Temperature sensitivity of soil bacterial community along contrasting warming gradient
文献类型：期刊论文
| 作者 | Wu, Jinfeng1; Xiong, Jinbo1; Hu, Changju1; Shi, Yu2; Wang, Kai1; Zhang, Demin1 |
| 刊名 | APPLIED SOIL ECOLOGY
 |
| 出版日期 | 2015-10-01 |
| 卷号 | 94页码:40-48 |
| 关键词 | Contrasting temperature Bacterial community Turnover rate Temperature relationship Indicator species |
| ISSN号 | 0929-1393 |
| DOI | 10.1016/j.apsoil.2015.04.018 |
| 通讯作者 | Xiong, Jinbo(xiongjinbo@nbu.edu.cn) |
| 英文摘要 | Soil microbial communities potentially mediate the feedbacks to climate change, and thus, the understanding of microbial ecology is central to predict future global warming. However, the direct warming effects on microbial communities are uncertain due to the confounding effects of plant traits and soil heterogeneities. Here, we exposed alpine meadow soil microcosms to temperature between 10 and 40 degrees C for 28 days, to evaluate the temperature relationship of the bacterial community structure and microbial functions. Our results showed that sustained exposure to contrasting temperature produced compositionally and functionally distinct microbial communities. The degree of these changes was dependent on the magnitude of warming, as shown by a consistent increase in the dissimilarities and a shift of the carbon (C) use pattern along the temperature gradient. We found that the bacterial community temporal dynamics followed a gradual process of succession, and the turnover rate was substantially accelerated (P = 0.012) by warmer temperatures; every 1 degrees C elevation in soil temperature was estimated to increase the turnover by 0.001. Consistently, contrasting temperature was found to be the dominant factor explained 6.1% of the total variation of the microbial community structures; however, the incubation duration and the interaction between incubation temperature and duration explained 5.4% and 4.1% of the variation, respectively. As anticipated, the shift in bacterial community rapidly translated to a similar change in enzymes activities and C utilization. In addition, potential indicator species were screened; these species characterized the temperature gradient. Collectively, our findings indicate that direct warming effects on soil bacterial community could substantially alter certain function and that contrasting temperatures would accelerate the bacterial community turnover-temperature relationship in this alpine meadow soil. (C) 2015 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| WOS关键词 | CARBON-CYCLE FEEDBACKS ; MICROBIAL COMMUNITIES ; CLIMATE-CHANGE ; TIBETAN PLATEAU ; FOREST SOILS ; ELEVATED CO2 ; ADAPTATION ; RESPONSES ; SEQUENCES ; PATTERNS |
| WOS研究方向 | Agriculture |
| WOS类目 | Soil Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000355673500006 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558396 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Xiong, Jinbo |
| 作者单位 | 1.Ningbo Univ, Fac Marine Sci, Ningbo 315211, Zhejiang, Peoples R China 2.Chinese Acad Sci, Inst Soil Sci, Nanjing 210008, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Jinfeng,Xiong, Jinbo,Hu, Changju,et al. Temperature sensitivity of soil bacterial community along contrasting warming gradient[J]. APPLIED SOIL ECOLOGY,2015,94:40-48. |
| APA | Wu, Jinfeng,Xiong, Jinbo,Hu, Changju,Shi, Yu,Wang, Kai,&Zhang, Demin.(2015).Temperature sensitivity of soil bacterial community along contrasting warming gradient.APPLIED SOIL ECOLOGY,94,40-48. |
| MLA | Wu, Jinfeng,et al."Temperature sensitivity of soil bacterial community along contrasting warming gradient".APPLIED SOIL ECOLOGY 94(2015):40-48. |
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来源：南京土壤研究所
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