Serotonin induces ovarian maturation in giant freshwater prawn broodstock, Macrobrachium rosenbergii de Man

Meeratana, Prasert; Withyachumnarnkul, Boonsirm; Damrongphol, Praneet; Wongprasert, Kanokphan; Suseangtham, Anchalee; Sobhon, Prasert

doi:10.1016/j.aquaculture.2006.06.010

Cited by 71 publications

(43 citation statements)

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“…In further studies, administration of 5-HT raised hemolymph Vg concentration 15-26 times from the control levels within 16days in ESA brood stock M. rosenbergii prawns (Chen et al, 2003). Recently, Meeratana and colleagues (Meeratana et al, 2006) reported that 5-HT-primed TG medium stimulates ovarian maturation and oocyte growth in M. rosenbergii. These studies indicate that 5-HT indirectly acts on ovary.…”

Section: Role Of Neurotransmitters In Reproductionmentioning

confidence: 99%

Reproductive regulators in decapod crustaceans: an overview

Nagaraju

2011

Journal of Experimental Biology

271

170

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SummaryControl of reproductive development in crustaceans requires neuropeptides, ecdysone and methyl farnesoate (MF). A major source of neuropeptides is the X-organ-sinus gland (XO-SG) complex located in the eyestalk ganglia of crustaceans. The other regulatory factors (either peptides or neuromodulators) are produced in the brain and thoracic ganglia (TG). Two other regulatory non-peptide compounds, the steroid ecdysone and the sesquiterpene MF, are produced by the Y-organs and the mandibular organs, respectively. In the current review, I have tried to recapitulate recent studies on the role of gonadal regulatory factors in regulating crustacean reproduction.Key words: crustaceans, reproduction, gonads, X-organ-sinus gland, peptides. THE JOURNAL OF EXPERIMENTAL BIOLOGY4 crustaceans, the testis contains 10-15 lobes each composed of many seminiferous tubules, whose shape changes according to the stage of spermatogenesis. Spermatogenesis starts in the undifferentiated seminiferous tubules (proacini) at the top of each lobe. Meiotic activity occurs in the acini that develop proacini somewhat proximally from the top of each lobe. In this stage, the lobules contain mostly primary spermatocytes. Differentiation of secondary spermatocytes and spermatids takes place in the seminiferous tubules, which lie in the center of each lobe. All these seminiferous tubules are filled with spermatocytes and spermatids surrounded by a layer of otheocytes of mesodermal origin. The hormonal control of spermatogenesis is not completely understood in crustaceans. There is information on MF as a reproductive hormone in males. The female reproductive systemThe reproductive system of female crustaceans consists of the paired ovaries, oviducts, gonophores and an external sperm reception area. The ovarian lobes are connected by a central bridge of ovarian tissue (Fig.1D). The ovarian lobes are symmetrically arranged and lie in the cephalothorax on the top of the stomach and hepatopancreas (HP). An oviduct arises laterally from each ovary at a point just beside the position of the heart. It extends ventrally and opens through a gonophore in the abdomen. In sexually receptive females, each pore is equipped with a large tuft of long setae, which apparently serve as a tube for the passage of ova. In the fully mature state, the shapes of ovarian limbs can be distinguished only with difficulty as the ovary fills the thoracic region of the body cavity completely.In the majority of female Malacostraca, oogonial proliferation and ovarian differentiation take place when the ovary is translucent to opaque white (previtellogenic ovary). During vitellogenesis the color of the ovary changes from pale yellow (vitellogenic stage I) to orange (vitellogenic stage II) and it then becomes brown (vitellogenic stage III) to dark brown prior to spawning. Maturation of the ovary also includes an increase in the size of the ovary as the oocytes proliferate and increase in diameter, due to yolk deposition. Role of neuropeptides in reproductionThe hormonal control o...

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Section: Role Of Neurotransmitters In Reproductionmentioning

confidence: 99%

Reproductive regulators in decapod crustaceans: an overview

Nagaraju

2011

Journal of Experimental Biology

271

170

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“…However, doses of 5-HT above 1 µg/g up to 50 µg/g did not cause any further increases in GSI. At the same time, regarding the injection of tissue medium, it was seen that culture medium of 5-HT-primed thoracic ganglion caused significant advancement of ovarian stage, both in terms of GSI and histological examination (with brain culture medium having some effect as well) (Meeratana et al 2006). Such research strongly indicates the presence of a vitellogenesis-stimulating factor in the thoracic ganglion, and perhaps the brain, the release of which is brought about by 5-HT.…”

Section: -1cmentioning

confidence: 62%

“…In some of the most recent work in this area, Meeratana et al (2006) injected 5-HT intramuscularly into adult female Mac. rosenbergii, or alternatively, 5-HT-primed culture medium of different tissues including brain, thoracic ganglion, muscle and eyestalk.…”

Section: -1cmentioning

confidence: 99%

Reproductive Mechanisms in Crustacea Focusing on Selected Prawn Species: Vitellogenin Structure, Processing and Synthetic Control

Wilder¹,

Okumura²,

Tsutsui³

2010

Aqua-BioSci. Monogr. (ABSM)

