The fine structure of colleterial glands in two cockroaches and three termites, including a detailed study of Cryptocercus punctulatus (Blattaria, Cryptocercidae) and Mastotermes darwiniensis (Isoptera, Mastotermitidae)

Courrent, Annie; Quennedey, André; Nalepa, Christine A.; Robert, Alain; Lenz, Michael; Bordereau, Christian

doi:10.1016/j.asd.2007.03.004

Cited by 26 publications

(26 citation statements)

References 28 publications

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“…The ootheca itself is formed from the frothy secretions of the accessory glands of the female genital complex, which gradually harden upon mixing (Hackman and Goldberg 1960, Kenchington and Flower 1969b, Fuseini and Kumar 1973, Kumar and Barnor 1974, Kramer et al 1989, Courrent et al 2008). Unlike other dictyopterans, mantodean oothecae are remarkable for exhibiting extensive architectural and cryptic variation, as well as variation in the mechanical properties of its constituent elements, mostly protein and calcium-based compounds (Rudall 1956, Hackman and Goldberg 1960, Kenchington and Flower 1969b, Kramer et al 1989, Walker et al 2012).…”

Section: Resultsmentioning

confidence: 99%

Manual of praying mantis morphology, nomenclature, and practices (Insecta, Mantodea)

Brannoch¹,

Frank²,

Rivera³

et al. 2017

109

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This study provides a comprehensive review of historical morphological nomenclature used for praying mantis (Mantodea) morphology, which includes citations, original use, and assignment of homology. All referenced structures across historical works correspond to a proposed standard term for use in all subsequent works pertaining to praying mantis morphology and systematics. The new standards are presented with a verbal description in a glossary as well as indicated on illustrations and images. In the vast majority of cases, originally used terms were adopted as the new standard. In addition, historical morphological topographical homology conjectures are considered with discussion on modern interpretations. A new standardized formulation to present foreleg femoral and tibial spines is proposed for clarity based on previous works. In addition, descriptions for methods of collection, curation, genital complex dissection, and labeling are provided to aid in the proper preservation and storage of specimens for longevity and ease of study. Due to the lack of consistent linear morphometric measurement practices in the literature, we have proposed a series of measurements for taxonomic and morphological research. These measurements are presented with figures to provide visual aids with homologous landmarks to ensure compatibility and comparability across the Order. Finally, our proposed method of pinning mantises is presented with a photographical example as well as a video tutorial available at http://mantodearesearch.com.

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Section: Resultsmentioning

confidence: 99%

Manual of praying mantis morphology, nomenclature, and practices (Insecta, Mantodea)

Brannoch¹,

Frank²,

Rivera³

et al. 2017

109

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“…Accessory gland secretions are associated with fertilization, antimicrobial activity, lubrication, embryo adhesion, uterine muscle contraction, defensive secretions and physical protection of embryos. Cockroaches and Mantids (both members of the Dictyoptera clade) have modified glands which produce 2 substances (one from the left and one from the right gland) which combine in the oviduct to generate an ootheca that encases their eggs and hardens into a protective coating [34], [35]. The kissing bug ( Rhodnius prolixus ) uses these glands to produce an adhesive secretion to glue eggs to substrate [36].The accessory glands of many social non-reproductive castes of female hymenopterans have been adapted from reproductive organs to form defensive organs which secrete venom.…”

Section: Discussionmentioning

confidence: 99%

The Homeodomain Protein Ladybird Late Regulates Synthesis of Milk Proteins during Pregnancy in the Tsetse Fly (Glossina morsitans)

