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Microbial volatile compounds alter the soil microbial community.

Jun Yuan1, Mengli Zhao1, Rong Li1

  • 1Jiangsu Provincial Key Laboratory of Organic Solid Waste Utilization, Jiangsu Collaborative Innovation Center for Organic Solid Waste Utilization, and National Engineering Research Center for Organic-based Fertilizer, Nanjing Agricultural University, Nanjing, 210095, China.

Environmental Science and Pollution Research International
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PubMed
Summary
This summary is machine-generated.

Volatile organic compounds (VOCs) from soil bacteria alter microbial communities. These bacterial VOCs impact soil bacteria and fungi composition, diversity, and biomass.

Keywords:
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Area of Science:

  • Microbiology
  • Soil Science
  • Environmental Science

Background:

  • Soil microorganisms interact through volatile organic compounds (VOCs).
  • The impact of bacterial VOCs on soil microbial communities remains understudied.

Purpose of the Study:

  • To investigate the effects of Bacillus amyloliquefaciens NJN-6 VOCs on soil microbial community composition and function.

Main Methods:

  • Bacillus amyloliquefaciens NJN-6 cultured on modified MS medium.
  • Volatile compounds identified using solid-phase microextraction-GC/MS.
  • Soil microbial community analysis via MiSeq sequencing and qPCR.

Main Results:

  • Bacterial VOCs altered soil bacterial and fungal community composition, decreasing alpha-diversity.
  • Increased relative abundance of Proteobacteria, Bacteroidetes, Firmicutes, and Ascomycota observed.
  • VOCs reduced fungal biomass while increasing bacterial biomass and altered functional gene abundance (nifH, nirS, ammonium-oxidizing bacteria gene).

Conclusions:

  • Bacterial VOCs significantly influence soil microbial community structure and function.
  • VOCs play a crucial role in mediating soil microbial interactions and biogeochemical processes.