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Showing 1 to 12 of 185 entries
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Building the antennal lobe: engrailed expression reveals a contribution from protocerebral neuroblasts in the grasshopper Schistocerca gregaria.

Arthropod structure & development

Boyan G, Williams L.
PMID: 18088932
Arthropod Struct Dev. 2000 Jul;29(3):267-74. doi: 10.1016/s1467-8039(01)00009-3.

The expression pattern of the engrailed protein was studied in neuroblasts which delaminate at the border of the protocerebrum and antennal lobe of the deutocerebrum in the early embryonic brain of the grasshopper. The antennal lobe is a complex...

The predatory legs of Philonthus marginatus (Coleoptera, Staphylinidae): functional morphology and tarsal ultrastructure.

Arthropod structure & development

Betz O, Mumm R.
PMID: 18088947
Arthropod Struct Dev. 2001 Nov;30(2):77-97. doi: 10.1016/s1467-8039(01)00029-9.

Representatives of the staphylinid beetle Philonthus marginatus are characterized by highly modified raptorial forelegs which are used to strike prey in a particularly fast manner. Beetles ready to capture prey remain in a characteristic precapture ambush posture characterized by...

Ultrastructure and function of nurse cells in phthirapterans. Possible function of ramified nurse cell nuclei in the cytoplasm transfer.

Arthropod structure & development

Zelazowska M, Biliński SM.
PMID: 18088951
Arthropod Struct Dev. 2001 Nov;30(2):135-43. doi: 10.1016/s1467-8039(01)00030-5.

The structure of nurse cells as well as the distribution of cytoskeletal elements (actin filaments, microtubules) in three representatives of phthirapterans: the pig louse, Haematopinus suis (Anoplura) and bird lice, Eomenacanthus stramineus, Columbicola columbae (Mallophaga) were investigated. All three...

The endoskeletal structures in arthropods: cytology, morphology and evolution.

Arthropod structure & development

Bitsch C, Bitsch J.
PMID: 18088953
Arthropod Struct Dev. 2002 Feb;30(3):159-77. doi: 10.1016/s1467-8039(01)00032-9.

The paper proposes an overview of the endoskeletal structures of the head and trunk in the different arthropod groups: Chelicerata, Crustacea, Myriapoda and Hexapoda (=Insecta s.l.). Two major endoskeletal systems are reported with their cytological characteristics: those made up...

Ultrastructural characterization of antennal sensilla and immunocytochemical localization of a chemosensory protein in Carausius morosus Brünner (Phasmida: Phasmatidae).

Arthropod structure & development

Monteforti G, Angeli S, Petacchi R, Minnocci A.
PMID: 18088955
Arthropod Struct Dev. 2002 Feb;30(3):195-205. doi: 10.1016/s1467-8039(01)00036-6.

The aim of this work was to investigate the olfactory system of the walking stick insect, Carausius morosus. Morphological, ultrastructural and immunocytochemical studies of adult female antennae were conducted by scanning and transmission electron microscopy. Extensive cross-section series were...

A light and electron microscopical study of the spermathecae and ventral receptacle of Anastrepha suspensa (Diptera: Tephritidae) and implications in female influence of sperm storage.

Arthropod structure & development

Fritz AH, Turner FR.
PMID: 18088963
Arthropod Struct Dev. 2002 Jun;30(4):293-313. doi: 10.1016/s1467-8039(01)00038-x.

Female insects with multiple sperm storage organs may potentially influence patterns of paternity by differential storage of sperm from competing males. The Caribbean Fruit Fly, Anastrepha suspensa, stores sperm differentially with respect to its three spermathecae. To understand the...

Ultrastructure of the excretory duct in the silk gland of the sugarcane borer Diatraea saccharalis (Lepidoptera: Pyralidae).

Arthropod structure & development

Victoriano E, Gregório EA.
PMID: 18088967
Arthropod Struct Dev. 2002 Sep;31(1):15-21. doi: 10.1016/S1467-8039(02)00005-9.

The excretory duct in the silk gland of the sugarcane borer Diatraea saccharalis consists of two morphologically distinct regions, recognized by scanning and transmission electron microscopy. The thin posterior region, adjacent to the glandular region, presents a regular surface....

Morphological and molecular data argue for the labrum being non-apical, articulated, and the appendage of the intercalary segment in the locust.

Arthropod structure & development

Boyan GS, Williams JL, Posser S, Bräunig P.
PMID: 18088971
Arthropod Struct Dev. 2002 Sep;31(1):65-76. doi: 10.1016/S1467-8039(02)00016-6.

Our analysis of head segmentation in the locust embryo reveals that the labrum is not apical as often interpreted but constitutes the topologically fused appendicular pair of appendages of the third head metamere. Using molecular, immunocytochemical and retrograde axonal...

Common design in a unique midline neuropil in the brains of arthropods.

Arthropod structure & development

Loesel R, Nässel DR, Strausfeld NJ.
PMID: 18088972
Arthropod Struct Dev. 2002 Sep;31(1):77-91. doi: 10.1016/S1467-8039(02)00017-8.

Most insects possess an assemblage of midline neuropils in their protocerebrum called the central complex. Recent studies have identified comparable assemblages in the malacostracan protocerebrum. Studies of Drosophila melanogaster locomotory mutants suggest that in insects one role for the...

Hagen's glands of the parasitic wasp Diachasmimorpha longicaudata (Hymenoptera: Braconidae): ultrastructure and the detection of entomopoxvirus and parasitism-specific proteins.

Arthropod structure & development

Khoo CC, Lawrence PO.
PMID: 18088975
Arthropod Struct Dev. 2002 Nov;31(2):121-30. doi: 10.1016/s1467-8039(02)00021-x.

Hagen's glands of males of the parasitic wasp Diachasmimorpha longicaudata (Hymenoptera: Braconidae) secrete compounds that are involved in courtship and defense. Like the poison glands of female wasps, the Hagen's glands are secretory, membranous, and of ectodermal origin. The...

Morphology and formation of the eggshell in the tarnished plant bug, Lygus lineloaris (Palisot de Beauvois) (Hemiptera: Miridae).

Arthropod structure & development

Ma PW, Baird S, Ramaswamy SB.
PMID: 18088976
Arthropod Struct Dev. 2002 Nov;31(2):131-46. doi: 10.1016/s1467-8039(02)00019-1.

Scanning and transmission electron microscopy were used to study the morphology and formation of the eggshell in the tarnished plant bug, Lygus lineolaris. Eggs are bean-shaped, with an operculum at the anterior end surrounded by a row of 36-40...

Female reproductive system of the decapitating fly Pseudacteon wasmanni Schmitz (Diptera: Phoridae).

Arthropod structure & development

Zacaro AA, Porter SD.
PMID: 18088990
Arthropod Struct Dev. 2003 Apr;31(4):329-37. doi: 10.1016/S1467-8039(02)00049-X.

Pseudacteon wasmanni is a South American decapitating fly that parasitizes workers of Solenopsis fire ants. We used light microscopy (historesin serial-sectioning stained with Haematoxylin/Eosin) and scanning electron microscopy to show and analyze internal and whole external views of the...

Showing 1 to 12 of 185 entries