globalchange  > 过去全球变化的重建
DOI: 10.1371/journal.pone.0105515
论文题名:
Soil Bacterial Community Response to Differences in Agricultural Management along with Seasonal Changes in a Mediterranean Region
作者: Annamaria Bevivino; Patrizia Paganin; Giovanni Bacci; Alessandro Florio; Maite Sampedro Pellicer; Maria Cristiana Papaleo; Alessio Mengoni; Luigi Ledda; Renato Fani; Anna Benedetti; Claudia Dalmastri
刊名: PLOS ONE
ISSN: 1932-6203
出版年: 2014
发表日期: 2014-8-21
卷: 9, 期:8
语种: 英语
英文关键词: Land use ; Agricultural soil science ; Bacteria ; Soil chemistry ; Soil ecology ; Forests ; Denaturing gradient gel electrophoresis ; Biodiversity
英文摘要: Land-use change is considered likely to be one of main drivers of biodiversity changes in grassland ecosystems. To gain insight into the impact of land use on the underlying soil bacterial communities, we aimed at determining the effects of agricultural management, along with seasonal variations, on soil bacterial community in a Mediterranean ecosystem where different land-use and plant cover types led to the creation of a soil and vegetation gradient. A set of soils subjected to different anthropogenic impact in a typical Mediterranean landscape, dominated by Quercus suber L., was examined in spring and autumn: a natural cork-oak forest, a pasture, a managed meadow, and two vineyards (ploughed and grass covered). Land uses affected the chemical and structural composition of the most stabilised fractions of soil organic matter and reduced soil C stocks and labile organic matter at both sampling season. A significant effect of land uses on bacterial community structure as well as an interaction effect between land uses and season was revealed by the EP index. Cluster analysis of culture-dependent DGGE patterns showed a different seasonal distribution of soil bacterial populations with subgroups associated to different land uses, in agreement with culture-independent T-RFLP results. Soils subjected to low human inputs (cork-oak forest and pasture) showed a more stable bacterial community than those with high human input (vineyards and managed meadow). Phylogenetic analysis revealed the predominance of Proteobacteria, Actinobacteria, Bacteroidetes, and Firmicutes phyla with differences in class composition across the site, suggesting that the microbial composition changes in response to land uses. Taken altogether, our data suggest that soil bacterial communities were seasonally distinct and exhibited compositional shifts that tracked with changes in land use and soil management. These findings may contribute to future searches for bacterial bio-indicators of soil health and sustainable productivity.
URL: http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0105515&type=printable
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/18601
Appears in Collections:过去全球变化的重建
影响、适应和脆弱性
科学计划与规划
气候变化与战略
全球变化的国际研究计划
气候减缓与适应
气候变化事实与影响

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作者单位: ENEA (Italian National Agency for New Technologies, Energy and Sustainable Economic Development) Casaccia Research Center, Technical Unit for Sustainable Development and Innovation of Agro-Industrial System, Rome, Italy;ENEA (Italian National Agency for New Technologies, Energy and Sustainable Economic Development) Casaccia Research Center, Technical Unit for Sustainable Development and Innovation of Agro-Industrial System, Rome, Italy;Consiglio per la Ricerca e la Sperimentazione in Agricoltura - Research Centre for the Soil-Plant System, Rome, Italy;Laboratory of Microbial and Molecular Evolution, Department of Biology, University of Florence, Florence, Italy;Consiglio per la Ricerca e la Sperimentazione in Agricoltura - Research Centre for the Soil-Plant System, Rome, Italy;ENEA (Italian National Agency for New Technologies, Energy and Sustainable Economic Development) Casaccia Research Center, Technical Unit for Sustainable Development and Innovation of Agro-Industrial System, Rome, Italy;Laboratory of Microbial and Molecular Evolution, Department of Biology, University of Florence, Florence, Italy;Laboratory of Microbial and Molecular Evolution, Department of Biology, University of Florence, Florence, Italy;Dipartimento di Agraria, University of Sassari, Sassari, Italy;Laboratory of Microbial and Molecular Evolution, Department of Biology, University of Florence, Florence, Italy;Consiglio per la Ricerca e la Sperimentazione in Agricoltura - Research Centre for the Soil-Plant System, Rome, Italy;ENEA (Italian National Agency for New Technologies, Energy and Sustainable Economic Development) Casaccia Research Center, Technical Unit for Sustainable Development and Innovation of Agro-Industrial System, Rome, Italy

Recommended Citation:
Annamaria Bevivino,Patrizia Paganin,Giovanni Bacci,et al. Soil Bacterial Community Response to Differences in Agricultural Management along with Seasonal Changes in a Mediterranean Region[J]. PLOS ONE,2014-01-01,9(8)
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