In vitro fertilization of the rock shrimp, Rhynchocinetes typus (Decapoda, Caridea): a review

Dupré, Enrique; Barros, C.

doi:10.4067/s0716-97602011000200003

Cited by 15 publications

(6 citation statements)

References 22 publications

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“…In this species, the spike initiates the first contact with the oocyte and penetrates the oocyte. No reorientation of the spermatozoan is observed and the spike does not show cross‐striations (Dupré & Barros, , ).…”

Section: Discussionmentioning

confidence: 99%

New insights in the male anatomy, spermatophore formation, and sperm structure in Atyidae: The red cherry shrimp Neocaridina davidi

Tomás

Bento

Mutti

et al. 2019

Invertebrate Biology

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This study aims to analyze the functional anatomy of the male reproductive system in Neocaridina davidi, a very popular ornamental species of caridean shrimp. Mature males were cold‐anaesthetized and their reproductive systems were dissected for histological and histochemical analysis, while the spermatozoa and spermatophore wall ultrastructure were analyzed under transmission electron microscopy. The male reproductive system consisted of two coiled testes, which were continuous with the vasa deferentia. Testes were positioned on the dorsal side of the cephalothorax above the hepatopancreas, and comprised seminiferous tubules where spermatogenesis occurred. Each vas deferens (VD) was a long tube dorsolaterally positioned with respect to the hepatopancreas, and increased in diameter at the distal end. Three regions could be recognized in the VD: proximal, middle, and distal. The proximal region had a cylindrical epithelium with secretory cells. The middle region (or typhlosole) had a dorsal fold (or typhlosole) with a thick columnar epithelium and high secretory activity. The spermatophore was a continuous cord with three acellular layers, which were mainly characterized by the presence of neutral glycoconjugates and proteins. The sperm morphology was distinct from the inverted cup‐shaped spermatozoa observed in the majority of caridean shrimps. The spermatozoa in specimens of N. davidi were spherical in shape, with a cross‐striated, single, short spike, and arranged in clusters of three or four sperm cells. The composition of the spermatophore, and the arrangement and form of the spermatozoa, seem to be unique in comparison to other species of Caridea.

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Section: Discussionmentioning

confidence: 99%

New insights in the male anatomy, spermatophore formation, and sperm structure in Atyidae: The red cherry shrimp Neocaridina davidi

Tomás

Bento

Mutti

et al. 2019

Invertebrate Biology

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“…Nowadays, it is a consolidated acquisition that the fusion of the gametes represents the result of an ordered series of events whose first fundamental step is represented by the specific recognition between the two cells and their subsequent binding (Hirohashi et al, 2008); in several animal groups such as sea urchin (Dhume and Lennarz, 1995;Glabe et al, 1982;Rossignol and Lennarz, 1983), decapods (Dupr e and Barros, 2011;Dupr e et al, 2012), molluscs (Focarelli et al, 1988(Focarelli et al, , 1990, tunicates (Baginski et al, 1999;De Santis and Pinto, 1990;Honegger and Koyanagi, 2008;Rosati and De Santis, 1980;Rosati, 1985), amphibian (Del Pino and Cabada, 1987;Gualtieri and Andreuccetti, 1996;Maturi et al, 1998) and mammals (Clark, 2013;Jones et al, 1988;Miller and Ax, 1990;Snell and White, 1996;Wassarman and Litscher, 2001;Wassarman, 1987) the study of the interaction between the gametes has highlighted the existence of a common strategy based on high affinity and specificity of recognition and binding between specific glycoconjugates and receptors present on the gamete surfaces. However, it is not known whether in other animal groups the mechanisms of gametes interaction follow the same route or if they are based on alternative strategies.…”

Section: Introductionmentioning

confidence: 99%

Egg envelopes ofArmadillidium vulgare(Latreille, 1804) (Crustacea, Isopoda Oniscidea): Ultrastructure and lectins binding

Mazzei

Sinatra

Villaggio

et al. 2016

Microsc. Res. Tech.

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The ultrastructural study carried out on (a) oocytes of Armadillidium vulgare during vitellogenesis, (b) mature eggs taken from the ovaries during the parturial moult of the posterior half of the body, and (c) fertilized eggs collected within a few hours of their release into the brood pouch, has clearly demonstrated that before the fertilization the chorion is the only envelope present in the egg of oniscidean isopods. In the mature eggs, the chorion appears as a uniformly electron-dense lamina, about 0.4-0.5 µm thick, which does not show any specialized area. A second envelope, described by other authors as vitelline envelope, is formed above the oolemma only right after fertilization and appears separated from the chorion by a space full of liquid. The ways in which the genesis of this envelope is realized are not yet clear; it could be interpreted rather as a fertilization membrane. The investigations carried out with the aid of a battery of FITC-lectins have highlighted the presence at the chorion surface of unfertilized eggs of various saccharide residues distributed in uniform way. No significant change was observed in the pattern of lectins binding to the chorion of eggs taken from the brood pouch, thus demonstrating how, after the fertilization, no significant rearrangement in the distribution of saccharide residues present on the egg surface occurs in A. vulgare. The ways in which, therefore, the recognition, the binding and the entry of the peculiar sperm of oniscidean isopods into the egg occur, still remain all to be deciphered. Microsc. Res. Tech. 79:792-798, 2016. © 2016 Wiley Periodicals, Inc.

