Studies on the ovotestis of the slug Agriolimax reticulatus (Müller)
| ISSN: |
1432-0878
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| Keywords: |
Ultrastructure ; Cytochemistry ; Oocytes ; Molluscs ; Vitellogenesis ; Nucleoli
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| Source: |
Springer Online Journal Archives 1860-2000
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| Topics: |
Biology
Medicine
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| Notes: |
Summary The ovarian oocytes of Agriolimax reticulatus (Müller) have been studied by light and electron microscopy and electron cytochemistry. The development of the oocyte in the ovotestis may be divided into three stages. During Stage I the oocyte cytoplasm contains mainly ribosomes and also strands of endoplasmic reticulum, scattered mitochondria and Golgi systems. The nucleus contains both a paranucleolus and an eunucleolus. By Stage II the oocyte has enlarged, especially in a plane parallel to the basement membrane. In addition to the above mentioned organelles, the cytoplasm contains lipid, glycogen and early yolk platelets. During Stage III, the oocyte continues to enlarge, but mainly in a plane perpendicular to the basement membrane. A considerable degree of cytoplasmic differentiation has also taken place. The plasma membrane of the oocyte has become specialized with the appearance of a polysaccharide-rich glycocalyx, microvilli and pinocytotic tubules. Elsewhere, much of the background cytoplasm, containing Golgi-derived, polysaccharide and acid phosphatase-rich multivesiculate bodies, lipid and glycogen, is sequestered by smooth membranes and ultimately fuses with the growing yolk platelets. The nucleus contains an amphinucleolus, characteristic of many gastropods. The findings of this study are discussed in relation to results from other studies on oogenesis.
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| Type of Medium: |
Electronic Resource
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| URL: |
| _version_ | 1798297619795017729 |
|---|---|
| autor | Hill, R. S. Bowen, I. D. |
| autorsonst | Hill, R. S. Bowen, I. D. |
| book_url | http://dx.doi.org/10.1007/BF00224309 |
| datenlieferant | nat_lic_papers |
| hauptsatz | hsatz_simple |
| identnr | NLM205721117 |
| issn | 1432-0878 |
| journal_name | Cell & tissue research |
| materialart | 1 |
| notes | Summary The ovarian oocytes of Agriolimax reticulatus (Müller) have been studied by light and electron microscopy and electron cytochemistry. The development of the oocyte in the ovotestis may be divided into three stages. During Stage I the oocyte cytoplasm contains mainly ribosomes and also strands of endoplasmic reticulum, scattered mitochondria and Golgi systems. The nucleus contains both a paranucleolus and an eunucleolus. By Stage II the oocyte has enlarged, especially in a plane parallel to the basement membrane. In addition to the above mentioned organelles, the cytoplasm contains lipid, glycogen and early yolk platelets. During Stage III, the oocyte continues to enlarge, but mainly in a plane perpendicular to the basement membrane. A considerable degree of cytoplasmic differentiation has also taken place. The plasma membrane of the oocyte has become specialized with the appearance of a polysaccharide-rich glycocalyx, microvilli and pinocytotic tubules. Elsewhere, much of the background cytoplasm, containing Golgi-derived, polysaccharide and acid phosphatase-rich multivesiculate bodies, lipid and glycogen, is sequestered by smooth membranes and ultimately fuses with the growing yolk platelets. The nucleus contains an amphinucleolus, characteristic of many gastropods. The findings of this study are discussed in relation to results from other studies on oogenesis. |
| package_name | Springer |
| publikationsjahr_anzeige | 1976 |
| publikationsjahr_facette | 1976 |
| publikationsjahr_intervall | 8024:1975-1979 |
