This Article Abstract Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Add to Saved Citations Download to citation manager Request Permissions Request Reprints Add to My Marked Citations Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Citing Articles via Scopus Google Scholar Articles by Suga, S. Articles by Ogawa, M. Search for Related Content PubMed PubMed Citation Articles by Suga, S. Articles by Ogawa, M. Pubmed/NCBI databases Compound via MeSH Substance via MeSH Hazardous Substances DB IRON Social Bookmarking                         What's this?

Iron in the Enameloid of Perciform Fish

Department of Pathology, The Nippon Dental University, School of Dentistry at Tokyo, 1-9-20, Fujimi, Chiyoda-ku, Tokyo, 102, Japan

Y. Taki

Tokyo University of Fisheries, 5-7, Konan-4, Minato-ku, Tokyo, 108, Japan

M. Ogawa

Department of Pathology, The Nippon Dental University, School of Dentistry at Tokyo, 1-9-20, Fujimi, Chiyoda-ku, Tokyo, 102, Japan

It is known that a high concentration of iron is deposited in the enameloid of some teleostean fish. Previously, Suga et al. (1989) pointed out that the iron concentration in the enameloid is related to the phylogeny of fish rather than to the feeding habits, according to the results of quantitative iron analyses on the teeth of marine teleost fish of the Tetraodontiformes. In the present study, in order for the previous idea to be verified, quantitative iron analysis was made with an electron microprobe on the enameloid offish belonging to the Perciformes, which is the largest group of teleostean fish in the world and consists of both marine and freshwater species. The enameloid of all the fish examined (57 species) contained high iron concentrations ranging from 0.2% to 10.2% at the surface or middle layer, whereas that of an advanced suborder, Tetraodontoidei, of the Tetraodontiformes was very low in iron, at a level which could not be discriminated from the background value of the emission intensity. The distribution pattern of iron in the enameloid was classified into at least two types, namely, type A, in which a high iron concentration was observed mainly in the surface layer, and type B, in which iron was deposited throughout the entire layer, although there were differences in concentration. There were some differences in the concentration and distribution of iron in the enameloid for the families; for example, those of the Scaridae had a type A distribution, with about 0.2% iron only at the surface layer, whereas those of the Cichlidae, Centrarchidae, and Acanthuridae, which showed a type B distribution, contained iron ranging from 2.9% to 10.5% at the surface or middle layer of enameloid. Such differences seemed to be associated with the difference in timing of the commencement of the iron deposition into the developing enameloid, which is probably related to the phylogeny of fish. There was no evidence to support the idea that the iron concentration in the enameloid is associated with the feeding habits offish, as proposed by previous investigators.

