Elektronenmikroskopische Untersuchung der Entwicklung der vegetativen (Grenzstrang-) und spinalen Ganglien bei Gallus domesticus

Wechsler, W.; Schmekel, L.

doi:10.1007/bf01239924

Cited by 50 publications

(19 citation statements)

References 10 publications

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“…In the present study the centriole in the ganglion cell has not been encountered as was demonstrated only by FORSS-MANN (1964) (CRAVIOTO, 1962;UNSICKER, 1967;WECHSLER and SCHMEKEL, 1967;BECKER, 1968;ELFVIN, 1968;WATARI, 1968;YOSHIDA, 1968;COLBORN and ADAMO, 1969, etc. ).…”

Section: Discussionmentioning

confidence: 50%

“…In chicken intrapancreatic ganglia axo-somatic synapses have not been demonstrated clearly, but their existence should not be utterly denied since the observations in the present study have not been carried out in completely serial sections covering (DE LORENZO,1960;ELFVIN, 1963b;YAMAMOTO, 1963;FORSSMANN, 1964;TAKAHASHI and HAMA, 1965a;DE LEMOS and PICK, 1966;UNSICKER, 1967;WECHSLER and SCHMEKEL, 1967;BECKER, 1968;YOSHIDA, 1968;COLBORN and ADAMO, 1969). Specializations of synaptic membranes have also been confirmed in axo-dendritic synapses of the chicken intrapancreatic ganglion.…”

Section: Discussionmentioning

confidence: 67%

“…Concerning interneuronal synapses in autonomic ganglia of various animal species numerous ultrastructural studies have been carried out by many investigators (BARTON, 1957;TAXI, 1957;CAUSEY and BARTON, 1958;DE LORENZO, 1960;CRAVIOTO, 1962;GRILLO and PALAY, 1962;ELFVIN 1963a, b;PICK, 1963;YAMAMOTO, 1963;HESS, 1965;FORSSMANN, 1964;PICK, DE LEMOS and GERDIN, 1964;SZENTAGOTHAI, 1964;TAKA-HASHI and HAMA, 1965a;DE LEMOS and PICK, 1966;WECHSLER and SCHMEKEL, 1967;TAKAHASHI, 1967;UNSICKER, 1967;BECKER, 1968;WATARI, 1968;YOSHIDA, 1968;COLBORN and ADAMO, 1969;HUIKURI, 1969). In autonomic ganglia the existence of axo-somatic, axo-dendritic and axo-axonal synapses has been proposed by the authors mentioned above.…”

Section: Discussionmentioning

confidence: 99%

“…(ELFVIN 1963;UNSICKER, 1967;WECHSLER and SCHMEKEL, 1967;WATARI, 1968). ganglionic fibers of the chicken intrapancreatic ganglion may possibly also correspond to those observed by WATARI (1968) and "peripheral" satellite cell (FORSSMANN, 1964;UNSICKER, 1967;BECKER, 1968), but others merely with a single name such as "satellite cell" (CRAVIOTO, 1962;ELFVIN, 1963a), or Schwann cell (DE LORENZO, 1960 (ELFVIN, 1963a;RHODIN, 1963;TAKAHASHI and HAMA, 1965b;UNSICKER, 1967 (EDWARDS, RUSKA and DE HARVEN, 1958;FORSSMANN, 1964;BECKER, 1968).…”

Section: Discussionmentioning

confidence: 99%

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Fine Structure of Autonomic Ganglion in the Chicken Pancreas

Kudo

1971

Arch. Histol. Jap., Arch. Histol. Jpn

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Section: Discussionmentioning

confidence: 50%

Section: Discussionmentioning

confidence: 67%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Fine Structure of Autonomic Ganglion in the Chicken Pancreas

Kudo

1971

Arch. Histol. Jap., Arch. Histol. Jpn

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“…3). In the sympathetic ganglia and in the aortic and coeliac plexuses, two types of cells were found, differing in size and fluorescence intensity: large cells, showing a faint greenish fluorescence, which correspond to the differentiating neurons seen in normal ganglia (32,33), and smaller cells, more intensely fluorescent, already described in the sympathetic ganglia of many species (see ref. 34 for review).…”

mentioning

confidence: 75%

Adrenergic differentiation of cells of the cholinergic ciliary and Remak ganglia in avian embryo after in vivo transplantation.