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Shrimp culture is a significant world-wide industry, with current production levels reaching over 3 million tons per year. The expansion of the industry has given rise to the problems of environmental deterioration due to intensive-scale culture, and the outbreak of disease. While many of these issues are now being sufficiently addressed, the establishment of sustainable seed production technology is an area that should be given continued attention. In this regard, it remains difficult to control reproduction under hatchery conditions for a large number of commercially-important species. At present, an understanding of reproductive mechanisms in Crustacea is not complete, although in recent years, a great deal of knowledge has accumulated on vitellogenin structure, processing, and synthetic site in a number of economically-important species. This monograph will cover the current status of research on vitellogenin in decapod crustaceans, especially prawns and shrimp, and discuss mechanisms of vitellogenin synthetic control, both demonstrated and postulated. The monograph will also present current knowledge of crustacean vitellogenin receptors, and cover related facets of reproductive development, such as mechansisms of cortical rod formation and the utilization of vitellin during embryogenesis. Finally, future directions for this research and potential applications to aquaculture will be discussed.

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“…A nivel mundial son varios los trabajos enfocados a buscar el control de la reproducción en crustáceos decápodos, mediante factores medioambientales (Daniels et al, 1994;Karplus et al, 2003), endocrinológicos (Vaca & Alfaro, 2000;Meeratana et al, 2006) y hormonales (Chen et al, 2003). No obstante, para evaluar la efectividad de cada uno de estos métodos, es necesario conocer completamente la dinámica del proceso de maduración ovárica e identificar los estados de diferenciación por los que atraviesan los ovocitos durante la gametogénesis.…”

Section: Introductionunclassified

Descripcion histologica y caracterizacion de los estados de madurez gonadal de hembras de Cryphiops caementarius (Molina, 1782) (Decapoda: Palaemonidae)

Moreno

Méndez

Meruane

et al. 2012

lajar

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RESUMEN.La extracción indiscriminada y alteraciones del medio natural, han puesto en peligro de extinción al único Palaemónido dulceacuícola de interés comercial, presente en aguas continentales chilenas. Aun cuando esta situación, ha despertado el interés en estudios que permitan su reproducción controlada en cautiverio, actualmente es escaso el conocimiento acerca de aspectos reproductivos básicos de esta especie. Dada su importancia, este trabajo describe y caracteriza el proceso completo de maduración gonadal en hembras de Cryphiops caementarius, en base a cambios en la morfología externa e interna del ovario. Hembras adultas extraídas del río Limarí, fueron disectadas y sus ovarios removidos y preparados para análisis histológicos. Tejido fibromuscular divide el tejido gonadal de cada lóbulo en sacos ováricos de forma semicónica (conos de maduración), al interior del los cuales se encuentran ovocitos en diferentes estados de desarrollo de acuerdo a observaciones microscópicas de tamaño, morfología y tinción con H-E, las células reproductoras femeninas se clasificaron en seis tipos, ovogonias (Ov), ovocitos previtelogénicos tempranos (O1), ovocitos previtelogénicos tardíos (O2), ovocitos vitelogénicos tempranos (O3), ovocitos vitelogénicos tardíos (O4) y ovocitos Maduros (OM). El ciclo de madurez gonadal se dividió en cinco estados según la cantidad y tipo de ovocitos presentes. Los estados 0 y I, corresponden a desovado y previtelogénesis. Los estados II y III a vitelogénesis temprana y vitelogénesis intermedia, mientras el estado IV corresponde a madurez avanzada. La presencia de ovogonias y ovocitos previtelogénicos junto a ovocitos completamente maduros en el estado de madurez avanzada, refleja la capacidad de esta especie de realizar ciclos consecutivos de madurez en intervalos cortos de tiempo. Palabras claves: Palaemonidae, Cryphiops caementarius, ciclo ovárico, madurez gonadal, ovocitos, Chile. Histological description and characterization of the ovarian cycle ofCryphiops caementarius (Molina, 1782) (Decapoda: Palaemonidae) ABSTRACT. Its indiscriminate extraction and alterations of its natural environment, has put in danger of extinction the only commercial freshwater Palemonid present in Chilean inland waters. Even though this situation has awakened interest in studies which allow its controlled reproduction in captivity, currently little is known regarding basic reproductive aspects of this species. Given its relevance, this work describes and characterizes the whole ovarian cycle of Cryphiops caementarius, based on changes in external and internal ovarian morphology. Adult C. caementarius females, obtained from Limarí River, were dissected and its ovaries removed and prepared for histological examinations. Fibromuscular tissue divides the ovarian tissue of each lobe into cone-shaped ovarian pouches (Maturation cones), each one containing various steps of oocytes according to the stages of ovarian development. Based on light microscopic observations of cells' sizes, morphology, and staining with H-...

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Serotonin induces ovarian maturation in giant freshwater prawn broodstock, Macrobrachium rosenbergii de Man

Cited by 71 publications

References 21 publications

Reproductive regulators in decapod crustaceans: an overview

Reproductive regulators in decapod crustaceans: an overview

Reproductive Mechanisms in Crustacea Focusing on Selected Prawn Species: Vitellogenin Structure, Processing and Synthetic Control

Descripcion histologica y caracterizacion de los estados de madurez gonadal de hembras de Cryphiops caementarius (Molina, 1782) (Decapoda: Palaemonidae)

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