Phasic Activity in the Digestive Gland Cells of the Intertidal Prosobranch, Littorina Saxatilis (Olivi) and Its Relations to the Tidal Cycle

Boghen, Andrew D.; Farley, John

doi:10.1093/oxfordjournals.mollus.a065256

Cited by 14 publications

(18 citation statements)

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“…The morphology of basophilic cells (also named crypt cells, excretory cells, or secretory cells) found in the digestive tubules of Z. dufresnei is similar to the basophilic cells described for other molluscs species (Owen, 1970(Owen, , 1973Pal, 1971;Merdsoy & Farley, 1973;Boghen & Farley, 1974;Mathers et al, 1979;Nelson & Morton, 1979;Henry et al, 1991;Lobo-da-Cunha, 1999;Baqueiro Cárdenas et al, 2007;Gros et al, 2009;. In A. punctata, similar cells containing dense granules of calcium salts, named calcium cells, were found (Taïeb & Vicente, 1999).…”

Section: Discussionsupporting

confidence: 65%

“…These vesicles could be formed by the fusion of endocytic vesicles, as was observed in other mollusc species (Owen, 1970;Boghen & Farley, 1974;Lobo-da-Cunha, 2000;Taïeb, 2001). The second type of vesicle (V 2 ) resembled the heterolysosomes (or phagosomes, or digestive vacuoles, or green granules) reported in other molluscs; these are structures produced by the fusion of endocytic vesicles and enzyme-rich vesicles such as lysosomes (Owen, 1970;Pal, 1972;Dimitriadis & Andrews, 2000).…”

Section: Discussionmentioning

confidence: 72%

“…Digestive phases linked to environmental factors such as the tidal cycle have been described in some bivalves (Benninger & Le Pennec, 2006) and gastropods (Merdsoy & Farley, 1973;Boghen & Farley, 1974;Nelson & Morton, 1979). The digestive gland of Z. dufresnei has a dynamic state in its morphology, in which most tubules are at the same stage.…”

Section: Discussionmentioning

confidence: 99%

“…In some species, digestive cells can collect relatively large food particles by phagocytosis, but in others extracellular digestion occurs and only dissolved substances are captured by small endocytic vesicles (Merdsoy & Farley, 1973;Boghen & Farley, 1974;Lobo-da-Cunha, 2000). Many endocytic vesicles were observed in the apical border of Z. dufresnei digestive cells.…”

Section: Discussionmentioning

confidence: 99%

“…Most studies of the histology of the molluscan digestive gland have been conducted on bivalves (Owen, 1970;Thompson et al, 1 Logan et al, 2008) and herbivorous microphagous gastropods (Merdsoy & Farley, 1973;Boghen & Farley, 1974;Reader, 1976;Wigham, 1976;Nelson & Morton, 1979;Taïeb & Vicente, 1999;Lobo-da-Cunha, 1999, 2000Taïeb, 2001;Baqueiro Cárdenas et al, 2007;Gros et al, 2009;. However, a study by Dimitriadis & Andrews (2000) on the neogastropod Nucella lapillus (Linnaeus, 1758) has provided the only report of the functional morphology of the digestive gland of a carnivorous caenogastropod.…”

Section: Introductionmentioning

confidence: 99%

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Morphology and Cyclic Activity of the Digestive Gland ofZidona dufresnei(Caenogastropoda: Volutidae)

2015

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Section: Discussionsupporting

confidence: 65%

Section: Discussionmentioning

confidence: 72%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Morphology and Cyclic Activity of the Digestive Gland ofZidona dufresnei(Caenogastropoda: Volutidae)

2015

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Cytochemical investigation of the digestive gland of two strombidae species (Strombus gigas and Strombus pugilis) in relation to the nutrition

Volland

Gros

2012

Microscopy Res & Technique

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Strombus gigas and Strombus pugilis are threatened species and aquaculture represents a good alternative solution to the fishing. In this study, we highlighted the intracellular digestion process in the digestive gland of two Strombidae species, S. gigas and Strombuspugilis, by the cytochemical characterization of two lysosomal enzymes: acid phosphatase and arylsulfatase. In order to check the efficiency of artificial food digestion, we conducted the characterization on freshly collected, starved and artificially fed individuals of S. pugilis. TEM observations of digestive gland sections from freshly collected individuals of both species revealed the presence of acid phosphatase and arylsulfatase activity mostly located in the apical third of digestive cells. Both enzymes were also detected in artificially fed individuals. In response to the starvation, acid phosphatase is not produced anymore by digestive cells, while arylsulfatase is still present. To our knowledge, this is the first cytochemical validation of intracellular digestion of artificial food in Strombidae. This study highlights the intracellular digestion of artificial food developed for Strombidae aquaculture. Moreover, we have shown that the lysosomal activity could be used as a feed index.

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Morphology of epithelial cells lining the digestive tract of the giant keyhole limpet, Megathura crenulata (Mollusca; Vetigastropoda)

Martin

Bessette

Martin

et al. 2010

Journal of Morphology

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To understand the digestive functions in the giant keyhole limpet, it is important to know the types of cells present in each region of the gut and their roles in the secretion of digestive enzymes and absorption of nutrients. This study describes the morphology of cells lining the entire gut and identifies sites that may be secreting materials to aid digestion. Previous studies involving electron microscopy and enzyme analysis have focused on the salivary and digestive glands of several gastropods. Studies on the rest of the gut tract typically include only histological descriptions of the epithelia and although several types of cells have been described, they appear very similar. The purpose of this study is to determine if electron microscopy can provide better insights into the functions of cells in these poorly studied regions of the gut. Our ultrastructural observations suggest that only two types of cells, mucus secreting cells and apocrine secretory cells make up the epithelium in the esophagus, style sac, and intestine. These regions account for 85% of the length of the entire digestive tract. Apocrine secretory cells contain pigment granules, bear cilia, and/or microvilli at their apices, and release product into the gut lumen via apocrine secretion. This suggests that the secretory processes involved with digestion are occurring in most regions of the gut and that apocrine secretion is the primary mode by which materials are introduced into the gut lumen. The lips, salivary glands, stomach, and digestive gland lack apocrine secretory cells and the epithelial cells are similar to those described in other gastropods. J. Morphol. 271:1134-1151, 2010. (c) 2010 Wiley-Liss, Inc.

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Phasic Activity in the Digestive Gland Cells of the Intertidal Prosobranch, Littorina Saxatilis (Olivi) and Its Relations to the Tidal Cycle

Cited by 14 publications

References 0 publications

Morphology and Cyclic Activity of the Digestive Gland ofZidona dufresnei(Caenogastropoda: Volutidae)

Morphology and Cyclic Activity of the Digestive Gland ofZidona dufresnei(Caenogastropoda: Volutidae)

Cytochemical investigation of the digestive gland of two strombidae species (Strombus gigas and Strombus pugilis) in relation to the nutrition

Morphology of epithelial cells lining the digestive tract of the giant keyhole limpet, Megathura crenulata (Mollusca; Vetigastropoda)

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