Abstract
The mineral composition of nine species of red calcareous algae (Corallinaceae, Rhodophyta) collected in the Adriatic Sea in 1987 and 1988 was examined by X-ray powder diffraction (counter diffractometer, monochromatized CuKα radiation). In addition, a comparison between the calcareous algae from the north Adriatic (Rovinj area) and the central Adriatic (Kornati Islands) with regard to genus, species and environmental factors was undertaken. All analyzed samples contained magnesium calcite, which was dominant in all but in two cases, where aragonite was the main phase. Diffraction lines of magnesium calcite were broadened and shifted toward higher Bragg angles in relation to pure calcite. Supposing that in the calcite crystal lattice only magnesium replaces calcium, it follows that the fraction of magnesium in magnesium calcite, found from diffraction line shifts, would be 18 molar % (M%). Aragonite was dominant (75 to 80 M%) in two samples of Pseudolithophyllum expansum collected at Kornati Islands in 1987 and 1988. These two samples also contained magnesium calcite and a small fraction of calcite (5 to 10 M%). In other studied samples aragonite was detected in small fractions, up to 10 M%. The elemental analysis of corallinacean algae obtained by X-ray spectroscopy showed that the fraction of the metals Sr, Fe, Mn, Zn, Pb, Br, Cu and Rb was very small (15 to 2000 ppm). In most samples other expected minerals were detected in small fractions, such as sylvite (KCl, up to 2 M%), quartz (α-SiO2, up to 2 M%) and magnesite (MgCO3, only in one sample, 1 M%). The results show that calcareous algae are able to deposit a mixture of magnesium calcite, calcite and aragonite. Such a large molar fraction of aragonite in the alga P. expansum, or in any other corallinacean algae, has not been noted in recent literature. It seems that a complexity of microclimatic and oceanographic factors may influence the diversity of two localities and cause some exchange in living organisms. In addition, the fact that under certain conditions the same organism is capable of forming different minerals from the same tissue (McConnaughey 1989) confirms our opinion that environmental effects are imprinted in the skeletal composition of calcareous algae P. expansum.
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References
Addadi L, Berman A, Moradian Oldak J, Weiner S (1989) Structural and stereochemical relations between acidic macromolecules of organic matrices and crystals. Connect Tissue Res 21:127–135
Aharon P (1991) Recorders of reef environment histories: stable isotopes in corals, giant clams and calcareous algae. Coral Reefs 10:71–90
Baas-Becking LGM, Wayne-Galliher E (1931) Wall structure and mineralization in coralline algae. J phys Chem, Wash 35(1):467
Babička J (1936) La teneur de Padina pavonia de l'île de Rab en manganèse. Sitz b böhm Ges Wiss Trida II. 5:1–4
Birchall JD (1989) The importance of the study of biominerals to materials technology In: Mann S, Webb J, Williams RJP (eds) Biomineralization. Chemical and biochemical perspectives. VCH Verlagsgesellschaft. Weinheim, pp 491–509
Borowitzka MA (1989) Carbonate calcification in algae — initiation and control. In: Mann S, Webb J, Williams RJP (eds) Biomineralization. Chemical and biochemical perspectives. VCH Verlagsgesellschaft, Weinheim, pp 63–95
Borowitzka MA, Larkum AWD, Nockolds E (1974) A scanning electron microscope study of the structure and organization of the calcium carbonate deposits of algae. Phycologia 13:195–203
Cabioch J, Giraud G (1986) Structural aspects of biomineralization in the coralline algae (calcified Rhodophyceae). In: Leadbeater BSC, Riding R (eds) Biomineralization in lower plants and animals. Clarendon Press, Oxford, pp 141–156
Chave KE (1954) Aspects of the biogeochemistry of magnesium. I. Calcareous marine organisms. J Geol 62:266–283
Chave KE, Wheeler BD Jr (1965) Mineralogic changes during growth in the red algae, Clathromorphum compactum. Science, NY 147:621