REFERENCES

• Bauminger E., Ofer S., Gedalia I., Horowitz G., Mayer I. (1985). Iron uptake by teeth and bones: a Mossbauer effect study. Calcif Tissue Int 37:386-389.[Medline] [Order article via Infotrieve]
• Besic FC, Bayard M., Wieman MR Jr, Burrell KH (1975). Composition and crystalline structure of dental enamel as they relate to its solubility. JAm DentAssoc 91:594-601.
• Garant PR (1970). Observations on the ultrastructure of the ectodermal component during odontogenesis in Helostoma temmincki. Anat Rec 166:167-188.[CrossRef][Medline] [Order article via Infotrieve]
• Greenwood PH, Rosen DE, Weitzman SH, Myers GS (1966). Phyletic studies ofteleostean fish, with a provisional classification oflivingforms. Bull Am Mus Natl Hist 131 (art. 4):341-455.
• Hiatt RW, Strasburg DW (1960). Ecological relationships of the fish fauna in coral reefs ofthe Marshall Islands. Ecological Monogr 30:65-127.[CrossRef]
• LeGeros RZ, Suga S. ( 1980). Crystallographic nature of fluoride in enameloids of fish. Culcif Tissue Int 32:169-174.[CrossRef]
• LeGeros RZ, Taheri MH, Quirolgico CB, LeGeros JP (1980). Formation and stability of apatite: effects of some cationic substituents. In: Proceedings, 2nd International Congress on Phosphorus Compounds. Boston (MA), 89-103.
• Lowenstam HA (1967). Lepidocrocite, an apatite mineral, and magnetite in teeth of chitons (polyplacophora). Science 156:1373-1374.[Abstract/Free Full Text]
• Miles Aew (1963). Pigmented enamel. Proc R Soc Med 56:918-920.[Medline] [Order article via Infotrieve]
• Motta PJ (1987). A quantitative analysis of ferric iron in butterflyfish teeth (chaetodontidae, perciformes) and the relationship to feeding ecology. Can J Zool 65:106-112.[CrossRef]
• Myers GS (1951). Fresh-water fish and east Indian zoogeography. Stanford Ichthyol Bull 4:11-21.
• Okazaki M., Takahashi J., Kimura H. (1985). Iron uptake of hydroxyapatite. J Osaka Univ Dent Sch 25:17-24.[Medline] [Order article via Infotrieve]
• Schmidt WJ (1958). Natürliche farbung von reptilien- und fischzahnen durch eisenoxyd. Zool Anz 161:168-178.
• Schmidt WJ (1969). Die schmelznatur der eisenoxidhaltigen kappe auf teleostier-zahnen. Z Zellforsch Mikrosk Anat 93:447-450.[CrossRef][Medline] [Order article via Infotrieve]
• Scott WB, Crossman EJ (1973). Freshwater fish of Canada. Ottawa (Canada): Fisheries Research Board of Canada, Bulletin 184, 722-723.
• Selvig KA, Halse A. (1975). The ultrastructural localization of iron in rat incisor enamel. Scand J Dent Res 93:88-95.
• Shellis RP, Berkovitz Bkb (1976). Observations on the dental anatomy of piranhas (characidae) with special reference to tooth structure. J Zool 180:69-84.
• Sparks Nhc, Motta PJ, Shellis RP, Wade VJ, Mann S. ( 1990). An analytical electron microscopy study of iron-rich teeth from the butterflyfish (chaetodon ornatissimus). J Exp Biol 151:371-385.[Abstract/Free Full Text]
• Stephenson DA (1969). An improved flux-fusion technique for x-ray emission analysis. Anal Chem 41:966-967.
• Suga S. ( 1984). The role of fluoride and iron in mineralization of fish enameloid. In: Fearnhead RW, Suga S, editors. Tooth enamel. Amsterdam (The Netherlands): Elsevier Science Publishers BV, 472-477.
• Suga S., Aoki H., Yamashita Y., Tsuno M., Ogawa M. (1987). A comparative study of disturbed mineralization of rat incisor enamel induced by strontium and fluoride administration. Adu Dent Res 1:339-355.
• Suga S., Taki Y., Wada K. ( 1983). Fluoride concentration in the teeth of perciform fish and its phylogenetic significance. Jpn J Ichthyol 30:81-93.
• Suga S., Taki Y., Wada K., Ogawa M. (1991). Evolution of fluoride and iron concentrations in the enameloid of fish teeth. In: Suga S, Nakahara H, editors. Mechanisms and phylogeny of mineralization in biological systems. Tokyo (Japan): Springer-Verlag, 439-446.
• Suga S., Wada K., Ogawa M. (1981a). Fluoride concentration in teeth of tetraodontiform fish and its phylogenetic significance. Jpn J Ichthyol 28:304-312.
• Suga S., Wada K., Ogawa M. (1981b). Fluoride concentration in the enameloid of fish teeth and its relationship to the phylogeny of fish. In: Binder K, Hohenegger M, editors. Fluoride metabolism. Wien (Austria): Verlag Wilhelm Maudrich, 79-88.
• Suga S., Wada K., Taki Y., Ogawa M. (1989). Iron concentration in teeth of tetraodontiform fish and its phylogenetic significance. J Dent Res 68:1115-1123.[Abstract/Free Full Text]
• Torell P. (1957). Determination of iron in dental enamel. Odont Tidskr 65:20-23.
• Trewavas E. (1983). Tilapiine fish of the genera sarotherodon, oreochromis and danakilia. London (England): British Museum (Natural History), 4.

Journal of Dental Research, Vol. 71, No. 6, 1316-1325 (1992)
DOI: 10.1177/00220345920710060901


CiteULike    Complore    Connotea    Del.icio.us    Digg    Reddit    Technorati    Twitter    What's this?

This article has been cited by other articles:

				S. Sugat, Y. Taki, and M. Ogawa Fluoride and Iron Concentrations in the Enameloid of Lower Teleostean Fish Journal of Dental Research, May 1, 1993; 72(5): 912 - 922. [Abstract] [PDF]

This Article Abstract Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Add to Saved Citations Download to citation manager Request Permissions Request Reprints Add to My Marked Citations Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Citing Articles via Scopus Google Scholar Articles by Suga, S. Articles by Ogawa, M. Search for Related Content PubMed PubMed Citation Articles by Suga, S. Articles by Ogawa, M. Pubmed/NCBI databases Compound via MeSH Substance via MeSH Hazardous Substances DB IRON Social Bookmarking                         What's this?