Summary
The movement of labelled glucose along the digestive tract of two ascidian species, Sidnyum argus and Dendrodoa grossularia is compared. In Dendrodoa grossularia, glucose absorption takes place in all parts of the digestive tract except the oesophagus. Labelled glucose passes through the digestive tract in less than 12 h, and it accumulates in the pyloric ampullae in less than 3 days. In this species, the pyloric gland has more capacity to stock glucidic compounds than other tissues. Under normal feeding conditions, after five days, there is no transfer of labelled glucose to other tissues. Whatever the substances given to Sidnyum argus, its pyloric gland never accumulates labelled products.
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References
Azéma M (1937) Recherches sur le sang et l'excrétion chez les Ascidies. Annls Inst Océanogr Paris 17:1–150
Brown AC, Davies AB (1971) The fate of thorium dioxide introduced into the body cavity of Ciona intestinalis. J Invest Path 18:276–279
Burighel P, Milanesi C (1973) Fine structure of the gastric epithelium of the ascidian Botryllus schlosseri. Vacuolated and zymogen cells. Z Zellforsch 145:541–555
Chandelon T (1875) Recherches sur une annexe du tube digestif des Tuniciers. Bull Acad Roy Belgique 39:911–949
Colton HS (1910) The “pyloric gland” of the ascidian Botryllus — an organ of excretion. Biol Bull Mar Biol Lab Woods Hole 19:35–51
Ermak TH (1977) Glycogen deposits in the pyloric gland of the Ascidian Styela clava (Urochordata). Cell Tissue Res 176:47–55
Fouque G (1954) Contribution à l'étude de la glande pylorique des ascidiacés. Ann Inst Océanogr Paris 28:189–317
Gaill F (1974) Aspect ultrastructural de la glande pylorique et de l'intestin postérieur de Sidnyum argus (Polyclinidae, Tuniciers). Cah Biol Mar 15:337–341
Gaill F (1977) Morphologie et histologie de la glande pylorique des Styelidae (Ascidies). Bull Mus Natn Hist Nat Paris 340:1041–1055
Gaill F (1980) Influence de la nutrition sur l'activité de la glande pylorique d'ascidies (Tuniciers). Bull Mus Natn Hist Nat Paris 2:3–13
Giard H (1872) Recherches sur les Ascidies composées ou Synascidies. Arch Zool Exp Gén 1:501–704
Godeaux J (1954) Observations sur la glande pylorique des Thaliacés. Annls Soc Zool Belg 85:103–118
Isert A (1903) Untersuchungen über den Bau der Drüsengänge des Darms bei den Monascidien. Archs Naturg 69:257–296
Larra J, Droz B (1970) Techniques autoradiographiques et leur application à l'étude du renouvellement des constituants cellulaires. J Microsc 9:845–880
Millar RH (1953) Ciona. LMBC Mem Typ British Mar Plants and Animals 35:1–123
Van Weel PB (1940) Beiträge zur Ernährungsbiologie der Ascidien. Public St Zool Napoli 18:50–79
Yonge CM (1925) Studies on the comparative physiology of digestion. III. Secretion, digestion and assimilation in the gut of Ciona intestinalis British. J Exp Biol 2:373–388
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Gaill, F. Functions of digestive diverticula in marine invertebrates. Cell Tissue Res. 219, 185–195 (1981). https://doi.org/10.1007/BF00210027
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DOI: https://doi.org/10.1007/BF00210027