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首页> 外文期刊>International Journal of Genomics >The Endophytic Bacterial Microbiota Associated with Sweet Sorghum (Sorghum bicolor) Is Modulated by the Application of Chemical N Fertilizer to the Field
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The Endophytic Bacterial Microbiota Associated with Sweet Sorghum (Sorghum bicolor) Is Modulated by the Application of Chemical N Fertilizer to the Field

机译：与甜高粱（高粱双子）相关的内生细菌微生物群通过在田间的应用中的应用来调节肥料

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摘要

Sweet sorghum (Sorghum bicolor) is a multipurpose crop used as a feedstock to produce bioethanol, sugar, energy, and animal feed. However, it requires high levels of N fertilizer application to achieve the optimal growth, which causes environmental degradation. Bacterial endophytes, which live inside plant tissues, play a key role in the health and productivity of their host. This particular community may be influenced by different agronomical practices. The aim of the work was to evaluate the effects of N fertilization on the structure, diversity, abundance, and composition of endophytic and diazotrophic bacterial community associated with field-grown sweet sorghum. PCR-DGGE, quantitative PCR, and high-throughput sequencing were performed based onthe amplification of rrs and nifH genes. The ievel of N fertilization affected the structure and abundance but not the diversity of the endophytic bacterial communities associated with sweet sorghum plants. This effect was pronounced in the roots of bothbacterial communities analyzed and may depend on the physiological state of the plants. Specific bacterial classes and genera increased or decreased when the fertilizer was applied. The data obtained here contribute to a better understanding on the effects of agronomical practices on the microbiota associated with this important crop, with the aim to improve its sustainability.
机译：甜高粱（高粱双色）是一种多功能作物，用作生产生物乙醇，糖，能量和动物饲料的原料。然而，它需要高水平的N肥料应用来实现最佳的增长，这导致环境退化。生活在植物组织内的细菌内心细胞在其宿主的健康和生产力方面发挥着关键作用。这个特殊的社区可能受到不同农业实践的影响。该工作的目的是评估N施肥对与野外甜高粱相关的内生细菌和虚拟细菌群落的结构，多样性，丰度和组成的影响。基于RRS和NiFH基因的扩增进行PCR-DGGE，定量PCR和高通量测序。 N施肥的IEvel影响了与甜高粱植物相关的内生细菌社区的结构和丰度。在分析的双杆菌社区的根系中发出了这种效果，并且可能取决于植物的生理状态。当施用肥料时，特定的细菌类和白身增加或减少。这里获得的数据有助于更好地了解农艺实践对与这一重要作物相关的微生物群的影响，旨在提高其可持续性。

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  • 来源
    《International Journal of Genomics》 |2018年第2期|共10页
  • 作者

    Cintia Mareque; Thais Freitas da Silva; Renata Estebanez Vollu;

  • 作者单位

    Departamento de Bioqutmica y Genomica Microbianas Instituto de Investigaciones Biologica Clemente Estable Avenida Italia 3318 Montevideo 11600 Uruguay;

    Laboratorio de Genetica Microbiana Instituto de Microbiologia Paulo de Goes Universidade Federal do Rio de Janeiro (UFRJ) Rio de Janeiro Brazil;

    Laboratorio de Genetica Microbiana Instituto de Microbiologia Paulo de Goes Universidade Federal do Rio de Janeiro (UFRJ) Rio de Janeiro Brazil;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 分子生物学;
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