Strukturuntersuchungen am Gehirn von Formica

Goll, W.

doi:10.1007/bf00407612

Cited by 96 publications

(59 citation statements)

References 31 publications

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“…Visual input to the collar has been convincingly demonstrated only in honey bees [Mobbs, 1982;Gronenberg, 1986]. Vowles [1955;1964] and Goll [1967] found basically the same visual tracts in the honey bee and in the ant Formica rufa but, similar to previous authors, they were not able to demonstrate an actual connection between the collar and the optic lobes. Such a connection has now been established for ants of different subfamilies.…”

Section: A Common Design Of Hymenopteran Mushroom Bodiessupporting

confidence: 54%

“…In all insects studied [Burrows et al, 1982;Homberg et al, 1988;Malun et al, 1993], including the honey bee [Mobbs, 1982;Homberg, 1984] and ants [Formica; Jawlowski, 1959;Vowles, 1955;Goll, 1967], neuropil homologous to the lip region receives input that originates from the antennal glomeruli. Visual input to the collar has been convincingly demonstrated only in honey bees [Mobbs, 1982;Gronenberg, 1986].…”

Section: A Common Design Of Hymenopteran Mushroom Bodiesmentioning

confidence: 99%

“…The interconnection of the mushroom bodies with their surrounding neuropil is so prolific that the function of the mushroom bodies cannot be inferred without considering the organization and significance of the protocerebral lobes [Kenyon, 1896;Mobbs, 1982;Goll, 1967;Strausfeld et al, 1998;Ito et al, 1998]. The input to the calyx is easier to assess: in most insects that rely on olfaction the calyces receive olfactory input from the antennal lobes and are thus a major secondary olfactory neuropil.…”

Section: Introductionmentioning

confidence: 99%

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Modality-Specific Segregation of Input to Ant Mushroom Bodies

Gronenberg

1999

Brain Behav Evol

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The mushroom bodies are central brain neuropils involved in the control of complex behavior. In ants, the mushroom bodies are relatively large compared to those of honey bees, whereas the optic lobes of ants are considerably smaller. The general morphology of ant mushroom bodies is similar to that of honey bees. As in other Hymenoptera, the main input region of the mushroom bodies, the calyx, is subdivided into three compartments: the lip, the collar, and the basal ring. In many ant species this compartmentalization is not obvious and can only be visualized using neuronal tracers. The lip region receives antennal input and is large in all ant species. It appears to be composed of at least two different regions that have not yet been characterized in detail. The collar is large in other Hymenoptera, yet in ant workers it varies in size and is always much smaller than the lip region. The collar receives visual input and is relatively larger in males, which generally are more dependant on vision than are workers. The basal ring receives input from both the optic and antennal lobes. In one ant tribe, the Ponerini, the collar region appears to have changed its position, but based on afferent input it appears to be homologous to the hymenopteran collar. Generally, the composition of the mushroom body calyx correlates with the living conditions of ants, reflecting the great importance of olfaction and the lesser and more variable significance of vision for workers of the observed ant species.

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Section: A Common Design Of Hymenopteran Mushroom Bodiessupporting

confidence: 54%

Section: A Common Design Of Hymenopteran Mushroom Bodiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Modality-Specific Segregation of Input to Ant Mushroom Bodies

Gronenberg

1999

Brain Behav Evol

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“…In calycal neuropils of Periplaneta, serotonin-immunorective neuronal elements were observed (Salecker and Distler, 1990), and also GABA-like immunoreactive calycal giant neurons are thought to have an inhibitory role in microglomeruli of MB calyces (Schürmann, 1973;Nishikawa et al, 1998;Nishino and Mizunami, 1998;Yamazaki et al, 1998;Strausfeld and Li, 1999). Small glomerular structures are also seen in calycal neuropils of ant MBs (Goll, 1967), but it is not yet confirmed whether the calycal glomeruli in ants contain GABA-like or serotonin-immunoreactive neuronal elements. Considering the terminal profile of the CIN in the calyces, serotonin as a neuromodulator might affect the calycal glomeruli.…”

Section: Serotonin-immunoreactive Neurons In the Mushroom Bodymentioning

confidence: 99%

“…The MBs of hymenopteran social insects are particularly large, and the neuronal architectures have been revealed: Kenyon cells, intrinsic neurons of MBs, extend dendritic arbors connecting with input neurons in the calyces and extend axon terminals connecting with output neurons in the peduncle and lobes (Goll, 1967;Mobbs, 1982). The calyces of social bees, paper wasps and formicine ants appear to be subdivided into concentric subdivisions: lip, collar, and basal ring (Mobbs, 1982;Homberg, 1984;Gronenberg, 1986;Gronenberg, 2001;Strausfeld, 2002).…”

Section: Introductionmentioning

confidence: 99%

Immunocytochemical Identification of Neuroactive Substances in the Antennal Lobe of the Male Silkworm Moth Bombyx mori

Iwano

Kanzaki²

2005

Zoological Science

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Topography of four classes of kenyon cells in the mushroom bodies of the cockroach

et al. 1998

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Mushroom bodies (MBs), which are higher centers in the insect brain, are implicated in associative memory and in the control of some behaviors. Intrinsic neurons of the MB, called Kenyon cells, receive synaptic inputs from axon terminals of input neurons in the calyx. Axons of Kenyon cells project into the pedunculus and to the alpha and beta lobes, where they make synaptic connections with dendrites of extrinsic (output) neurons. In this study, we examined the morphology of Kenyon cells in the cockroach by using Golgi stains and found that they can be classified into four classes (K1, K2, K3, and K4), according to the diameter, location, and morphology of the cell bodies, dendrites, and axons. The somata of Kenyon cells of different classes occupy different concentric zones; K1 cells occupy the most central zone, and K4 cells occupy the most peripheral zone. The main processes of Kenyon cells of different classes also occupy different concentric zones in the calyx. Dendrites of K2 and K3 cells are distributed throughout the calycal neuropil, whereas those of K1 and K4 cells cover the outer and inner halves of the depth of the neuropil, respectively. In the pedunculus and the alpha and beta lobes, axons of Kenyon cells of different classes occupy different zones, although the separation is not complete. A class of extrinsic neurons in the a lobe has dendrite-like arbors that cover the zones where either K1, K2, or K3 are located. These neurons probably transmit signals of each class of Kenyon cells. We conclude that, in the cockroach, four classes of Kenyon cells subdivide the cell body region, pedunculus, and lobes of the MBs, whereas subdivision is less prominent in the calycal neuropil.

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Strukturuntersuchungen am Gehirn von Formica

Cited by 96 publications

References 31 publications

Modality-Specific Segregation of Input to Ant Mushroom Bodies

Modality-Specific Segregation of Input to Ant Mushroom Bodies

Immunocytochemical Identification of Neuroactive Substances in the Antennal Lobe of the Male Silkworm Moth Bombyx mori

Topography of four classes of kenyon cells in the mushroom bodies of the cockroach

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