Effet de l'injection d'une gonadotropine humaine sur la synthèse et la libération de la vitellogénine par le tissu adipeux du Crustacé isopode marin Idotea balthica basteri Audouin

Souty, Catherine; Picaud, Jean-Louis

doi:10.1016/0016-6480(84)90156-4

Cited by 21 publications

(6 citation statements)

References 4 publications

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“…However, their physiological functions have not yet been elucidated. The triggering of vitellogenesis by gonadotrophic hormones allows envisaging the existence of a steroid relay as in vertebrates (Bomirski & Klek-Kawinska 1976;Zukowska-Arendaczyck 1981;Souty & Picaud 1984).…”

Section: Discussionmentioning

confidence: 99%

Influence of squid extracts on the triggering of secondary vitellogenesis in Penaeus vannamei

Mendoza¹,

Revol²,

Fauvel³

et al. 1997

Aquaculture Nutrition

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A series of five experiments were carried out to find an alternative to eyestalk ablation for inducing and controlling vitellogenesis in penaeid shrimps. Several extracts from squid were tested as supplements to a basal diet. Polar components of hydro‐alcohol (ethanol/dicloromethane/water, 2:2:1:8) soluble and lipid squid fractions (Bligh & Dyer), when incorporated in formulated feed at low doses, trigger secondary vitellogenesis in 15–35 g female Penaeus vannamei, showing maturations of the same order of magnitude as the eyestalk‐ablated controls. Achievement of vitellogenesis was estimated by a homologous ELISA‐vitellogenin test. Even though the nature of the active molecules was not completely elucidated, the results obtained indicate that they may probably be steroid‐like molecules of cephalopods, acting in a heterologous way.

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Section: Discussionmentioning

confidence: 99%

Influence of squid extracts on the triggering of secondary vitellogenesis in Penaeus vannamei

Mendoza¹,

Revol²,

Fauvel³

et al. 1997

Aquaculture Nutrition

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“…An insulinlike immunoreactive chemical was found in the mussel Mytilus edulis [13], while a human gonadotropin-like material was described in the crab Ovalipes ocellatus. For example, human chorionic gonadotropin stimulates oogenesis in the brown shrimp Crangon crangon and vitellogenin synthesis by the fat body in the isopod Idotea balthica [16,17]. Crustacean gonads possess steroids identified in vertebrates and the enzymatic capacity to synthesize vertebrate sex steroids [15].…”

Section: Introductionmentioning

confidence: 99%

“…Crustacean gonads possess steroids identified in vertebrates and the enzymatic capacity to synthesize vertebrate sex steroids [15]. For example, human chorionic gonadotropin stimulates oogenesis in the brown shrimp Crangon crangon and vitellogenin synthesis by the fat body in the isopod Idotea balthica [16,17].…”

Section: Introductionmentioning

confidence: 99%

Effects of vertebrate hormones on development and sex determination in Daphnia magna

Kashian

Dodson

2004

Environmental Toxicology and Chemistry

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Daphnia (Crustacea) are extensively used as model organisms in ecotoxicology; however, little is known regarding their endocrine system. This study examines Daphnia vulnerability to vertebrate hormones. Twelve natural or synthetic vertebrate hormones were screened for activity on developmental and reproductive processes in Daphnia magna. Natural hormones tested included: beta-estradiol, gonadotropin, hydrocortisone, insulin, melatonin, progesterone, somatostatin, testosterone, and thyroxine at concentrations ranging from 1 to 100 microg/L. Synthetic hormones tested included diethylstilbestrol (estrogenic), R-1881 (androgen), and ICI-182,780 (antiestrogen); all hormones were screened with a 6-d assay. Additionally, progesterone, insulin, testosterone, and thyroxine were screened for 25 d. Diethylstilbestrol decreased D. magna growth rate while thyroxine increased it. Short-term testosterone exposure reduced D. magna fecundity; however, long-term exposure did not, potentially indicating testosterone hydroxylation with long-term exposure. Hormones commonly considered sex-hormones (estrogens and androgens) in vertebrates do not appear to control sexual differentiation in D. magna; however, several vertebrate hormones do affect reproduction and development in D. magna making D. magna a potentially useful tool in monitoring for the presence of these hormones or compounds that mimic them.

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“…Some crustaceans rely solely on the ovary to complete vitellogenesis (Penaeus japonicas, Yano and Chinzei, 1987). Other may use the fat body as a primary source of yolk (Amphipods, Isopods) as is the case with most insects (Bowner, 1986;Charniaux-Cotton, 1978;Gohar et al, 1984;Souty and Picaud, 1984). The hepatopancreas and ovary are common sites for yolk biosynthesis several penaeid shrimp (Penaeus vannamei, Penaeus semisulcatus, Penaeus monodon, Parapenaeus longirostris, Browdy et al, 1990;Chen, 1993, 1994;Quackenbush, 1989a, b;Quintio et al, 1990;Tom et al, 1992).…”

Section: Introductionmentioning

confidence: 99%

Yolk Synthesis in the Marine Shrimp,Penaeus vannamei1

Quackenbush

2001

American Zoologist

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Effet de l'injection d'une gonadotropine humaine sur la synthèse et la libération de la vitellogénine par le tissu adipeux du Crustacé isopode marin Idotea balthica basteri Audouin

Cited by 21 publications

References 4 publications

Influence of squid extracts on the triggering of secondary vitellogenesis in Penaeus vannamei

Influence of squid extracts on the triggering of secondary vitellogenesis in Penaeus vannamei

Effects of vertebrate hormones on development and sex determination in Daphnia magna

Yolk Synthesis in the Marine Shrimp,Penaeus vannamei1

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