Ignell R, Anton S, Hansson B S
Department of Ecology, Lund University, S-223 62 Lund, Sweden.
Arthropod Struct Dev. 2000;29(4):295-305. doi: 10.1016/s1467-8039(01)00016-0.
Primary sensory projections and arborisations of higher-order neurons associated with the maxillary palps were examined in Tettigoniidae, Gryllidae, Tetrigidae and Acrididae representing the two sub-orders of Orthoptera, Ensifera and Caelifera. Anterograde filling and Golgi impregnation of maxillary receptor neurons revealed two patterns of innervation, the ensiferous and the caeliferous type. In both ensiferans and caeliferans, receptor neurons arborised within the tritocerebrum, the antennal motor- and mechano-sensory centre and the lobus glomerulatus. In ensiferans, additional areas of innervation were found in the lobus glomerulatus and in a previously undescribed neuropil, here referred to as the accessory lobus glomerulatus. In relation to the anatomical data a putative functional segregation of the neuropil into gustatory-, olfactory- and mechano-sensory centres is implied.
在代表直翅目两个亚目（长角亚目和短角亚目）的螽斯科、蟋蟀科、蚤蝼科和蝗科昆虫中，研究了与上颚须相关的初级感觉投射和高阶神经元的树突分支。对上颚感受器神经元进行顺行填充和高尔基染色，揭示了两种神经支配模式，即长角亚目型和短角亚目型。在长角亚目和短角亚目昆虫中，感受器神经元均在中脑、触角运动和机械感觉中枢以及小球叶内形成树突分支。在长角亚目昆虫中，在小球叶和一个先前未描述的神经纤维网（此处称为副小球叶）中发现了额外的神经支配区域。根据解剖学数据，推测神经纤维网可分为味觉、嗅觉和机械感觉中枢。
