Limits on volume changes in the mushroom bodies of the honey bee brain
Limits on volume changes in the mushroom bodies of the honey bee brain
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DOI：
10.1002/neu.10256
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发表时间：
2003-11-01
期刊：
影响因子：
--
通讯作者：
Robinson, GE
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文献类型：
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作者：
Fahrbach, SE;Farris, SM;Robinson, GE
成年工蜂的行为成熟受到保幼激素（JH）滴度上升的影响，并且在时间上与蘑菇体神经元体积的增加相关，蘑菇体是参与学习和记忆的大脑区域。我们探讨了这种神经元扩张的稳定性及其对JH的可能依赖性。我们研究了蘑菇体的体积在成年蜜蜂被剥夺JH通过手术切除的源腺体，咽侧体。我们还询问，当蜜蜂不再从事觅食时，觅食者中检测到的神经元扩张是否仍然存在，这可能是因为冬季的到来，也可能是因为蜂群的社会结构被实验性地操纵，使一些蜜蜂从觅食恢复到照料育雏（护理）。结果表明，成年暴露于JH是没有必要的蘑菇体神经元的生长，和成年蜜蜂的蘑菇体神经元的体积不会减少，如果觅食停止。这些结果被解释的定性模型，假定蘑菇体神经元体积扩大的蜜蜂的背景下，经验独立和经验依赖的组件。(C)2003 Wiley Periodicals，Inc. I Neurobiol 57：141-151，2003.
The behavioral maturation of adult worker honey bees is influenced by a rising titer of juvenile hormone (JH), and is temporally correlated with an increase in the volume of the neuropil of the mushroom bodies, a brain region involved in learning and memory. We explored the stability of this neuropil expansion and its possible dependence on JH. We studied the volume of the mushroom bodies in adult bees deprived of JH by surgical removal of the source glands, the corpora allata. We also asked if the neuropil expansion detected in foragers persists when bees no longer engage in foraging, either because of the onset of winter or because colony social structure was experimentally manipulated to cause some bees to revert from foraging to tending brood (nursing). Results show that adult exposure to JH is not necessary for growth of the mushroom body neuropil, and that the volume of the mushroom body neuropil in adult bees is not reduced if foraging stops. These results are interpreted in the context of a qualitative model that posits that mushroom body neuropil volume enlargement in the honey bee has both experience-independent and experience-dependent components. (C) 2003 Wiley Periodicals, Inc. I Neurobiol 57: 141-151, 2003.