Differentiating the dynamics of native and newly immobilized amino sugars in soil frequently amended with inorganic nitrogen and glucose
文献类型：期刊论文
| 作者 | He, H. B.1; Li, X. B.1; Zhang, W.1; Zhang, X. D.1,2 |
| 刊名 | EUROPEAN JOURNAL OF SOIL SCIENCE
 |
| 出版日期 | 2011-02-01 |
| 卷号 | 62期号:1页码:144-151 |
| ISSN号 | 1351-0754 |
| DOI | 10.1111/j.1365-2389.2010.01324.x |
| 英文摘要 | The application of available substrates regulates the soil-microbial environment and thus directly affects microbial metabolic processes. As stable microbial residues, the turnover of soil amino sugars is dependent on the availability of fresh inputs of carbon and nitrogen (N), which can be investigated by differentiating between the newly synthesized and the natively resistant fractions by isotope tracing techniques. Therefore, a series of incubations were conducted with soils amended with glucose plus 15N-labelled inorganic N. The treatments included (i) glucose + 15NH(4)+ added once a week, (ii) glucose + 15NO(3)- added once a week and (iii) glucose added once a week, but 15NH(4)+ added every 3 weeks. The 15N enrichment in the target compound was identified by gas chromatography/mass spectrometry (GC/MS) and the dynamics of amino sugars were found to be compound-specific in response to different substrate applications. The content of 15N-containing glucosamine increased significantly across all treatments but the unlabelled portion was decreased only after glucose + 15NO(3)- amendment. The synthesis of 15N-labelled muramic acid was concomitant with the decomposition of the original unlabelled soil portion and the net accumulation occurred in the glucose + 15NH(4)+ treatment. Both the increase and decline of galactosamine content was smaller and showed no significant difference among treatments. Using the dynamics of glucosamine and muramic acid as a basis, the response of different microbial communities to glucose and nitrogen additions was observed. Fungal cell wall residues mainly contributed to the stabilization of soil organic matter, while bacterial cell wall components were easily degraded to provide either carbon or N. |
| WOS研究方向 | Agriculture |
| 语种 | 英语 |
| 出版者 | WILEY-BLACKWELL PUBLISHING, INC |
| WOS记录号 | WOS:000286225100017 |
| 源URL | [http://210.72.129.5/handle/321005/121887]  |
| 专题 | 中国科学院沈阳应用生态研究所 |
| 通讯作者 | Zhang, X. D. |
| 作者单位 | 1.Chinese Acad Sci, Inst Appl Ecol, Key Lab Terr Ecol Proc, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Natl Field Res Stn Shenyang Agroecosyst, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | He, H. B.,Li, X. B.,Zhang, W.,et al. Differentiating the dynamics of native and newly immobilized amino sugars in soil frequently amended with inorganic nitrogen and glucose[J]. EUROPEAN JOURNAL OF SOIL SCIENCE,2011,62(1):144-151. |
| APA | He, H. B.,Li, X. B.,Zhang, W.,&Zhang, X. D..(2011).Differentiating the dynamics of native and newly immobilized amino sugars in soil frequently amended with inorganic nitrogen and glucose.EUROPEAN JOURNAL OF SOIL SCIENCE,62(1),144-151. |
| MLA | He, H. B.,et al."Differentiating the dynamics of native and newly immobilized amino sugars in soil frequently amended with inorganic nitrogen and glucose".EUROPEAN JOURNAL OF SOIL SCIENCE 62.1(2011):144-151. |
入库方式： OAI收割
来源：沈阳应用生态研究所
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