Growth of nacre in abalone: Seasonal and feeding effects
Growth of nacre in abalone: Seasonal and feeding effects
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DOI：
10.1016/j.msec.2010.09.003
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发表时间：
2011-03-12
影响因子：
7.9
通讯作者：
Meyers, M. A.
中科院分区：
文献类型：
--
作者：
Lopez, M. I.;Chen, P. Y.;Meyers, M. A.
分析了红鲍生长过程中无机物和有机物在生长表面的聚集过程。采用平板珍珠注入法观察了碳酸钙沉积的瞬态过程、有机夹层的结构和文石砖的稳态生长。用扫描电子显微镜对有机夹层的形貌进行了表征。这些结果使一个现实的描述，包括在这个腹足类动物的主要生物矿化机制的梯田锥的形成。在所有情况下，生长开始通过球晶，然后由瓷砖形成。温度较高时，球晶形成的过渡阶段较短;这表明动物在21摄氏度时活动更大。在一个正常喂养的腹足类的增长率被认为是较高的相比，提供有限的食物。水温（季节性）的影响也被确定，夏季（T-21摄氏度）比冬季（15摄氏度）生长更快。有机夹层和上皮的结构通过扫描电子显微镜显示。由爱思唯尔公司出版
The processes of aggregation of mineral and organic materials to the growing surfaces in red abalone (Haliotis rufescens) are analyzed. The flat pearl implantation method is used to observe the transient stages of calcium carbonate deposition, the structure of the organic interlayer, and the steady-state growth of aragonite tiles. The morphology of the organic interlayer is characterized by scanning electron microscopy. These results enable a realistic depiction of the formation of the terraced cones that comprise the principal biomineralization mechanism in this gastropod. In all cases, the growth initiated through spherulites, followed by tile formation. The transient stage with spherulitic formation was shorter at higher temperature; this is indicative of a greater activity of the animal at 21 degrees C. The growth rate in a normally fed gastropod was found to be higher compared with one provided with limited food. The effect of water temperature (seasonal) was also established, with growth proceeding faster in the summer (T-21 degrees C) than in winter (15 degrees C). The structures of the organic interlayer and of the epithelium are revealed by scanning electron microscopy. Published by Elsevier B.V.