Degobbis D (1983) The influence of external sources on the nutrient content of the Rijeka Bay (the Adriatic Sea). Thalassia jugosl 19:99–109
Degobbis D, Picer M, Sipos L, Šobot S (1988) National monitoring programme of Yugoslavia. Report for 1983–1986. MAP Technical Reports Series No. 23. UNEP, Athens, p 223
Friganović M (1984) The National Park of Kornati. (ed) Privredni vjesnik, Turističke monografije 3, Zagreb, pp 1–128 (in Croatian)
Giraud G, Cabioch J (1979) Ultrastructure and elaboration of calcified cell-walls in the coralline algae (Rhodophyta, Cryptonemiales). Biologie cell 36(1):81–86
James NP, Wray JL, Ginsburg RN (1988) Calcification of encrusting aragonitic algae (Peyssonneliaceae): implications for the origin of late Paleozoic reefs and cements. J sedim Petrol 58(2):291–303
Johnson CR, Muir DG, Reysenbach AL (1991) Characteristic bacteria associated with surfaces of coralline algae: a hypothesis for bacterial induction of marine invertebrate larvae. Mar Ecol Prog Ser 74:281–294
King RJ, Schramm W (1982) Calcification in the maerl coralline alga, Phymatolithon calcareum; effects of salinity and temperature. Mar Biol 70:197–205
Lewin JC (1962) Calcification. In: Lewin RA (ed) Physiology and biochemistry of algae. Academic Press, New York, pp 457–465
Linck G (1930) Der Strahlenkalk von Steinhein eine Cladophore. Chem Erde 6:72
Lowenstam HA (1981) Minerals formed by organisms. Science, NY 211:1126–1131
Mann S (1991) Biomineralization: a novel approach to crystal engineering. Endeavour (New Ser) 15(3):120–125
McConnaughey T (1989) Biomineralization mechanisms. In: Crick RE (ed) Origin, evolution, and modern aspects of biomineralization in plants and animals. Plenum Press, New York, pp 57–73
Medakovié D, Hrs-Brenko M, Popović S, Gržeta B (1989) X-ray diffraction study of the first larval shell of Ostrea edulis. Mar Biol 101:205–209
Pérès JM, Picard J (1964) Nonveau manuel de bionomie benthique de la Mediterranee. Recl Trav Stn mar Endoume 31(47):5–137
Popović S, Gržeta B (1979) The doping method in quantitative X-ray diffraction phase analysis. J appl Crystal 12:205–208
Popović S, Gržeta B, Balić-Žunić T (1983) The doping method in quantitative X-ray diffraction phase analysis. Addendum. J appl Crystal 16:505–507
Pueschel CM, Eichelberger HH, Trick HN (1992) Specialized calciferous cells in the marine alga Rhodogorgon carriebowensis and their implications for models of red algal calcification Protoplasma 166:89–98
Stark LM, Almodovar L, Krauss RW (1969) Factors affecting the rate of calcification in Halimeda opuntia (L.) Lam. and Halimeda discoidea Decaisne. J Phycol 5:305–312
Vinogradov AP (1953) Elementary composition of nonplanctonic marine algae, Chapter II. In: Parr AE (ed) The elementary chemical composition of marine organisms. Scars Foundation for Marine Research, New Haven, pp 17–129
Walker R, Moss B (1984) Mode of attachment of six epilithie crustose Corallinaceae (Rhodophyta). Phycologia 23(3):321–329
Webb J, Evans LA, St. Pierre TG, Macey DJ (1991) Biominerals-source and inspiration for novel advanced materials. Search, Sydney 22(4):137–139
Wefer G (1980) Carbonate production of algae Halimeda, Penicillus and Padina. Nature, Lond 285:323–324
Zavodnik D (1967) Dynamics of the Littoral phytal on the west coast of Istria. Razsprave-Dissertationes. Slov Akad zn umet 10:5–67 (in Slovenian)
Zavodnik N, Popović S, Gržeta B, Medaković D (1989) X-ray diffraction study of mineral composition of calcareous algae (Rhodophyta) in the Adriatic Sea. Ann Yug Cent Crystallogr (Suppl) 24:68–69
Županović Š, Jardas I (1989) Fauna et Flora Adriatica. Logos and Institute for Oceanography and Fisheries, Split, pp 1–415 (In Croatian)
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Communicated by O. Kinne, Oldendorf/Luhe
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Medaković, D., Popović, S., Zavodnik, N. et al. X-ray diffraction study of mineral components in calcareous algae (Corallinaceae, Rhodophyta). Marine Biology 122, 479–485 (1995). https://doi.org/10.1007/BF00350882
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DOI: https://doi.org/10.1007/BF00350882