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      Obtención de una fracción con actividad gonadotrópica de la hipófisis de la tilapia Oreochromis niloticus (Osteichytes: Cichlidae)

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          Abstract

          Se aisló la hormona gonadotrópica a partir de hipófisis de la tilapia, por medio de cromatografía en Sephadex G-100. Se comprobó esto al observarse una banda por medio de electroforesis en geles de poliacrilamida. Una fracción presentó un patrón de movilidad electroforética similar al de la hormona folículo estimulante de mamíferos y su peso fue calculado en 32 000 Da. Posteriormente se comprobó que la molécula contenida en dicha fracción poseía actividad biológica por medio de un bioensayo con carpas machos y hembras, que presentaron un mayor desarrollo gonadal en comparación con gónadas de peces tratados con hormona luteinizante de mamífero, gonadolac y del grupo control.

          Translated abstract

          Gonadothropic was isolated from pituitary of tilapia through out Sephadex G-100 chromatography and posterior comprobation by electrophoretic poliacrilamide gel. One fraction had similar electrophoretic mobility to follicle-stimulating hormone, and its molecular weight was calculated as 32 000 Da. Biological activity of the molecule on that fraction was tested through a bioassay with juvenile male and female carps, which gonadal development was more advanced compared with the gonadal development of the fish that were treated with luteinizing hormone of mammals, gonadolac and control group.

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          Most cited references18

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          The effects of partially purified salmon pituitary gonadotropin on spermatogenesis, vitellogenesis, and ovulation in hypophysectomized goldfish (Carassius auratus)

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            Studies on two types of gonadotropins from both salmon and carp pituitaries

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              Manual histologic staining methods of the Armed Forces

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Journal
                hbio
                Hidrobiológica
                Hidrobiológica
                UAM, Unidad Iztapalapa,
                0188-8897
                2000
                : 10
                : 2
                : 79-84
                Affiliations
                [1 ] Universidad Nacional Autónoma de México México
                Article
                S0188-88972000000200001
                b238ce5d-0269-434e-b204-f25b34334595

                This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

                History
                Categories
                Marine & Freshwater Biology

                Ecology
                Hormonas gonadotropicas,Oreochromis,ovogénesis,espermatogénesis,ovario,testículo,Gonadotrophic hormones,oogenesis,spermatogenesis,ovary,testis

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