| publikationsjahr_sort | 1976 |
| publisher | Springer |
| reference | 173 (1976), S. 465-482 |
| schlagwort | Ultrastructure Cytochemistry Oocytes Molluscs Vitellogenesis Nucleoli |
| search_space | articles |
| shingle_author_1 | Hill, R. S. Bowen, I. D. |
| shingle_author_2 | Hill, R. S. Bowen, I. D. |
| shingle_author_3 | Hill, R. S. Bowen, I. D. |
| shingle_author_4 | Hill, R. S. Bowen, I. D. |
| shingle_catch_all_1 | Hill, R. S. Bowen, I. D. Studies on the ovotestis of the slug Agriolimax reticulatus (Müller) Ultrastructure Cytochemistry Oocytes Molluscs Vitellogenesis Nucleoli Ultrastructure Cytochemistry Oocytes Molluscs Vitellogenesis Nucleoli Summary The ovarian oocytes of Agriolimax reticulatus (Müller) have been studied by light and electron microscopy and electron cytochemistry. The development of the oocyte in the ovotestis may be divided into three stages. During Stage I the oocyte cytoplasm contains mainly ribosomes and also strands of endoplasmic reticulum, scattered mitochondria and Golgi systems. The nucleus contains both a paranucleolus and an eunucleolus. By Stage II the oocyte has enlarged, especially in a plane parallel to the basement membrane. In addition to the above mentioned organelles, the cytoplasm contains lipid, glycogen and early yolk platelets. During Stage III, the oocyte continues to enlarge, but mainly in a plane perpendicular to the basement membrane. A considerable degree of cytoplasmic differentiation has also taken place. The plasma membrane of the oocyte has become specialized with the appearance of a polysaccharide-rich glycocalyx, microvilli and pinocytotic tubules. Elsewhere, much of the background cytoplasm, containing Golgi-derived, polysaccharide and acid phosphatase-rich multivesiculate bodies, lipid and glycogen, is sequestered by smooth membranes and ultimately fuses with the growing yolk platelets. The nucleus contains an amphinucleolus, characteristic of many gastropods. The findings of this study are discussed in relation to results from other studies on oogenesis. 1432-0878 14320878 Springer |
| shingle_catch_all_2 | Hill, R. S. Bowen, I. D. Studies on the ovotestis of the slug Agriolimax reticulatus (Müller) Ultrastructure Cytochemistry Oocytes Molluscs Vitellogenesis Nucleoli Ultrastructure Cytochemistry Oocytes Molluscs Vitellogenesis Nucleoli Summary The ovarian oocytes of Agriolimax reticulatus (Müller) have been studied by light and electron microscopy and electron cytochemistry. The development of the oocyte in the ovotestis may be divided into three stages. During Stage I the oocyte cytoplasm contains mainly ribosomes and also strands of endoplasmic reticulum, scattered mitochondria and Golgi systems. The nucleus contains both a paranucleolus and an eunucleolus. By Stage II the oocyte has enlarged, especially in a plane parallel to the basement membrane. In addition to the above mentioned organelles, the cytoplasm contains lipid, glycogen and early yolk platelets. During Stage III, the oocyte continues to enlarge, but mainly in a plane perpendicular to the basement membrane. A considerable degree of cytoplasmic differentiation has also taken place. The plasma membrane of the oocyte has become specialized with the appearance of a polysaccharide-rich glycocalyx, microvilli and pinocytotic tubules. Elsewhere, much of the background cytoplasm, containing Golgi-derived, polysaccharide and acid phosphatase-rich multivesiculate bodies, lipid and glycogen, is sequestered by smooth membranes and ultimately fuses with the growing yolk platelets. The nucleus contains an amphinucleolus, characteristic of many gastropods. The findings of this study are discussed in relation to results from other studies on oogenesis. 1432-0878 14320878 Springer |
