| 湖泊沉积物中蛋白质和氨基酸的动态变化 |
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| 引用本文： | 梁小兵,万国江,黄荣贵,吴沿友.湖泊沉积物中蛋白质和氨基酸的动态变化[J].矿物学报,2001,21(1):59-63. |
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| 作者姓名： | 梁小兵 万国江 黄荣贵 吴沿友 |
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| 作者单位： | 1. 中国科学院地球化学研究所
2. 中国科学院地球化学研究所环境地球化学国家重点实验室, |
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| 基金项目： | 贵州省自然科学基金项目 !(编号 :3 0 90 )，中国科学院创
新基金项目 |
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| 摘 要： | 测定了阿哈湖和百花湖沉积物孔隙水中蛋白质和氨基酸的含量。蛋白质含量分别在0．32－1．71mg/ml和0．22－1．38mg/ml之间，氨基酸含量分别在1．15－5．01μg/ml（以含N量计）和1．41－4．16μg/ml之间。两湖沉积物氨基酸含量逐渐增高，表明扩散作用的存在。随着时间的推移，蛋白质在沉积物各层中得到了很好的保存，说明它的分解比较有限。沉积物孔隙水中氨基酸含量和微生物活动有关，氨基酸在27cm以后的阿哈湖沉积物中明显积累，可能指示微生物活动的减弱。
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| 关 键 词： | 湖泊沉积物 孔隙水 蛋白质 氨基酸 沉积环境 微生物 |
| 文章编号： | 1000-4734(2001)01-0059-05 |
| 修稿时间： | 2000年7月19日 |
DYNAMIC STUDY OF PROTEIN AND AMINO ACIDS IN LAKE SEDIMENTS |
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| Liang Xiaobing,Wan Guojiang,Huang Ronggui,Wu Yanyou.DYNAMIC STUDY OF PROTEIN AND AMINO ACIDS IN LAKE SEDIMENTS[J].Acta Mineralogica Sinica,2001,21(1):59-63. |
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| Authors: | Liang Xiaobing Wan Guojiang Huang Ronggui Wu Yanyou |
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| Abstract: | The contents of protein and amino acids in pore water in Aha Lake and Baihua Lake sediments were measured to be 0.34～1.19 mg/ml and 0.22～1.38 mg/ml and 1.15～5.01 μg/ml（calculate in nitrogen content） and 1.41～4.16 μg /ml, respectively. Peak protein contents are produced in 10 cm surface sediments of the two lakes. It is shown that surface sediments are favorable to release of protein. Amino acid contents increase gradually from the suspend layer down to 6- or 7-cm sediments, implying the occurrence of diffusion. Proteins have been preserved well in every sediment layer with time passing by. It indicates their decomposition and release are controlled by some factors. Amino acid contents of sediment pore water are related to activities of microorganisms. Below the 27-cm depth, amino acids in Aha Lake sediments are accumulated obviously. It suggested that microorganism activity tends to become weak. |
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| Keywords: | lake sediment pore water protein amino acid sedimentary environment |
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