Douarin¹,

Teillet²,

Ziller³

et al. 1978

Proc. Natl. Acad. Sci. U.S.A.

110

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We have previously shown that the neural crest is regionalized early into "adrenergic" and "cholinergic" areas from which arise, respectively, the sympathetic and parasympathetic ganglioblasts of the autonomic nervous system. This regionalization does not correspond, however, to an irreversible determination of the neural crest cells since, under certain experimental conditions, cholinergic cells can arise from the adrenergic region of the crest and vice versa. The phenotypic expression of the presumptive ganglion cells appears to be responsive to the environmental conditions they encounter during and/or after their migration. In the present study we show that the developmental behavior of parasympathetic ganlion cells which have stopped migrating and at least some of which have started to differentiate into cholinergic neurons can be profoundly modified if they are transplanted into a younger embryo at the trunk neural crest level. The grafted ganglion cells start migrating and stop in the same sites as the host neural crest cells. Their further differentiation depends on their localization.When situated in the adrenergic ganglia and in the suprarenal gland they synthesize catecholamines, whereas they differentiate into nonfluorescent, silver-staining ganglion cells if they migrate in the gut wall. Thus, the differentiation of autonomic neurons is dependent on tissue interactions even after the neural crest cells have grouped to form ganglionic structures in which biochemical differentiation is already in progress. The ganglion cells of the autonomic nervous system arise from the neural crest. Using a cell-marking technique by means of which the migration of the neural crest cells can be followed in the developing avian embryo, we have been able to identify various regions in the neural axis according to their role in the formation of the autonomic nervous system: one gives rise to the cholinergic enteric ganglia, another participates in the constitution of the sympathetic adrenergic ganglia and the adrenomedulla, and two areas produce both adrenergic and cholinergic cells (Fig. 1) (1-3).The presumptive fate of the ganglioblasts originating from the regions so defined is not irreversibly fixed. The migration pattern of the crest cells can be changed by transplanting the "vagal" region of the neural crest at the "adrenomedullary" level and vice versa. Under these conditions, presumptive adrenergic ganglioblasts migrate into the gut and differentiate there into fully functional cholinergic ganglia, while cephalic neural crest cells colonize the suprarenal gland and develop into adrenomedullary cells (4-6). Therefore, the capacity for developing into cholinergic and adrenergic ganglion and paraganglion cells appears widespread in the whole neural crest (2, 3), the expression of either one or the other phenotype being dependent on the tissue environment to which the cells are subsequently subjected. Moreover, the plasticity of young auThe costs of publication of this article were defrayed in part by the pa...

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Ultrastructural and fluorescence histochemical studies of developing sympathetic ganglia in the rabbit

Papka

1972

Am. J. Anat.

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The development of thoracic sympathetic ganglia was studied in rabbit fetuses at 14 to 30 days of gestation by light, electron, and fluorescence microscopy. Changes that occurred during the development of sympathetic neurons, supporting cells, and granule-containing cells are described and the following conclusions drawn.( 1 ) Sympathetic neurons and granule-containing cells arise from a common "indifferent cell" precursor. (2) Monoamine fluorescence ( a manifestation of the presence of catecholamines) appears early in the development of sympathetic neuroblasts. ( 3 ) The development of neuroblasts in a sympathetic ganglion is asynchronous; i.e., each neuroblast develops at its own rate, irrespective of the rate of development of its sister cells. ( 4 ) Granulecontaining and catecholamine-storing cells develop rapidly and probably become potentially functional early in the life of the fetus, as inferred from the abundance of dense-core vesicles and intense monoamine fluorescence. ( 5 ) The derivation of supporting cells ("satellite" and Schwann cells) could not be determined. They had differentiated into an easily recognizable cell form in the youngest specimens studied, and appeared to be enveloping cell bodies (as satellite cells) or axons (as Schwann cells) in all specimens.

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Elektronenmikroskopische Untersuchung der Entwicklung der vegetativen (Grenzstrang-) und spinalen Ganglien bei Gallus domesticus

Cited by 50 publications

References 10 publications

Fine Structure of Autonomic Ganglion in the Chicken Pancreas

Fine Structure of Autonomic Ganglion in the Chicken Pancreas

Adrenergic differentiation of cells of the cholinergic ciliary and Remak ganglia in avian embryo after in vivo transplantation.

Ultrastructural and fluorescence histochemical studies of developing sympathetic ganglia in the rabbit

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