Morphometry of the digestive glands of terrestrial mollusk Cornu aspersum (Gastropoda, Helicidae)
Histological and histochemical techniques were used to study specifics of parenchyma and stroma in digestive gland of Cornu aspersum. The parenchyma had 28.8 digestive ducts/mm2 on average (CV = 11.2 %) round-to-oval, with average cross-section of 27700.9 µm2 (CV = 28.1 %). The duct area (7...
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| Видавець: | Publishing House "Akademperiodyka" of the National Academy of Sciences of Ukraine |
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| Дата: | 2020 |
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| Формат: | Стаття |
| Мова: | English |
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Publishing House "Akademperiodyka" of the National Academy of Sciences of Ukraine
2020
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zoodiv-article-192023-03-22T18:55:59Z Morphometry of the digestive glands of terrestrial mollusk Cornu aspersum (Gastropoda, Helicidae) Tybinka, A. M. Zaitsev, O. O. Zakrevska, M. V. Blishch, H. I. Shchebentovska, O. M. gastropod mollusks digestive gland digestive ducts Histological and histochemical techniques were used to study specifics of parenchyma and stroma in digestive gland of Cornu aspersum. The parenchyma had 28.8 digestive ducts/mm2 on average (CV = 11.2 %) round-to-oval, with average cross-section of 27700.9 µm2 (CV = 28.1 %). The duct area (79.8 % of parenchyma) and the area of inter-duct connective tissue (20.2 % of parenchyma) were in ratio 4 : 1. The gland completely lacked elastic fibers. The muscle elements between the ducts were of different shape and arrangement, on average 59.7 µm long (CV = 42.3 %) and 1.41 µm wide (CV = 63.2 %). The gland’s capsule was formed by three layers: epithelial, muscular, and the layer of collagen fibers. More than 60 % of the capsule’s thickness belonged to the muscular layer. The proportion of calcium cells in the digestive duct wall was 15.5 % (CV = 23.5 %). Cells of digestive ducts contained a lot of vacuoles with brown granules (336.8 per 1 mm2, CV = 36.1 %). The vacuole area was 2.2 % of all area of digestive gland (CV = 15.8 %). The uneven location of muscle elements and brown granules in the glandular parenchyma indicated the functional features of the individual parts of the digestive gland. Publishing House "Akademperiodyka" of the National Academy of Sciences of Ukraine 2020-02-26 Article Article application/pdf https://ojs.akademperiodyka.org.ua/index.php/Zoodiversity/article/view/19 10.15407/zoo2020.01.075 Zoodiversity; Vol. 54 No. 1 (2020): Zoodiversity Zoodiversity (Vestnik Zoologii); Том 54 № 1 (2020): Zoodiversity 2707-7268 2707-725X 10.15407/zoo2020.01 en https://ojs.akademperiodyka.org.ua/index.php/Zoodiversity/article/view/19/10 Copyright (c) 2020 Institute of Zoology https://creativecommons.org/licenses/by-nc-nd/4.0 |
| institution |
Journal Zoodiversity |
| collection |
OJS |
| language |
English |
| topic |
gastropod mollusks digestive gland digestive ducts |
| spellingShingle |
gastropod mollusks digestive gland digestive ducts Tybinka, A. M. Zaitsev, O. O. Zakrevska, M. V. Blishch, H. I. Shchebentovska, O. M. Morphometry of the digestive glands of terrestrial mollusk Cornu aspersum (Gastropoda, Helicidae) |
| topic_facet |
gastropod mollusks digestive gland digestive ducts |
| format |
Article |
| author |
Tybinka, A. M. Zaitsev, O. O. Zakrevska, M. V. Blishch, H. I. Shchebentovska, O. M. |
| author_facet |
Tybinka, A. M. Zaitsev, O. O. Zakrevska, M. V. Blishch, H. I. Shchebentovska, O. M. |
| author_sort |
Tybinka, A. M. |
| title |
Morphometry of the digestive glands of terrestrial mollusk Cornu aspersum (Gastropoda, Helicidae) |
| title_short |
Morphometry of the digestive glands of terrestrial mollusk Cornu aspersum (Gastropoda, Helicidae) |
| title_full |
Morphometry of the digestive glands of terrestrial mollusk Cornu aspersum (Gastropoda, Helicidae) |
| title_fullStr |
Morphometry of the digestive glands of terrestrial mollusk Cornu aspersum (Gastropoda, Helicidae) |
| title_full_unstemmed |
Morphometry of the digestive glands of terrestrial mollusk Cornu aspersum (Gastropoda, Helicidae) |
| title_sort |
morphometry of the digestive glands of terrestrial mollusk cornu aspersum (gastropoda, helicidae) |
| description |
Histological and histochemical techniques were used to study specifics of parenchyma and stroma in digestive gland of Cornu aspersum. The parenchyma had 28.8 digestive ducts/mm2 on average (CV = 11.2 %) round-to-oval, with average cross-section of 27700.9 µm2 (CV = 28.1 %). The duct area (79.8 % of parenchyma) and the area of inter-duct connective tissue (20.2 % of parenchyma) were in ratio 4 : 1. The gland completely lacked elastic fibers. The muscle elements between the ducts were of different shape and arrangement, on average 59.7 µm long (CV = 42.3 %) and 1.41 µm wide (CV = 63.2 %). The gland’s capsule was formed by three layers: epithelial, muscular, and the layer of collagen fibers. More than 60 % of the capsule’s thickness belonged to the muscular layer. The proportion of calcium cells in the digestive duct wall was 15.5 % (CV = 23.5 %). Cells of digestive ducts contained a lot of vacuoles with brown granules (336.8 per 1 mm2, CV = 36.1 %). The vacuole area was 2.2 % of all area of digestive gland (CV = 15.8 %). The uneven location of muscle elements and brown granules in the glandular parenchyma indicated the functional features of the individual parts of the digestive gland. |
| publisher |
Publishing House "Akademperiodyka" of the National Academy of Sciences of Ukraine |
| publishDate |
2020 |
| url |
https://ojs.akademperiodyka.org.ua/index.php/Zoodiversity/article/view/19 |
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| first_indexed |
2023-04-04T18:53:22Z |
| last_indexed |
2023-04-04T18:53:22Z |
| _version_ |
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