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“…5: five days pre-molt; 1-2: one or two days pre-molt; 2: two days post-molt. (Dupré & Barros, 2011). Figura 2.…”

Section: Resultsmentioning

confidence: 99%

Role of egg surface glycoconjugate in the fertilization of the rock shrimp Rhynchocinetes typus (Milne Edwards, 1837)

Dupré¹,

Gomez²,

G³

et al. 2012

lajar

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ABSTRACT. During first gamete interaction, oligosaccharides on the glycoproteins present in oocyte envelopes of the rock shrimp, Rhynchocinetes typus, play an important role in spermatozoon recognition prior to the onset of penetration. These oligosaccharides have terminal monosaccharides that may be recognized by means of specific lectins. A variety of marine species have monosaccharides on their oocyte envelopes, allowing them to interact with the spermatozoa. The number and location of the monosaccharides varies during oocyte maturation. However, this phenomenon has not been studied in shrimp. The present study evaluates the presence and location of monosaccharides on oocyte envelopes during maturation using seven specific lectins conjugated to FITC (GNL, LCA, Con-A BS-1, LTA, GLS-II,DBA); these recognize mannose (α 1-3) mannose, α-mannose, α-glucose, glucose, galactose, fucose, N-acetyl-glucosamine, and N-acetylgalactosamine, respectively. Participation of these carbohydrates in the fertilization process was determined through the insemination of fresh oocytes with spermatozoa previously incubated with the different monosaccharides that block the active sites of the spermatozoa, inhibiting fertilization. The results showed the presence of N-acetyl-glucosamine and mannose on the oocyte envelopes, indicating that these sugars could be the receptors during the first gamete interaction. The results also suggested that glucose could be a complementary receptor to N-acetyl-glucosamine and mannose since, despite the low concentration of glucose on the envelope, this sugar generated a high degree of fertilization inhibition. Keywords: gametes, oocyte recognition, sperm receptors, lectins, vitelline coat, chorion. El rol de los glicoconjugados de las cubiertas ovocitarias en la fecundación del camarón de roca Rhynchocinetes typus (Milne-Edwards, 1837)RESUMEN. Durante la primera interacción gamética, los oligosacaridos unidos a las glicoproteínas de las cubiertas ovocitarias del camarón de roca Rhynchocinetes typus tienen un importante rol en el reconocimiento del espermatozoide antes de iniciar la penetración. Estos oligosacáridos presentan en su zona terminal, monocacáridos que pueden ser reconocidos por lectinas específicas. Diversas especies marinas tienen monosacáridos en la cubierta externa de sus ovocitos que le permiten interactuar con los espermatozoides y su número y localización presenta cambios durante la maduración, sin embargo este fenómeno no ha sido estudiado en camarones. El presente estudio evalúa la presencia y localización de monosacáridos sobre la cubierta de los ovocitos durante su maduración usando siete lectinas específicas conjugadas con FITC (GNL, LCA , Con-A BS-1, LTA, GLS-II y DBA) las cuales reconocen manosa (α 1-3) manosa, α-manosa, α-glucosa, glucosa, galactosa, fucosa, N-acetil-glucosamina y N-acetilgalactosamina respectivamente. La participación de estos carbohidratos en el proceso de fecundación fue determinada mediante la inseminación de ovocitos frescos con espermatozoides incubados...

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In vitro fertilization of the rock shrimp, Rhynchocinetes typus (Decapoda, Caridea): a review

Cited by 15 publications

References 22 publications

New insights in the male anatomy, spermatophore formation, and sperm structure in Atyidae: The red cherry shrimp Neocaridina davidi

New insights in the male anatomy, spermatophore formation, and sperm structure in Atyidae: The red cherry shrimp Neocaridina davidi

Egg envelopes ofArmadillidium vulgare(Latreille, 1804) (Crustacea, Isopoda Oniscidea): Ultrastructure and lectins binding

Role of egg surface glycoconjugate in the fertilization of the rock shrimp Rhynchocinetes typus (Milne Edwards, 1837)

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