4种壳色合浦珠母贝贝壳棱柱层和珍珠质层7种金属元素质量分数的比较分析

摘要

We analyzed the contents of seven metallic elements in prismatic layer and nacreous layer of shells from four shell color strains[(B),gold(G),red(R)and white(W)]in pearl oyster(Pinctada fucata)by ICP-AES. The Fe,K,Mg and Mn con-tents in prismatic layer were obviously higher than those in nacreous layer. The elements of Mg,Sr,K and Zn in prismatic layer of black shell were the lowest. Similarly,the Mn and Fe contents in prismatic layer of gold shell were lower than those in the other color shells,but Na had minimum content in red shell. Fe,Mg and Zn might have influence on the formation of red,gold and white shells. Besides,the nacreous layer of white shell had the lowest level in the content of analytical elements except Mg,which indicates that the white shell in pearl oysters is more likely to produce pearls of better quality.%利用电感耦合等离子体发射光谱法（ICP-AES）对合浦珠母贝（Pinctada fucata）黑、金、红、白 F5代选育群体贝壳棱柱层和珍珠质层的7种金属元素质量分数进行比较分析。结果显示，合浦珠母贝贝壳棱柱层中铁（Fe）、钾（K）、镁（Mg）和锰（Mn）的质量分数明显高于珍珠质层，而钠（Na）、Sr（锶）和锌（Zn）的质量分数则低于珍珠质层。4种壳色棱柱层和珍珠质层中的金属元素质量分数均存在差异：Mg、Sr、K、Zn 在黑壳合浦珠母贝棱柱层中质量分数最低，Mn、Fe 在金壳棱柱层中最低，而 Na 却在红壳棱柱层中最低；单因素方差分析显示，Fe、Mg、Zn 可能分别会影响合浦珠母贝红壳、金壳、白壳的形成。白壳贝珍珠质层的6种金属元素（Mg 除外）质量分数都最少，更有可能培育出优质珍珠。