Journal ArticleDOI
Land-use history has a stronger impact on soil microbial community composition than aboveground vegetation and soil properties
Kamlesh Jangid,Mark A. Williams,Alan J. Franzluebbers,Thomas M. Schmidt,David C. Coleman,William B. Whitman +5 more
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TLDR
History of land-use was a stronger determinant of the composition of microbial communities than vegetation and soil properties, and microbial communities in disturbed soils apparently return to their native state with time.Abstract:
The response of soil microbial communities following changes in land-use is governed by multiple factors. The objectives of this study were to investigate (i) whether soil microbial communities track the changes in aboveground vegetation during succession; and (ii) whether microbial communities return to their native state over time. Two successional gradients with different vegetation were studied at the W. K. Kellogg Biological Station, Michigan. The first gradient comprised a conventionally tilled cropland (CT), mid-succession forest (SF) abandoned from cultivation prior to 1951, and native deciduous forest (DF). The second gradient comprised the CT cropland, early-succession grassland (ES) restored in 1989, and long-term mowed grassland (MG). With succession, the total microbial PLFAs and soil microbial biomass C consistently increased in both gradients. While bacterial rRNA gene diversity remained unchanged, the abundance and composition of many bacterial phyla changed significantly. Moreover, microbial communities in the relatively pristine DF and MG soils were very similar despite major differences in soil properties and vegetation. After >50 years of succession, and despite different vegetation, microbial communities in SF were more similar to those in mature DF than in CT. In contrast, even after 17 years of succession, microbial communities in ES were more similar to CT than endpoint MG despite very different vegetation between CT and ES. This result suggested a lasting impact of cultivation history on the soil microbial community. With conversion of deciduous to conifer forest (CF), there was a significant change in multiple soil properties that correlated with changes in microbial biomass, rRNA gene diversity and community composition. In conclusion, history of land-use was a stronger determinant of the composition of microbial communities than vegetation and soil properties. Further, microbial communities in disturbed soils apparently return to their native state with time.read more
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Journal ArticleDOI
Plant microbiome–an account of the factors that shape community composition and diversity
Khondoker M. G. Dastogeer,Farzana Haque Tumpa,Afruja Sultana,Mst Arjina Akter,Anindita Chakraborty +4 more
TL;DR: Current insights into the factors driving the assembly of plant microbial communities are discussed and the literature on the driving factors for the composition and community structuring of plant microbiomes is compiled.
Journal ArticleDOI
Soil aggregate size mediates the impacts of cropping regimes on soil carbon and microbial communities
Pankaj Trivedi,Ian J. Rochester,Chanda Trivedi,Joy D. Van Nostrand,Jizhong Zhou,Senani Karunaratne,Ian C. Anderson,Brajesh K. Singh +7 more
TL;DR: The results suggest that long term crop management practices influence the structural and functional potential of soil microbial communities and the impact of crop rotations on soil C turnover varies between different sized soil aggregates.
Journal ArticleDOI
Soil Properties Drive Microbial Community Structure in a Large Scale Transect in South Eastern Australia.
TL;DR: It is revealed that soil microbes along a 1000 km transect have unique spatial structures that are governed mainly by soil properties, which contributed the most to the microbial distribution, while other environmental factors showed lesser impact.
Journal ArticleDOI
Shifts in microbial diversity through land use intensity as drivers of carbon mineralization in soil
Vincent Tardy,Aymé Spor,Olivier Mathieu,Jean Lévêque,Sébastien Terrat,Pierre Plassart,Tiffanie Regnier,Richard D. Bardgett,Wim H. van der Putten,Pier Paolo Roggero,Giovanna Seddaiu,Simonetta Bagella,Philippe Lemanceau,Lionel Ranjard,Pierre-Alain Maron +14 more
TL;DR: The impact of land management intensity on soil microbial diversity (i.e. richness and evenness) and consequences for functioning is still poorly understood by coupling molecular characterization of microbial diversity with measurements of carbon mineralization in soils obtained from three locations across Europe as mentioned in this paper.
Journal ArticleDOI
Interactions among soil, plants, and microorganisms drive secondary succession in a dry environment
TL;DR: Examination of changes in soil properties and of plant and soil microbial communities across a chronosequence of abandoned arable fields evidenced that above- and below- ground secondary succession developed with similar patterns and correlated with changes in multiple ecosystem functions such as increases in above-and below-ground productivity, diversity and nutrient accumulation as plant and microbial succession progressed.
References
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Journal ArticleDOI
Greengenes, a Chimera-Checked 16S rRNA Gene Database and Workbench Compatible with ARB
Todd Z. DeSantis,Philip Hugenholtz,Neils Larsen,Mark Rojas,Eoin L. Brodie,Keith Keller,Thomas Huber,Daniel Dalevi,Ping Hu,Gary L. Andersen +9 more
TL;DR: A 16S rRNA gene database (http://greengenes.lbl.gov) was used to provide chimera screening, standard alignment, and taxonomic classification using multiple published taxonomies as mentioned in this paper.
Journal ArticleDOI
The diversity and biogeography of soil bacterial communities
Noah Fierer,Robert B. Jackson +1 more
TL;DR: Bacterial diversity was highest in neutral soils and lower in acidic soils, with soils from the Peruvian Amazon the most acidic and least diverse in this study.
Journal ArticleDOI
Introducing DOTUR, a Computer Program for Defining Operational Taxonomic Units and Estimating Species Richness
Patrick D. Schloss,Jo Handelsman +1 more
TL;DR: A computer program, DOTUR, is developed, which assigns sequences to OTUs by using either the furthest, average, or nearest neighbor algorithm for each distance level, which addresses the challenge of assigning sequences to operational taxonomic units (OTUs) based on the genetic distances between sequences.
Journal ArticleDOI
Global patterns in bacterial diversity
Catherine A. Lozupone,Rob Knight +1 more
TL;DR: The most comprehensive analysis of the environmental distribution of bacteria to date, based on 21,752 16S rRNA sequences compiled from 111 studies of diverse physical environments, is reported in this article.
Journal ArticleDOI
The influence of soil properties on the structure of bacterial and fungal communities across land-use types
TL;DR: Soil pH was the best predictor of bacterial community composition across this landscape while fungal community composition was most closely associated with changes in soil nutrient status, suggesting specific changes in edaphic properties, not necessarily land-use type itself, may best predict shifts in microbialcommunity composition across a given landscape.
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