Dynamics of oogenesis in ghost shrimp Callichirus major (Crustacea: Axiidea): a morphofunctional and histochemical study
Callichirus major, popularly known as ghost shrimp, is a species of great importance in the fishing industry, because of its use as live bait. This study aimed to describe the different stages of the developing ovaries in C. major. Shrimps were collected along the Corujão beach, Piuma, Brazil (20°50...
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2017
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00651281_v119_n8_p769_Souza http://hdl.handle.net/20.500.12110/paper_00651281_v119_n8_p769_Souza |
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paper:paper_00651281_v119_n8_p769_Souza2023-06-08T15:05:53Z Dynamics of oogenesis in ghost shrimp Callichirus major (Crustacea: Axiidea): a morphofunctional and histochemical study Ghost shrimp Histochemistry Oogenesis Ovary Reproduction cell protein polysaccharide animal cell animal structures animal tissue Article Brazil Callichirus major cell nucleus cell size cell structure cell volume color connective tissue controlled study cytoplasm egg yolk female germ cell histochemistry histology nonhuman nutrient oocyte oocyte development oogonium ovary ovary development ovary follicle shrimp somatic cell vitellogenesis animal Crustacea cytology metabolism oocyte development physiology Animals Crustacea Female Oocytes Oogenesis Ovary Vitellogenesis Callichirus major, popularly known as ghost shrimp, is a species of great importance in the fishing industry, because of its use as live bait. This study aimed to describe the different stages of the developing ovaries in C. major. Shrimps were collected along the Corujão beach, Piuma, Brazil (20°50'41.6“S 40°44'15.7“W), and the gonads were dissected for histological and histochemical analysis. The ovary consists of two elongated filaments covered by a connective tissue that divides the organ into lobules, where somatic and germ cells are found. It was possible to classify five types of germ cells: Oogonia (Oog), previtellogenic oocyte (Oc1), early vitellogenic oocyte (Oc2), late vitellogenic oocyte (Oc3) and mature oocyte (Oc4) based on their vitellogenic stage, cytoplasmic, nuclear and morphometric characteristics. The histochemical analysis demonstrated an intense reaction for proteins and polysaccharides in peripheral cytoplasm of Oc3 comparing to others cell types. According to size, volume, color intensity and distribution of oocyte types the gonads were classified into: immature, developing, developed and spent, being in females at this last stage, observed empty follicles and oocytes in reabsorption process. During oogenesis was observed a gradual increase in cytoplasmic acidophilia due to accumulation of yolk granules and the intense histochemical reaction in periphery of Oc3, which indicate the beginning of an extravitellogenic source of nutrients. Based on the microscopic analysis of the vitellogenesis, shrimp C. major showed the initial short phase of oocyte growth following with a fast vitellogenic cycle. © 2017 Elsevier GmbH 2017 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00651281_v119_n8_p769_Souza http://hdl.handle.net/20.500.12110/paper_00651281_v119_n8_p769_Souza |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Ghost shrimp Histochemistry Oogenesis Ovary Reproduction cell protein polysaccharide animal cell animal structures animal tissue Article Brazil Callichirus major cell nucleus cell size cell structure cell volume color connective tissue controlled study cytoplasm egg yolk female germ cell histochemistry histology nonhuman nutrient oocyte oocyte development oogonium ovary ovary development ovary follicle shrimp somatic cell vitellogenesis animal Crustacea cytology metabolism oocyte development physiology Animals Crustacea Female Oocytes Oogenesis Ovary Vitellogenesis |
| spellingShingle |
Ghost shrimp Histochemistry Oogenesis Ovary Reproduction cell protein polysaccharide animal cell animal structures animal tissue Article Brazil Callichirus major cell nucleus cell size cell structure cell volume color connective tissue controlled study cytoplasm egg yolk female germ cell histochemistry histology nonhuman nutrient oocyte oocyte development oogonium ovary ovary development ovary follicle shrimp somatic cell vitellogenesis animal Crustacea cytology metabolism oocyte development physiology Animals Crustacea Female Oocytes Oogenesis Ovary Vitellogenesis Dynamics of oogenesis in ghost shrimp Callichirus major (Crustacea: Axiidea): a morphofunctional and histochemical study |
| topic_facet |
Ghost shrimp Histochemistry Oogenesis Ovary Reproduction cell protein polysaccharide animal cell animal structures animal tissue Article Brazil Callichirus major cell nucleus cell size cell structure cell volume color connective tissue controlled study cytoplasm egg yolk female germ cell histochemistry histology nonhuman nutrient oocyte oocyte development oogonium ovary ovary development ovary follicle shrimp somatic cell vitellogenesis animal Crustacea cytology metabolism oocyte development physiology Animals Crustacea Female Oocytes Oogenesis Ovary Vitellogenesis |
| description |
Callichirus major, popularly known as ghost shrimp, is a species of great importance in the fishing industry, because of its use as live bait. This study aimed to describe the different stages of the developing ovaries in C. major. Shrimps were collected along the Corujão beach, Piuma, Brazil (20°50'41.6“S 40°44'15.7“W), and the gonads were dissected for histological and histochemical analysis. The ovary consists of two elongated filaments covered by a connective tissue that divides the organ into lobules, where somatic and germ cells are found. It was possible to classify five types of germ cells: Oogonia (Oog), previtellogenic oocyte (Oc1), early vitellogenic oocyte (Oc2), late vitellogenic oocyte (Oc3) and mature oocyte (Oc4) based on their vitellogenic stage, cytoplasmic, nuclear and morphometric characteristics. The histochemical analysis demonstrated an intense reaction for proteins and polysaccharides in peripheral cytoplasm of Oc3 comparing to others cell types. According to size, volume, color intensity and distribution of oocyte types the gonads were classified into: immature, developing, developed and spent, being in females at this last stage, observed empty follicles and oocytes in reabsorption process. During oogenesis was observed a gradual increase in cytoplasmic acidophilia due to accumulation of yolk granules and the intense histochemical reaction in periphery of Oc3, which indicate the beginning of an extravitellogenic source of nutrients. Based on the microscopic analysis of the vitellogenesis, shrimp C. major showed the initial short phase of oocyte growth following with a fast vitellogenic cycle. © 2017 Elsevier GmbH |
| title |
Dynamics of oogenesis in ghost shrimp Callichirus major (Crustacea: Axiidea): a morphofunctional and histochemical study |
| title_short |
Dynamics of oogenesis in ghost shrimp Callichirus major (Crustacea: Axiidea): a morphofunctional and histochemical study |
| title_full |
Dynamics of oogenesis in ghost shrimp Callichirus major (Crustacea: Axiidea): a morphofunctional and histochemical study |
| title_fullStr |
Dynamics of oogenesis in ghost shrimp Callichirus major (Crustacea: Axiidea): a morphofunctional and histochemical study |
| title_full_unstemmed |
Dynamics of oogenesis in ghost shrimp Callichirus major (Crustacea: Axiidea): a morphofunctional and histochemical study |
| title_sort |
dynamics of oogenesis in ghost shrimp callichirus major (crustacea: axiidea): a morphofunctional and histochemical study |
| publishDate |
2017 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00651281_v119_n8_p769_Souza http://hdl.handle.net/20.500.12110/paper_00651281_v119_n8_p769_Souza |
| _version_ |
1768544903033257984 |