Modular structures in the mushroom body of the cockroach
Modular structures in the mushroom body of the cockroach
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DOI：
10.1016/s0304-3940(97)00438-2
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发表时间：
1997-07-04
影响因子：
2.5
通讯作者：
Okada, R
中科院分区：
文献类型：
--
作者：
Mizunami, M;Iwasaki, M;Okada, R
蘑菇体（MB）是昆虫大脑的高级中心，对嗅觉和其他形式的联想记忆至关重要。在这里，我们报告重复的模块化亚基（我们称之为板）存在于α叶的内部矩阵中，α叶是蟑螂MB的主要输出神经元。所采用的方法是没食子酸锇乙酯、博迪安还原银和高尔基体染色程序。总共 15 个深色板和 15 个浅板，每个由特定的内在神经元子集（凯尼恩细胞）组成，在整个 α 叶的长度上交替出现。 MB 输出神经元的主要类别之一，位于凯尼恩细胞的突触后，表现出分段的树突乔木，与所有其他板相互作用，即仅与深色或浅色板相互作用。当每个输出神经元与每组特定的深色或浅色板相互作用时，板可能充当传输 MB 输出信号的单元。 (C) 1997 爱思唯尔科学爱尔兰有限公司
The mushroom body (MB) is a higher center of the insect brain and is critical to olfactory and other forms of associative memory. Here, we report that repetitive modular subunits, which we refer to as slabs, are present in the internal matrix of the alpha lobe, a major output neuropil of the MB in the cockroach. The methods employed were osmium-ethyl gallate, Bodian-reduced silver, and Golgi staining procedures. A total of 15 dark and 15 pale slabs, each consisting of specific subsets of intrinsic neurons (Kenyon cells), alternate throughout the length of the alpha lobe. One of the major classes of MB output neurons, which are postsynaptic to Kenyon cells, exhibited segmented dendritic arbors that interact with every other slabs, i.e. only either dark or pale slabs. As each output neuron interacts with each specific set of dark or pale slabs, the slab likely functions as a unit for transmitting MB output signals. (C) 1997 Elsevier Science Ireland Ltd.