Tegumental glands in the paragnaths of <i>Palaemon serratus</i> (Crustacea: Natantia)

Alexander, C. G.

doi:10.1017/s0025315400049109

Cited by 15 publications

(13 citation statements)

References 19 publications

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“…from the coxa, but mainly in the basis and the merus, in pereiopods 3 and 4. We observed strong parallels between the corophioid glands and types of rosette glands found elsewhere in the Crustacea (Alexander, 1989;Talbot and Demers, 1993;Dworschak, 1998). Rosette glands are ubiquitous beneath the cuticle of decapods (Johnson and Talbot, 1987), in marine callianassids employed for the function of burrow lining (Dworschak, 1998), in amphipods (Shyamasundari, 1978;Schmitz, 1992) and tanaids (Bird and Holdich, 1985), while lobed tegumental glands have been reported exclusively in terrestrial isopods (Gorvett, 1951;Wägele, 1992;Talbot and Demers, 1993).…”

Section: Discussionsupporting

confidence: 72%

Spinning a Marine Silk for the Purpose of Tube-Building

Kronenberger

Moore

Halcrow

et al. 2012

Journal of Crustacean Biology

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A B S T R A C TAmphipod silk is a fibrous, self-secreted, adhesive substance employed in tube-building by amphipod species within the Corophiidea, Ampeliscoidea and Aetiopedidea. In the present study we provide a detailed characterisation of a novel, marine-based silk production system situated in pereiopods 3 and 4 in the corophioid Crassicorophium bonellii and the aorid Lembos websteri. The silk material is a mixture of protein and mucopolysaccharides. Ultrastructural and histological analyses revealed that silk in both species is produced in several rosette-type glands, presumed to be of two different types. These glands are distributed among all limb articles apart from the coxa but mainly in the basis and merus of pereiopods 3 and 4. Secretion commences in the basis and a thread-like secretion product leaves the glandular pereiopod through a cuticular pore near the dactylar tip. The silk's physical and chemical properties most likely change while moving through the dactylar duct, which subdivides into several small ductules and terminates in a spindle-shaped chamber. This chamber, which communicates with the exterior, may be considered a silk reservoir in which the silk appears fibrous. For the first time an independently evolved, marine arthropod silk processing and secretion system is described.

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Section: Discussionsupporting

confidence: 72%

Spinning a Marine Silk for the Purpose of Tube-Building

Kronenberger

Moore

Halcrow

et al. 2012

Journal of Crustacean Biology

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“…Numerous types of tegumental glands associate with the crustacean hypodermis and exoskeleton (Yonge 1932;Mauchline 1977;Johnson and Talbot 1987;Alexander 1989;Talbot and Demers 1993;Ikeda et al 2004). Our sections contained other tegumental glands, but even when such glands were detected on annuli of the mature zone of the olfactory organ, they lacked OET-03 immunoreactivity (Fig.…”

Section: Resultsmentioning

confidence: 99%

Olfactory specific chymotrypsin-like serine protease from the aesthetasc tegumental gland of the lobster, Homarus americanus

2005

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Numerous proteases and protease inhibitors are expressed in the lobster olfactory organ. One of these proteases, olfactory enriched transcript 03 (OET-03), is particularly interesting because its mRNA is expressed only in one cell type of the olfactory organ of the American lobster, Homarus americanus. We have obtained a full-length cDNA clone of OET-03. The predicted amino acid sequence is equally divided between a novel N-terminal domain and a conserved serine protease catalytic domain at the C-terminus. Heterologous expression in HEK293 cells allowed protease assays demonstrating that OET-03 cleaved a specific serine protease substrate, N-alpha benzoyl-L-arginine p-nitroanilide, but did not cleave a substrate of metalloproteases and cysteine proteases. OET-03 protease activity was significantly inhibited by the chymotrypsin-like protease inhibitor, tosyl-L-phenylalanine chloromethyl ketone, but not by the general protease inhibitor, phenylmethylsulfonyl fluoride. Immunoreactivity for OET-03 was detected only in the cells previously shown to contain OET-03 mRNA. The cytoplasm of these cells was filled with enlarged smooth endoplasmic reticulum (a characteristic of secretory cells) that appeared to expand into large electron-translucent areas at the ventral end of the cell. The ventral ends of these secretory cells were apposed to phalloidin-labeled triangular structures reminiscent of the beginnings of the ducts of crustacean tegumental glands. This putative gland was found only in association with the aesthetasc sensory units of the olfactory organ, hence the name, aesthetasc tegumental gland.

