Journal ArticleDOI
Rhizosphere microbial community and its response to plant species and soil history
TLDR
The results obtained in this study demonstrate clearly that plant species and soil type are two important factors affecting the structure of total bacterial, Pseudomonas and Bacillus community.Abstract:
The plant rhizosphere is a dynamic environment in which many parameters may influence the population structure, diversity and activity of the microbial community. Two important factors determining the structure of microbial community present in the vicinity of plant roots are plant species and soil type. In the present study we assessed the structure of microbial communities in response to four plant species (i.e. maize (Zea mays L.), oat (Avena sativa L.), barley (Hordeum vulgare L.) and commercial grass mix) planted in soil with different land use history (i.e. arable land under crop rotation, maize monoculture and permanent grassland). Both factors, plant species and land use history, showed clear effects on microbial community and diversity as determined by PCR-DGGE fingerprinting with universal and group-specific bacterial primers. Moreover, we explored the rhizosphere effect of these plant species on the abundance of bacterial antagonists of the potato pathogen Rhizoctonia solani AG3. The data showed that the abundance and taxonomic composition of antagonists differed clearly between the different plants. The highest percentages of antagonists were found in maize and grass rhizosphere. When antagonistic Pseudomonas populations were compared, the highest, abundance and diversity of antagonists were detected in barley and oat rhizospheres, as compared to maize and grass rhizosphere. The results obtained in our study demonstrate clearly that plant species and soil type are two important factors affecting the structure of total bacterial, Pseudomonas and Bacillus community.read more
Citations
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Journal ArticleDOI
The rhizosphere microbiome and plant health
TL;DR: In this article, the authors discuss evidence that upon pathogen or insect attack, plants are able to recruit protective microorganisms, and enhance microbial activity to suppress pathogens in the rhizosphere.
Journal ArticleDOI
Going back to the roots: the microbial ecology of the rhizosphere.
TL;DR: Recent developments in rhizosphere research are discussed in relation to assessing the contribution of the micro- and macroflora to sustainable agriculture, nature conservation, the development of bio-energy crops and the mitigation of climate change.
Journal ArticleDOI
The rhizosphere revisited: root microbiomics
Peter A. H. M. Bakker,Roeland L. Berendsen,Rogier F. Doornbos,Paul C. A. Wintermans,Corné M. J. Pieterse +4 more
TL;DR: The rhizosphere microbiome of Arabidopsis thaliana is currently being studied for the obvious reason that it allows the use of the extensive toolbox that comes with this model plant.
Journal ArticleDOI
Beneficial Microbes Affect Endogenous Mechanisms Controlling Root Development
TL;DR: This review focuses on contextualizing root developmental changes elicited by PGPR in light of the understanding of plant-microbe interactions and root developmental biology.
Journal ArticleDOI
Changes in the Bacterial Community of Soybean Rhizospheres during Growth in the Field
TL;DR: Analysis of operational taxonomic units showed that the bacterial communities of the rhizosphere changed significantly during growth, with a higher abundance of potential plant growth promoting rhizobacteria, including Bacillus, Bradyrhizobium, and Rhizobrium, in a stage-specific manner.
References
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Book
Molecular Cloning: A Laboratory Manual
TL;DR: Molecular Cloning has served as the foundation of technical expertise in labs worldwide for 30 years as mentioned in this paper and has been so popular, or so influential, that no other manual has been more widely used and influential.
Journal ArticleDOI
Analysis of Actinomycete Communities by Specific Amplification of Genes Encoding 16S rRNA and Gel-Electrophoretic Separation in Denaturing Gradients
TL;DR: A group-specific primer, F243 (positions 226 to 243, Escherichia coli numbering), was developed by comparison of sequences of genes encoding 16S rRNA for the detection of actinomycetes in the environment with PCR and temperature or denaturing gradient gel electrophoresis (TGGE or DGGE, respectively).
Journal ArticleDOI
Microbial diversity in soil: Selection of microbial populations by plant and soil type and implications for disease suppressiveness
TL;DR: This review focuses on recent data relating how plant type, soil type, and soil management regime affect the microbial diversity of soil and the implication for the soil's disease suppressiveness.
Journal ArticleDOI
Selective influence of plant species on microbial diversity in the rhizosphere
TL;DR: Isolation and enumeration of culturable organisms from these soils confirmed the stimulatory effect of the rhizosphere on microbial growth and in particular pseudomonad proliferation.
Journal ArticleDOI
Bulk and rhizosphere soil bacterial communities studied by denaturing gradient gel electrophoresis: plant-dependent enrichment and seasonal shifts revealed.
Kornelia Smalla,Gabriele Wieland,Arno Buchner,A. Zock,J. Parzy,S. Kaiser,N. Roskot,Holger Heuer,Gabriele Berg +8 more
TL;DR: The DGGE fingerprints showed plant-dependent shifts in the relative abundance of bacterial populations in the rhizosphere which became more pronounced in the second year, and 6 out of 10 bands resembled gram-positive bacteria.
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