et al. 2014

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Regulation of tissue and development specific gene expression patterns underlies the functional specialization of organs in multi-cellular organisms. In the viviparous tsetse fly (Glossina), the female accessory gland is specialized to generate nutrients in the form of a milk-like secretion to support growth of intrauterine larva. Multiple milk protein genes are expressed specifically in the female accessory gland and are tightly linked with larval development. Disruption of milk protein synthesis deprives developing larvae of nutrients and results in extended larval development and/or in abortion. The ability to cause such a disruption could be utilized as a tsetse control strategy. Here we identify and delineate the regulatory sequence of a major milk protein gene (milk gland protein 1:mgp1) by utilizing a combination of molecular techniques in tsetse, Drosophila transgenics, transcriptomics and in silico sequence analyses. The function of this promoter is conserved between tsetse and Drosophila. In transgenic Drosophila the mgp1 promoter directs reporter gene expression in a tissue and stage specific manner orthologous to that of Glossina. Analysis of the minimal required regulatory region of mgp1, and the regulatory regions of other Glossina milk proteins identified putative homeodomain protein binding sites as the sole common feature. Annotation and expression analysis of Glossina homeodomain proteins identified ladybird late (lbl) as being accessory gland/fat body specific and differentially expressed between lactating/non-lactating flies. Knockdown of lbl in tsetse resulted in a significant reduction in transcript abundance of multiple milk protein genes and in a significant loss of fecundity. The role of Lbl in adult reproductive physiology is previously unknown. These results suggest that Lbl is part of a conserved reproductive regulatory system that could have implications beyond tsetse to other vector insects such as mosquitoes. This system is critical for tsetse fecundity and provides a potential target for development of a reproductive inhibitor.

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“…Such cells, in which the cytoplasm is confined to the periphery and houses a large nucleus basally, have already been described in insect ectodermic glands (Noirot and Quennedey,1974; Quennedey,1998), including those related to the reproductive system. Secretion may be released into the gland lumen through either small openings in the cuticular intima (Meola,1982; Marchini et al,2003; Marchini and Del Bene,2006) or efferent ducts composed of duct‐forming cells (Dallai et al,1988; Courrent et al,2008). The disposition of the secretory cells in relation to the lumen of the spermatheca of T. alacris indicates that they are Class 1 gland cells (Noirot and Quennedy,1974; Quennedey,1998, 2000; Courrent et al,2008).…”

Section: Discussionmentioning

confidence: 99%

Sperm storage by spermatodoses in the spermatheca of Trioza alacris (Flor, 1861) hemiptera, psylloidea, triozidae: A structural and ultrastructural study

Marchini

Bene

Viscuso

et al. 2011

Journal of Morphology

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Female insects generally store sperm received during mating in specific organs of their reproductive tract, i.e., the spermathecae, which keep the sperm alive for a long time until fertilization occurs. We investigated spermatheca morphology and ultrastructure in the psylloidean insect Trioza alacris (Flor,1861) in which spheroidal sperm packets that we refer to as 'spermatodoses' are found after mating. The ectoderm-derived epithelium of the sac-shaped spermatheca that has a proximal neck, consists of large secretory and flat cuticle-forming cells. Secretory cells are characterized by a wide extracellular cavity, bordered by microvilli, in which electron-dense secretion accumulates before discharge into the spermathecal lumen. The cuticle-forming cells produce the cuticular intima of the organ and a peculiar specialized apical structure, through which secretion flows into the lumen. At mating, the male transfers bundles of sperm cells embedded in seminal fluid into the spermathecal neck. Sperm cells proceed towards the spermathecal sac lumen, where they are progressively compacted and surrounded with an envelope that also encloses secretions of both male and female origin. We describe the formation of these sperm containing structures and document the contribution of the female secretion to spermatodose or female-determined spermatophore construction. We also discuss the choice of the term 'spermatodose' for T. alacris and suggest it be used to refer to sperm masses constructed in the female reproductive organs, at least when they involve the contribution of female secretion.

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The fine structure of colleterial glands in two cockroaches and three termites, including a detailed study of Cryptocercus punctulatus (Blattaria, Cryptocercidae) and Mastotermes darwiniensis (Isoptera, Mastotermitidae)

Cited by 26 publications

References 28 publications

Manual of praying mantis morphology, nomenclature, and practices (Insecta, Mantodea)

Manual of praying mantis morphology, nomenclature, and practices (Insecta, Mantodea)

The Homeodomain Protein Ladybird Late Regulates Synthesis of Milk Proteins during Pregnancy in the Tsetse Fly (Glossina morsitans)

Sperm storage by spermatodoses in the spermatheca of Trioza alacris (Flor, 1861) hemiptera, psylloidea, triozidae: A structural and ultrastructural study

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