| Distribution and Variation of Ribonucleic Acid （RNA） and Protein and Its Hydrolysis Products in Lake Sediments |
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| 引用本文： | 梁小兵,万国江,黄荣贵.Distribution and Variation of Ribonucleic Acid （RNA） and Protein and Its Hydrolysis Products in Lake Sediments[J].中国地球化学学报,2002,21(2):175-185. |
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| 作者姓名： | 梁小兵 万国江 黄荣贵 |
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| 作者单位： | [1]StateKeyLab.ofEnvironmentalGeochemistry,InstituteofGeochemistry,ChineseAcademyofSciences,Guiyang550002,China [2]StateKeyLab.ofEnvironmentalGeochemistry,InstituteofGeochemistry,ChineseAcademyofSciences,Gu |
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| 基金项目： | 国家自然科学基金，Guizhou Provincial Foundation，中国科学院知识创新工程项目 |
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| 摘 要： |
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| 关 键 词： | 水解反应 碳 氮 磷 硫 RNA 核糖核酸 蛋白质 湖泊沉积物 贵州 |
Distribution and variation of ribonucleic acid (RNA) and protein and its hydrolysis products in lake sediments |
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| Liang Xiaobing,Wan Guojiang,Huang Ronggui.Distribution and variation of ribonucleic acid (RNA) and protein and its hydrolysis products in lake sediments[J].Chinese Journal of Geochemistry,2002,21(2):175-185. |
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| Authors: | Liang Xiaobing Wan Guojiang Huang Ronggui |
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| Institution: | (1) State Key Lab. of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, 550002 Guiyang, China |
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| Abstract: | Protein and RNA in lake sediments tend to be decomposed progressively with time and sedimentation depth. Their concentrations
tend to decrease starting from the sedimentation depth of 17 cm and that of 19 cm, respectively. However, the products of
their decomposition —amino acids and nucleotides show different rules of variation. At the depth from 27 cm to 30 cm the amino
acids are most abundant in the pore waters of lake sediments. Such variation tendency seems to be related to the extent to
which microbes utilize amino acids and nucleotides. Due to polymerization in the geological processes and the adsorption of
protein on minerals and organic polymers, below the sedimentation depth of 17 cm there is still a certain amount of protein
in the sediments. With the time passing by, protein has been well preserved in various sediment layers, indicating that its
decomposition is relatively limited. The peak values of protein content in the sediments of the two lakes are produced in
the surface layers at the depth of 10 cm, implicating that the surface sediments are favorable to the release of protein.
The contents of amino acids in the pore waters of lake sediments are closely related to the activities of microbes. Below
the depth of 27 cm, the amino acids are significantly accumulated in Lake Aha sediments, probably indicating the weakening
of microbial activities.
The research project was financially supported jointly by the Ntional Natural Science Foundation of China (No. 40173038) and
the Guizhou Provincial Foundation (No. 3090) and the Chinese Academy of Sciences Knowledge-Innovation Foundation (KZCX2-105). |
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| Keywords: | protein ribonucleic acid (RNA) lake sediment variation characteristics Guizhou Province |
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