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“…Tegumental glands derived from epidermal cells have been observed in a variety of tissues of the adult specimens of other decapod crustaceans (Herrick, 1895;Yonge, 1937;Doughtie and Rao, 1982;Johnson and Talbot, 1987;Alexander, 1989). The grass shrimp Palaemonetes pugio possesses two types of rosette gland: types A and B (Doughtie and Rao, 1982).…”

Section: Comparison Of the Rosette Glands Of Sesarma Haematocheir Witmentioning

confidence: 99%

“…Exocrine glands called "tegumental glands" are widely distributed beneath the integument of a number of crustaceans and vary in morphology and distribution among species (Yonge, 1932;Mauchline, 1977;Alexander, 1989;Talbot and Demers, 1993). The tegumental glands of the copepod Centropages typicus, for example, are distributed in the mouthparts and show a unicellular structure (Arnaud et al, 1988).…”

mentioning

confidence: 99%

“…It is commonly characterized by three features: 1) radially arranged secretory cells; 2) a central cell at the center of the gland; and 3) a canal cell forming a duct (Herrick, 1895;Yonge, 1932;Gorvett, 1946;Felgenhauer, 1992;Talbot and Demers, 1993). The rosette glands are found in the exopodite of the pleopod of the female lobster Homarus americanus (Herrick, 1895;Johnson and Talbot, 1987), in the endopodite of the female lobster Homarus vulgaris (Yonge, 1937), in the gills of adult specimens of the grass shrimp, Palaemonetes pugio (Doughtie and Rao, 1982), and in the paragnaths of the shrimp Palaemon serratus (Alexander, 1989). Doughtie and Rao (1982) discriminated between two types of rosette glands (A and B) in the gill axis of the grass shrimp Palaemonetes pugio.…”

mentioning

confidence: 99%

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A pair of rosette glands in the embryo and zoeal larva of an estuarine crab Sesarma haematocheir, and classification of the tegumental glands in the embryos of other crabs

Ikeda

Hirano

Saigusa

2003

Journal of Morphology

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A pair of rosette glands (one of the tegumental glands in crustaceans) is present at the root of the dorsal spine of the thorax in mature embryos of the estuarine crab Sesarma haematocheir. Each rosette gland is spherical, 45-50 microm in diameter. This gland consists of three types of cells: 18-20 secretory cells, one central cell, and one canal cell. The secretory cells are further classified into two types on the basis of the morphology of secretory granules. There are 17-19 a cells, and only one b cell per rosette gland. An a cell contains spherical secretory granules of 2-3 microm in diameter. The granules are filled with highly electron-dense materials near the nucleus but have lower electron-density near the central cell. The secretory granules contained in the b cell have an irregular shape and are 1-1.5 microm in diameter. The density of the materials in the granules is uniform throughout the cytoplasm. The secretory granules contained in both the a and b cells are produced by the rough endoplasmic reticulum. Materials in the granules are exocytotically discharged into the secretory apparatus inside the secretory cell, sent to the extracellular channels in the central cell, and secreted through the canal cell. The rosette gland can be distinguished from the epidermal cells 2 weeks after egg-laying and the gland matures just before hatching. Materials produced by this gland are secreted after hatching and secretion continues through five stages of zoeal larvae. These rosette glands were never found in the megalopal larva. Rosette glands are found in the embryos of Sesarma spp. and Uca spp. In other crabs, tegumental glands are also found at the same position as in the embryo of S. haematocheir, but the fine structure of their glands is largely different from that of the rosette gland. On the basis of the morphology of secretory cells (a-g cell types), the tegumental glands of a variety of crab embryos can be classified into four types, including rosette glands (type I-IV). The function of these tegumental glands is not yet known, but different types of the gland seem to reflect the phylogeny of the crabs rather than differences of habitat.

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Tegumental glands in the paragnaths of Palaemon serratus (Crustacea: Natantia)

Cited by 15 publications

References 19 publications

Spinning a Marine Silk for the Purpose of Tube-Building

Spinning a Marine Silk for the Purpose of Tube-Building

Olfactory specific chymotrypsin-like serine protease from the aesthetasc tegumental gland of the lobster, Homarus americanus

A pair of rosette glands in the embryo and zoeal larva of an estuarine crab Sesarma haematocheir, and classification of the tegumental glands in the embryos of other crabs

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