Comparaison des oeufs des lepidopteres Phalera Bucephala L. (Ceruridae), Acrolepia Assectella Z. et Plutella Maculipennis curt. (Plutellidae): morphologie et ultrastructures particulieres du chorion au contact du support vegetal

Chauvin, G.; Kahn, R. P.; Barrier, Roger

doi:10.1016/0020-7322(74)90020-8

Cited by 23 publications

(6 citation statements)

References 5 publications

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“…In P. barbarus the chorion is composed of two simple layers, endo-and exochorion, and has not such a complicated structure as that seen in the insect eggs (Chauvin, et al, 1974;Mitchell and Redmond, 1974;Vol.13,No.3 Internat. J. Acarol.…”

Section: Discussionmentioning

confidence: 99%

Egg-Shells in mites: Cytological aspects of vitelline envelope and chorion formation inPergamasus barbarusberlese (Gamasida, Pergamasidae)

Witaliński

1987

International Journal of Acarology

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Transformations leading to the appearance of the perivitelline space and vitelline envelope, the structure of the vitelline envelope, and the structure and origin of the chorion in Pergamasus barbarus were the subjects of ultrastructural studies. The follicular cells participate in the perivitelline space formation. The material of the vitelline envelope is secreted by exocytosis from the oocyte at the beginning of vitellogenesis. Later, the vitelline envelope is transformed into endochorion protecting the embryo from mechanical damage. Exochorion is secreted onto the endochorion during egg deposition. Double role of exochorion as plastron and as a structure protecting the embryo from dessication is suggested.

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Section: Discussionmentioning

confidence: 99%

Egg-Shells in mites: Cytological aspects of vitelline envelope and chorion formation inPergamasus barbarusberlese (Gamasida, Pergamasidae)

Witaliński

1987

International Journal of Acarology

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“…In both cases the eggs are already coated with a well-developed envelope. In the majority of insects and ticks the egg surface is covered by the vitelline envelope and chorion, and the latter can be penetrated by spermatozoa only because of the presence of openings (micropyle) [3,[24][25][26]29]. As far as the Chelicerata are concerned, detailed studies of fertilization have been made only in Limulus [27,28], whose eggs are devoid of chorion and micropyle [16] and the spermatozoa pass through the vitelline envelope probably due to the activity of their acrosomal enzymes.…”

Section: Discussionmentioning

confidence: 99%

Ultrastructural studies of egg envelopes in harvestmen (Chelicerata, Opiliones)

Witaliński¹,

Żuwała

1981

International Journal of Invertebrate Reproduction

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Ultrastructural studies of egg envelopes in four species of harvestmen have shown that a spongy vitelline envelope secreted by the oocyte appears on the oocyte surface at the beginning of vitellogenesis. As the oocytes grow, characteristic changes in the thickness and structure of the vitelline envelope can be observed. The homogeneous vitelline envelopes of eggs located inside the uterus are coated with a layer of loose, foamy material. The vitelline envelopes of laid eggs are covered only with mucus which binds the eggs together.The involvement of follicle cells in metabolic exchanges with the oocyte is suggested.

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“…In several Lepidoptera the cuticle lacks an epicuticle, the endocuticle adhering tightly to the internal side of the vitelline envelope Chauvin et al 1974). In several Orthoptera, secretion of the serosal cuticle coincides with water absorption by the egg (McFarlane 1970;Grellet 197 1 ; Moloo 197 1 ; Chapman and Page 1978).…”

Section: Sensitivity To Low and High Temperaturesmentioning

confidence: 96%

The eggs of Forficula auricularia L. (Dermaptera, Forficulidae): ultrastructure and resistance to low and high temperatures

Chauvin¹,

Hamon²,

Vancassel³

et al. 1991

Can. J. Zool.

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The morphology, ultrastructure, and resistance to low and high temperatures of the fertilized egg of Forficula auricularia were studied both before and after water absorption. The increase in volume resulting from water absorption did not modify the ultrastructure of the envelopes. The chorion was found to be made of five distinct layers and of a vitelline envelope under which a serosal cuticle was secreted by the embryo. Before hydration, the supercooling point of the egg was −27 °C; after hydration, it was −22 °C. Hydration did not alter the resistance of the egg to heat. It withstood a thermal rise to 36 °C without apparent damage. Morphological and physiological changes due to water absorption did not result in a modification of the viability of the eggs when they were exposed to temperature differences.

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Comparaison des oeufs des lepidopteres Phalera Bucephala L. (Ceruridae), Acrolepia Assectella Z. et Plutella Maculipennis curt. (Plutellidae): morphologie et ultrastructures particulieres du chorion au contact du support vegetal

Cited by 23 publications

References 5 publications

Egg-Shells in mites: Cytological aspects of vitelline envelope and chorion formation inPergamasus barbarusberlese (Gamasida, Pergamasidae)

Egg-Shells in mites: Cytological aspects of vitelline envelope and chorion formation inPergamasus barbarusberlese (Gamasida, Pergamasidae)

Ultrastructural studies of egg envelopes in harvestmen (Chelicerata, Opiliones)

The eggs of Forficula auricularia L. (Dermaptera, Forficulidae): ultrastructure and resistance to low and high temperatures

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