Temporal responses of bumblebee gustatory neurons to sugars.
Temporal responses of bumblebee gustatory neurons to sugars.
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DOI：
10.1016/j.isci.2022.104499
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发表时间：
2022-07-15
期刊：
影响因子：
5.8
通讯作者：
Wright, Geraldine A.
中科院分区：
文献类型：
--
作者：
Parkinson, Rachel H.;Kessler, Sebastien C.;Scott, Jennifer;Simpson, Alexander;Bu, Jennifer;Al-Esawy, Mushtaq;Mahdi, Adam;Miriyala, Ashwin;Wright, Geraldine A.
味觉允许识别有价值的营养素和避免潜在的毒素。以前，我们发现大黄蜂有一个专门的机制，感受糖，其中两个味觉受体神经元（GRNs）内的盔状感器的蜜蜂的口器表现出爆发的尖峰。在这里，我们表明，这些GRNs的时间发射模式将糖分成四个不同的组，与糖的营养价值和适口性相关。我们还确定了第三个GRN，响应于相对高浓度的果糖，蔗糖和麦芽糖的刺激。非代谢性或毒性的糖抑制了GRNs对蔗糖的反应。这些编码糖值信息的能力是对大黄蜂甜味感的一种改进，这可能是一种适应，可以精确计算花蜜的性质和营养价值。每个盔状感器最多有三个味觉受体神经元（GRN）对糖有反应大黄蜂GRN对高营养价值的糖有反应时产生爆发模式GRN的反应模式可按糖的营养价值分组非代谢糖和有毒糖抑制GRN对蔗糖的爆发反应生物科学;神经科学;感觉神经科学
The sense of taste permits the recognition of valuable nutrients and the avoidance of potential toxins. Previously, we found that bumblebees have a specialized mechanism for sensing sugars whereby two gustatory receptor neurons (GRNs) within the galeal sensilla of the bees’ mouthparts exhibit bursts of spikes. Here, we show that the temporal firing patterns of these GRNs separate sugars into four distinct groups that correlate with sugar nutritional value and palatability. We also identified a third GRN that responded to stimulation with relatively high concentrations of fructose, sucrose, and maltose. Sugars that were nonmetabolizable or toxic suppressed the responses of bursting GRNs to sucrose. These abilities to encode information about sugar value are a refinement to the bumblebee’s sense of sweet taste that could be an adaptation that enables precise calculations of the nature and nutritional value of floral nectar. Up to three gustatory receptor neurons (GRNs) per galeal sensillum respond to sugars Bumblebee GRNs produce a bursting pattern in response to sugars of high nutritional value Response patterns of GRNs can be grouped by sugar nutritional value Nonmetabolizable and toxic sugars suppress the responses of bursting GRNs to sucrose Biological sciences; Neuroscience; Sensory neuroscience
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影响因子：
64.5
作者：
Miyamoto T;Slone J;Song X;Amrein H
通讯作者：
Amrein H
DOI：
10.3791/54233
发表时间：
2016-07-21
期刊：
Journal of visualized experiments : JoVE
影响因子：
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作者：
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DOI：
10.1002/neu.20063
发表时间：
2004-12-01
期刊：
JOURNAL OF NEUROBIOLOGY
影响因子：
--
作者：
Hiroi, M;Meunier, N;Tanimura, T
通讯作者：
Tanimura, T