Environmental factors shaping the diversity of bacterial communities that promote rice production

Abstract Background Exploiting soil microorganisms in the rhizosphere of plants can significantly improve agricultural productivity; however, the mechanism by which microorganisms specifically affect agricultural productivity is poorly understood. To clarify this uncertainly, the rhizospheric microb...

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Main Authors: Zhaohui Wu, Qingshu Liu, Zhenyu Li, Wei Cheng, Jimin Sun, Zhaohui Guo, Yongmei Li, Jianqun Zhou, Delong Meng, Hongbo Li, Ping Lei, Huaqun Yin
Format: Article
Language:English
Published: BMC 2018-06-01
Series:BMC Microbiology
Subjects:
Online Access:http://link.springer.com/article/10.1186/s12866-018-1174-z
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spelling doaj-1f4c6d10ca59446693bbb75f834a85c22020-11-25T00:43:12ZengBMCBMC Microbiology1471-21802018-06-0118111110.1186/s12866-018-1174-zEnvironmental factors shaping the diversity of bacterial communities that promote rice productionZhaohui Wu0Qingshu Liu1Zhenyu Li2Wei Cheng3Jimin Sun4Zhaohui Guo5Yongmei Li6Jianqun Zhou7Delong Meng8Hongbo Li9Ping Lei10Huaqun Yin11Hunan Hybrid Rice Research Center/State Key Laboratory of Hybrid RiceHunan Institute of MicrobiologySchool of Minerals Processing and Bioengineering, Central South UniversityHunan Institute of MicrobiologyHunan Soil and Fertilizer InstituteHunan Institute of MicrobiologyHunan Institute of MicrobiologyHunan Institute of Agricultural Information and EngineeringSchool of Minerals Processing and Bioengineering, Central South UniversityLongPing Graduate Institute, Hunan UniversityHunan Institute of MicrobiologySchool of Minerals Processing and Bioengineering, Central South UniversityAbstract Background Exploiting soil microorganisms in the rhizosphere of plants can significantly improve agricultural productivity; however, the mechanism by which microorganisms specifically affect agricultural productivity is poorly understood. To clarify this uncertainly, the rhizospheric microbial communities of super rice plants at various growth stages were analysed using 16S rRNA high-throughput gene sequencing; microbial communities were then related to soil properties and rice productivity. Results The rhizospheric bacterial communities were characterized by the phyla Proteobacteria, Acidobacteria, Chloroflexi, and Verrucomicrobia during all stages of rice growth. Rice production differed by approximately 30% between high- and low-yield sites that had uniform fertilization regimes and climatic conditions, suggesting the key role of microbial communities. Mantel tests showed a strong correlation between soil conditions and rhizospheric bacterial communities, and microorganisms had different effects on crop yield. Among the four growing periods, the rhizospheric bacterial communities present during the heading stage showed a more significant correlation (p <  0.05) with crop yield, suggesting their potential in regulating crop production. The biological properties (i.e., microbes) reflected the situation of agricultural land better than the physicochemical characterics (i.e., nutrient elements), which provides theoretical support for agronomic production. Molecular ecological network (MEN) analysis suggested that differences in productivity were caused by the interaction between the soil characteristics and the bacterial communities. Conclusions During the heading stage of rice cropping, the rhizospheric microbial community is vital for the resulting rice yield. According to network analysis, the cooperative relationship (i.e., positive interaction) between between microbes may contribute significantly to yield, and the biological properties (i.e., microbes) better reflected the real conditions of agricultural land than did the physicochemical characteristics (i.e., nutrient elements).http://link.springer.com/article/10.1186/s12866-018-1174-zBacterial diversityBacterial community structureSuper hybrid rice16S rRNA pyrosequencing technologyCrop yieldSoil physicochemical properties
collection DOAJ
language English
format Article
sources DOAJ
author Zhaohui Wu
Qingshu Liu
Zhenyu Li
Wei Cheng
Jimin Sun
Zhaohui Guo
Yongmei Li
Jianqun Zhou
Delong Meng
Hongbo Li
Ping Lei
Huaqun Yin
spellingShingle Zhaohui Wu
Qingshu Liu
Zhenyu Li
Wei Cheng
Jimin Sun
Zhaohui Guo
Yongmei Li
Jianqun Zhou
Delong Meng
Hongbo Li
Ping Lei
Huaqun Yin
Environmental factors shaping the diversity of bacterial communities that promote rice production
BMC Microbiology
Bacterial diversity
Bacterial community structure
Super hybrid rice
16S rRNA pyrosequencing technology
Crop yield
Soil physicochemical properties
author_facet Zhaohui Wu
Qingshu Liu
Zhenyu Li
Wei Cheng
Jimin Sun
Zhaohui Guo
Yongmei Li
Jianqun Zhou
Delong Meng
Hongbo Li
Ping Lei
Huaqun Yin
author_sort Zhaohui Wu
title Environmental factors shaping the diversity of bacterial communities that promote rice production
title_short Environmental factors shaping the diversity of bacterial communities that promote rice production
title_full Environmental factors shaping the diversity of bacterial communities that promote rice production
title_fullStr Environmental factors shaping the diversity of bacterial communities that promote rice production
title_full_unstemmed Environmental factors shaping the diversity of bacterial communities that promote rice production
title_sort environmental factors shaping the diversity of bacterial communities that promote rice production
publisher BMC
series BMC Microbiology
issn 1471-2180
publishDate 2018-06-01
description Abstract Background Exploiting soil microorganisms in the rhizosphere of plants can significantly improve agricultural productivity; however, the mechanism by which microorganisms specifically affect agricultural productivity is poorly understood. To clarify this uncertainly, the rhizospheric microbial communities of super rice plants at various growth stages were analysed using 16S rRNA high-throughput gene sequencing; microbial communities were then related to soil properties and rice productivity. Results The rhizospheric bacterial communities were characterized by the phyla Proteobacteria, Acidobacteria, Chloroflexi, and Verrucomicrobia during all stages of rice growth. Rice production differed by approximately 30% between high- and low-yield sites that had uniform fertilization regimes and climatic conditions, suggesting the key role of microbial communities. Mantel tests showed a strong correlation between soil conditions and rhizospheric bacterial communities, and microorganisms had different effects on crop yield. Among the four growing periods, the rhizospheric bacterial communities present during the heading stage showed a more significant correlation (p <  0.05) with crop yield, suggesting their potential in regulating crop production. The biological properties (i.e., microbes) reflected the situation of agricultural land better than the physicochemical characterics (i.e., nutrient elements), which provides theoretical support for agronomic production. Molecular ecological network (MEN) analysis suggested that differences in productivity were caused by the interaction between the soil characteristics and the bacterial communities. Conclusions During the heading stage of rice cropping, the rhizospheric microbial community is vital for the resulting rice yield. According to network analysis, the cooperative relationship (i.e., positive interaction) between between microbes may contribute significantly to yield, and the biological properties (i.e., microbes) better reflected the real conditions of agricultural land than did the physicochemical characteristics (i.e., nutrient elements).
topic Bacterial diversity
Bacterial community structure
Super hybrid rice
16S rRNA pyrosequencing technology
Crop yield
Soil physicochemical properties
url http://link.springer.com/article/10.1186/s12866-018-1174-z
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