Gill Ultrastructure of the Spiny Top Shell, Batillus cornutus (Gastropoda: Turbinidae)

Abstract

Gill morphology and ultrastructure of the spiny top shell, Batillus cornutus were described using light and electron microscopy (SEM and TEM). The spiny top shell, Batillus cornutus has bipectinate gill. The epithelial layer of gill filament was simple and composed of columnar epithelium, ciliated cell, mitochondria-rich cell and secretory cell. Microvilli were well-developed on the free surface of columnar epithelial cell. The epithelial cells are connected to the neighboring cells with intercelluar junctions at the apico-lateral surface. The cilia and microvilli were commonly observed on the free surface of ciliated cell. Tubular mitochondria appeared in the apical cytoplasm, and connected ciliary rootlet. Mitochondria-rich cells contained a oval-shaped nucleus in the basal area. And majority of cytoplasm was occupied by well-developed mitochondria. Result of AB-PAS (pH 2.5) and AF-AB reaction showed that secretory cells contained mainly acidic carboxylated mucosubstances. Secretory cells are unicellular glands and can be divided into four types (A, B, C and D) depending on the cell shape and ultrastructure of secretory granules.

Reproductive Cycle and Sexual Group Maturity of Buccinum osagawai (Neogastropoda: Buccinidae)

“…Most gastropods do not have sexual dimorphism, but there are species in which males and females can be distinguished by gonadal color at maturity. For example, the gonads of Batillus cornutus (Turbinidae) [17], Haliotis discus hannai (Haliotidae) [14], and Haliotis gigantea [15] are dark green in females and white-yellow in males. For Neptunea arthritica (Buccinidae), the testis is reddish brown and the ovary is white-yellow [18].…”

“…The gonadal structure of gastropods differs according to taxon, and histological information of the ovary is very important for interpretation of the oocyte development pattern and yolk accumulation mechanism. In Vetigastropoda, the structure of the ovaries of Batillus cornutus [17], Haliotis discus hannai [14], and Haliotis gigantea [15] shows numerous oogenic follicles similar to those of bivalves. These oocytes, as in those in bivalves, possess egg stalks, which are transport channels for vitellogenin [37,38].…”

Microanatomy of gill of the abalone, Haliotis discus hannai (Ino, 1953) (Gastropoda: Haliotidae)

“…가리비, Placopecten magellanicus 아가미의 주새엽에 존재하는 점액세포들은 대부분 (85% 이상) 은 산성과 중성점액물질을 함유하고 있는 혼합된 점액세포였 지만, 부새엽에서는 45-58%의 점액세포들이 대부분 산성이었 다 (Beninger et al, 1993). 소라의 아가미에서는 4종류의 분 비세포들이 기재되었는데, 이들은 모두 단세포선으로 주로 산 성점액을 함유한다 (Jung et al, 2011). 진주담치, Mytilus edulis의 아가미 점액세포들은 산성점액물질과 중성점액물질 들이 일정한 비율로 분포하고, 점액세포의 분포정도도 Placopecten magellanicus 보다 일정하였는데, 이는 진주담 치의 새엽이 형태적인 분화가 나타나지 않기 때문에 여과와 정 화 기능이 한 곳에서 이루어지는 결과이다 (Beninger et al, 1993).…”

“…(Eertman, 1996) 와 Haliotis iris의 호흡생리 (Ragg and Talyor, 2006) 및 Siphonaria capensis (de Villers and Hodgson, 1987), Haliotis asinine (Wanichanon et al, 2004), Patella (Aksit and Mutaf, 2007)와 Batillus cornutus (Jung et al, 2011 …”

Anti-Inflammatory Effect of Turbo cornutus Viscera Ethanolic Extract against Lipopolysaccharide-Stimulated Inflammatory Response via the Regulation of the JNK/NF-kB Signaling Pathway in Murine Macrophage RAW 264.7 Cells and a Zebrafish Model: A Preliminary Study

“…T. cornutus is an edible gastropod species, and it commands a high economic value in Asia [2]. In South Korea, T. cornutus is used as an important fishery resource and is a major gastropod in the marine industry [3]. The highest amount of T. cornutus (83% of the total national fishery production) is produced in Jeju Island, South Korea, and it is a major source of income for Haenyeo (female divers whose practices are listed as a cultural heritage practice by the United Nations Educational, Scientific, and Cultural Organization).…”