The succession pattern of soil microbial communities and its relationship with tobacco bacterial wilt
Autor: | Jiaojiao Niu, Huaqun Yin, Zhongwen Rang, Feng Tian, Wu Chen, Linjian Dai, Chao Zhang |
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Rok vydání: | 2016 |
Předmět: |
Crops
Agricultural DNA Bacterial 0301 basic medicine Microbiology (medical) Microbial Consortia 030106 microbiology Biodiversity Biology Succession mechanism Zea mays Microbiology Crop Soil 03 medical and health sciences Crop health Molecular ecological network RNA Ribosomal 16S Soil pH Tobacco Soil ecology Phylogeny Soil Microbiology Plant Diseases Bacteria Base Sequence Ecology Bacterial wilt Illumina sequencing food and beverages Agriculture biology.organism_classification Soil microbial communities Crop Production 030104 developmental biology Agronomy Rotation system Microbial Interactions Cultivation of tobacco Research Article Acidobacteria |
Zdroj: | BMC Microbiology |
ISSN: | 1471-2180 |
Popis: | Background The interaction mechanism between crop and soil microbial communities is a key issue in both agriculture and soil ecology. However, how soil microbial communities respond to crop planting and ultimately affect crop health still remain unclear. In this research, we explored how soil microbial communities shifted during tobacco cultivation under different rotation systems (control, maize rotation, lily rotation and turnip rotation). Results Our analyses showed that soil microbial communities had a general response pattern to tobacco planting, as the abundances of Proteobacteria and Planctomycetes increased while Acidobacteria and Verrucomicrobia decreased during tobacco cultivation, no matter which rotation system was adopted. Notably, tobacco decreased the diversity and co-occurrence of soil microorganisms, but maize rotation might suppress tobacco bacterial wilt by alleviating the decrease in biodiversity and co-occurrence. Molecular ecological network analysis indicated that there was stronger competition between potential disease suppressive (e.g., Acidobacteria) and inducible bacteria (e.g., Chloroflexi) in maize rotation systems. Both soil properties (e.g., pH, Ca content) and microbial communities of tobacco mature period depended on their counterparts of fallow period, and all these factors shaped tobacco disease comprehensively. Conclusions Both soil microbial communities of fallow stage and tobacco selection shaped the communities of tobacco mature stage. And effective rotation crop (maize) could decrease the incidence of tobacco bacterial wilt by alleviating the decrease in diversity and co-occurrences of microbial populations. This study would deepen our understanding about succession mechanism of soil microbial communities during crop cultivation and their relationship with crop health. Electronic supplementary material The online version of this article (doi:10.1186/s12866-016-0845-x) contains supplementary material, which is available to authorized users. |
Databáze: | OpenAIRE |
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