Functional morphology and evolutionary aspects of unusual antennal circulatory organs in Labidura riparia Pallas (Labiduridae), Forficula auricularia L. and Chelidurella acanthopygia gene (Forficulidae) (Insecta : Dermaptera)

Pass, G.

Amsterdam : Elsevier
ISSN:
0020-7322
Source:
Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
Topics:
Biology
Type of Medium:
Electronic Resource
URL:
_version_ 1798290884678123521
autor Pass, G.
autorsonst Pass, G.
book_url http://dx.doi.org/10.1016/0020-7322(88)90004-9
datenlieferant nat_lic_papers
fussnote The antennal circulatory organs in the earwigs Labidura riparia Pallas (Labiduridae), Forficula auricularia L. and Chelidurella acanthopygia Gene (Forficulidae) (Dermaptera) represent a functional type that has not been found in other insects. An independent organ exists for each antenna, consisting of a pulsatile ampulla connected to an antennal blood vessel. The ampulla is attached to the frontal cuticle medial to the antenna base and forms a thin-walled sac with a valved ostium on its ventral side. The ampulla wall epithelium is not muscular, but consists of elastic connective tissue. The pumping movements are affected by a precerebral frontopharyngeal muscle, which causes systolic compression of the ampulla upon contraction. The elasticity of both the ampulla and a band of connective tissue, which suspends it in the head capsule, passively effect diastole. The antennal vessel is quite voluminous in the head capsule, but narrows remarkably upon entrance into the antenna. It extends with a constant diameter to the apex, where it opens with a terminal pore. At the base of the vessel, near the ampulla, is a very delicate valve flap which prevents hemolymph backflow during diastole. A comparison of the antennal heart types in insects revealed fundamental differences in the attachments and functions of the associated muscles. In the Dermaptera, the involvement of a precerebral frontopharyngeal muscle suggests an ancestral condition.
hauptsatz hsatz_simple
identnr NLZ188636188
issn 0020-7322
journal_name International Journal of Insect Morphology and Embryology
materialart 1
package_name Elsevier
publikationsort Amsterdam
publisher Elsevier
reference 17 (1988), S. 103-112
search_space articles
shingle_author_1 Pass, G.
shingle_author_2 Pass, G.
shingle_author_3 Pass, G.
shingle_author_4 Pass, G.
shingle_catch_all_1 Pass, G.
Functional morphology and evolutionary aspects of unusual antennal circulatory organs in Labidura riparia Pallas (Labiduridae), Forficula auricularia L. and Chelidurella acanthopygia gene (Forficulidae) (Insecta : Dermaptera)
0020-7322
00207322
Elsevier
shingle_catch_all_2 Pass, G.
Functional morphology and evolutionary aspects of unusual antennal circulatory organs in Labidura riparia Pallas (Labiduridae), Forficula auricularia L. and Chelidurella acanthopygia gene (Forficulidae) (Insecta : Dermaptera)
0020-7322
00207322
Elsevier
shingle_catch_all_3 Pass, G.
Functional morphology and evolutionary aspects of unusual antennal circulatory organs in Labidura riparia Pallas (Labiduridae), Forficula auricularia L. and Chelidurella acanthopygia gene (Forficulidae) (Insecta : Dermaptera)
0020-7322
00207322
Elsevier
shingle_catch_all_4 Pass, G.
Functional morphology and evolutionary aspects of unusual antennal circulatory organs in Labidura riparia Pallas (Labiduridae), Forficula auricularia L. and Chelidurella acanthopygia gene (Forficulidae) (Insecta : Dermaptera)
0020-7322
00207322
Elsevier
shingle_title_1 Functional morphology and evolutionary aspects of unusual antennal circulatory organs in Labidura riparia Pallas (Labiduridae), Forficula auricularia L. and Chelidurella acanthopygia gene (Forficulidae) (Insecta : Dermaptera)
shingle_title_2 Functional morphology and evolutionary aspects of unusual antennal circulatory organs in Labidura riparia Pallas (Labiduridae), Forficula auricularia L. and Chelidurella acanthopygia gene (Forficulidae) (Insecta : Dermaptera)
shingle_title_3 Functional morphology and evolutionary aspects of unusual antennal circulatory organs in Labidura riparia Pallas (Labiduridae), Forficula auricularia L. and Chelidurella acanthopygia gene (Forficulidae) (Insecta : Dermaptera)
shingle_title_4 Functional morphology and evolutionary aspects of unusual antennal circulatory organs in Labidura riparia Pallas (Labiduridae), Forficula auricularia L. and Chelidurella acanthopygia gene (Forficulidae) (Insecta : Dermaptera)
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source_archive Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
timestamp 2024-05-06T08:23:49.569Z
titel Functional morphology and evolutionary aspects of unusual antennal circulatory organs in Labidura riparia Pallas (Labiduridae), Forficula auricularia L. and Chelidurella acanthopygia gene (Forficulidae) (Insecta : Dermaptera)
titel_suche Functional morphology and evolutionary aspects of unusual antennal circulatory organs in Labidura riparia Pallas (Labiduridae), Forficula auricularia L. and Chelidurella acanthopygia gene (Forficulidae) (Insecta : Dermaptera)
The antennal circulatory organs in the earwigs Labidura riparia Pallas (Labiduridae), Forficula auricularia L. and Chelidurella acanthopygia Gene (Forficulidae) (Dermaptera) represent a functional type that has not been found in other insects. An independent organ exists for each antenna, consisting of a pulsatile ampulla connected to an antennal blood vessel. The ampulla is attached to the frontal cuticle medial to the antenna base and forms a thin-walled sac with a valved ostium on its ventral side. The ampulla wall epithelium is not muscular, but consists of elastic connective tissue. The pumping movements are affected by a precerebral frontopharyngeal muscle, which causes systolic compression of the ampulla upon contraction. The elasticity of both the ampulla and a band of connective tissue, which suspends it in the head capsule, passively effect diastole. The antennal vessel is quite voluminous in the head capsule, but narrows remarkably upon entrance into the antenna. It extends with a constant diameter to the apex, where it opens with a terminal pore. At the base of the vessel, near the ampulla, is a very delicate valve flap which prevents hemolymph backflow during diastole. A comparison of the antennal heart types in insects revealed fundamental differences in the attachments and functions of the associated muscles. In the Dermaptera, the involvement of a precerebral frontopharyngeal muscle suggests an ancestral condition.
topic W
uid nat_lic_papers_NLZ188636188