| shingle_catch_all_3 | Hill, R. S. Bowen, I. D. Studies on the ovotestis of the slug Agriolimax reticulatus (Müller) Ultrastructure Cytochemistry Oocytes Molluscs Vitellogenesis Nucleoli Ultrastructure Cytochemistry Oocytes Molluscs Vitellogenesis Nucleoli Summary The ovarian oocytes of Agriolimax reticulatus (Müller) have been studied by light and electron microscopy and electron cytochemistry. The development of the oocyte in the ovotestis may be divided into three stages. During Stage I the oocyte cytoplasm contains mainly ribosomes and also strands of endoplasmic reticulum, scattered mitochondria and Golgi systems. The nucleus contains both a paranucleolus and an eunucleolus. By Stage II the oocyte has enlarged, especially in a plane parallel to the basement membrane. In addition to the above mentioned organelles, the cytoplasm contains lipid, glycogen and early yolk platelets. During Stage III, the oocyte continues to enlarge, but mainly in a plane perpendicular to the basement membrane. A considerable degree of cytoplasmic differentiation has also taken place. The plasma membrane of the oocyte has become specialized with the appearance of a polysaccharide-rich glycocalyx, microvilli and pinocytotic tubules. Elsewhere, much of the background cytoplasm, containing Golgi-derived, polysaccharide and acid phosphatase-rich multivesiculate bodies, lipid and glycogen, is sequestered by smooth membranes and ultimately fuses with the growing yolk platelets. The nucleus contains an amphinucleolus, characteristic of many gastropods. The findings of this study are discussed in relation to results from other studies on oogenesis. 1432-0878 14320878 Springer |
| shingle_catch_all_4 | Hill, R. S. Bowen, I. D. Studies on the ovotestis of the slug Agriolimax reticulatus (Müller) Ultrastructure Cytochemistry Oocytes Molluscs Vitellogenesis Nucleoli Ultrastructure Cytochemistry Oocytes Molluscs Vitellogenesis Nucleoli Summary The ovarian oocytes of Agriolimax reticulatus (Müller) have been studied by light and electron microscopy and electron cytochemistry. The development of the oocyte in the ovotestis may be divided into three stages. During Stage I the oocyte cytoplasm contains mainly ribosomes and also strands of endoplasmic reticulum, scattered mitochondria and Golgi systems. The nucleus contains both a paranucleolus and an eunucleolus. By Stage II the oocyte has enlarged, especially in a plane parallel to the basement membrane. In addition to the above mentioned organelles, the cytoplasm contains lipid, glycogen and early yolk platelets. During Stage III, the oocyte continues to enlarge, but mainly in a plane perpendicular to the basement membrane. A considerable degree of cytoplasmic differentiation has also taken place. The plasma membrane of the oocyte has become specialized with the appearance of a polysaccharide-rich glycocalyx, microvilli and pinocytotic tubules. Elsewhere, much of the background cytoplasm, containing Golgi-derived, polysaccharide and acid phosphatase-rich multivesiculate bodies, lipid and glycogen, is sequestered by smooth membranes and ultimately fuses with the growing yolk platelets. The nucleus contains an amphinucleolus, characteristic of many gastropods. The findings of this study are discussed in relation to results from other studies on oogenesis. 1432-0878 14320878 Springer |
| shingle_title_1 | Studies on the ovotestis of the slug Agriolimax reticulatus (Müller) |
| shingle_title_2 | Studies on the ovotestis of the slug Agriolimax reticulatus (Müller) |
| shingle_title_3 | Studies on the ovotestis of the slug Agriolimax reticulatus (Müller) |
| shingle_title_4 | Studies on the ovotestis of the slug Agriolimax reticulatus (Müller) |
| sigel_instance_filter | dkfz geomar wilbert ipn albert fhp |
| source_archive | Springer Online Journal Archives 1860-2000 |
| timestamp | 2024-05-06T10:10:53.202Z |
| titel | Studies on the ovotestis of the slug Agriolimax reticulatus (Müller) |
| titel_suche | Studies on the ovotestis of the slug Agriolimax reticulatus (Müller) |
| topic | W WW-YZ |
| uid | nat_lic_papers_NLM205721117 |