Abstract:Otolith is a typical natural biomineral as functional deposit existing in teleost’s ears, which is mainly composed of calcium carbonate and organic matter. There is a pair of lapillus, sagitta and asteriscus in fish’s inner ear, respectively. The authors compare the asteriscus and lapillus in cultured ornamental carp using FTIR and Raman. The result shows that the mineral phase in lapillus is aragonite, while the mineral phase in asteriscus is vaterite. The pure aragonite and vaterite existing respectively in otolith are of importance as being used as sample to study aragonite/vaterite biomineralization mechanism. Compared with inorganic induced aragonite and vaterite using FTIR and Raman, the authors found that the spectra of aragonite in lapillus are between those of inorganic induced aragonite and other bio induced aragonite; while the spectra of vaterite in asteriscus are similar to those of other bio induced vaterite. It is possible that unstable vaterite was stabilized through the organic effects in biomineralization process.
[1] PENG Wen-shi, LIU Gao-kui(彭文世, 刘高魁). Acta Mineralogica Sinica(矿物学报), 1983, 3: 169. [2] Jovanovski G, Stefov V, Soptrajanov B, et al. Boev B. Neues Jahrbuch für Mineralogie-Abhandlungen, 2002, 177(3): 241. [3] ZHANG Gang-sheng, LI Hao-xuan(张刚生, 李浩璇). Journal of Mineralogy and Petrology(矿物岩石), 2006, 26(1): 2. [4] Sato M, Matsuda S. Zeitschrift fur Kristallograhie, 1968, 129: 405. [5] ZHANG Gang-sheng, DING Shi-lei, QIU Shu-yuan(张刚生, 丁世磊, 邱树垣). Journal of Mineralogy and Petrology(矿物岩石), 2005, 25(1): 6. [6] Gauldie R W, Sharma S K, Volk E. Comparative Biochemistry and Physiology, 1997, 118A(3): 753. [7] Frech R, Wang E C. Journal of Molecular Structure, 1990, 224: 271. [8] Cloots R. Spectrochimica Acta, 1991, 47(2): 1745. [9] Uroms J, SharmaS K, Mackenzie F T. Amineralogist, 1991, 76: 641. [10] ZHANG Gang-sheng, XIE Xian-de(张刚生, 谢先德). Journal of Guangxi University(Nat. Sci. Ed.)(广西大学学报·自然科学版), 2002, 27(1): 27. [11] Gabrielli C, Jaouhari R, Joiret S, et al. Journal of Raman Specroscopy, 2000, 31: 497. [12] ZHANG Gang-sheng, HAO Yu-lan(张刚生, 郝玉兰). Analytical Instrumentation(分析仪器), 2005, (2): 27. [13] Pattanaik S. Nuclear Instruments and Methods in Physics Research Section B, 2005, 229: 367. [14] Tomas J, Geffen A J, Allen I S, et al. Journal of Fish Biology, 2003, 63: 1383. [15] Tomas J, Geffen A J, Allen I S, et al. Comparative Biochemistry and Physiology A, 2004, 139: 301. [16] Nicolson T. Crystal Growth and Design, 2004, 4: 667. [17] Soellner C, Burghammer M, Busch-Nentwich E, et al. Science, 2003, 302: 282.