MALE-SPECIFIC STRUCTURES IN THE OLFACTORY SYSTEM OF MYSIDS (MYSIDACEA, CRUSTACEA)
MALE-SPECIFIC STRUCTURES IN THE OLFACTORY SYSTEM OF MYSIDS (MYSIDACEA, CRUSTACEA)
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DOI：
10.1007/bf00318804
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发表时间：
1992-05-01
影响因子：
3.6
通讯作者：
HALLBERG, E
中科院分区：
文献类型：
--
作者：
JOHANSSON, KUI;HALLBERG, E
糠虾嗅觉系统的性别二态性表现在雄性特有的感器和神经毡区域。 感器位于第一触角上，或者位于称为阳叶的小附属器上，或者位于花梗内的结构上。 在这两种情况下，都有一种肌肉排列参与了感觉器轴承部分的运动。 每个感器都由一个感觉细胞支配，该感觉细胞的树突发育出两个不分支的外部树突节；由于它们的形态，建议具有化学感受功能。 来自双极感觉细胞的传入信号会聚到一个小的神经纤维区域，该区域仅存在于男性中。 神经纤维网位于每对嗅叶的前面。
A sexual dimorphism in the olfactory system of mysids is displayed in male-specific sensilla and neuropil areas. The sensilla are found on the first antenna, either on a small appendage, called the lobus masculinus, or on a structure within the peduncle. In both cases there is a muscular arrangement that is involved in the movement of sensilla-bearing parts. Each sensillum is innervated by one sensory cell whose dendrite develops two unbranched outer dendritic segments; due to their morphology a chemoreceptive function is suggested. The afferents from the bipolar sensory cells converge onto a small neuropil area, found in males only. The neuropil is located anteriorly to each of the paired olfactory lobes.