目标花气味的方式.
科学领域:
- 嗅觉生态学 嗅觉生态学
- 神经伦理学 神经伦理学
- 化学通讯 化学通讯
背景情况:
- 授粉者依靠嗅觉来寻找花资源.
- 了解授粉者如何将目标气味与复杂的气味景观区分开来至关重要.
- 人类产生的气味增加了自然气味环境的复杂性.
研究的目的:
- 研究背景气味如何影响授粉者嗅觉追踪.
- 为了确定气味动态对授粉者导航的影响.
- 阐明在复杂环境中嗅觉歧视背后的神经机制.
主要方法:
- 测量来自Datura wrightii花的气味羽毛.
- 评估曼杜卡六甲的嗅觉跟踪行为与气味羽毛的关系.
- 分析背景气味对天线叶神经活动的影响.
主要成果:
- 花的气味羽毛是动态的,很快与背景气味混合.
- 的气味追踪能力受到背景气味的组成和频率的显著影响.
- 背景气味调节在的天线叶中对目标气味的神经表示.
结论:
- 环境中的气味混合物对授粉者的嗅觉感知和行为产生了重大影响.
- 在叶中激发和抑制的平衡是嗅觉歧视的关键.
- 授粉者定位花朵的能力取决于周围的嗅觉景观.
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