Biochemical cycling in the rhizosphere having an impact on global change

L. Philippot, S. Hallin, G. Borjesson, E. M. Baggs

Research output: Contribution to journalLiterature reviewpeer-review

179 Citations (Scopus)


Changes in chemical properties in soil around plant roots influence many microbial processes, including those having an impact on greenhouse gas emissions. To potentially mitigate these emissions according to the Kyoto protocol, knowledge about how and where these gases are produced and consumed in soils is required. In this review, we focus on the greenhouse gases nitrous oxide and methane, which are produced by nitrifying and denitrifying prokaryotes and methanogenic archaea, respectively. After describing the microbial processes involved in production and consumption of nitrous oxide and methane and how they can be affected in the rhizosphere, we give an overview of nitrous oxide and methane emissions from the rhizosphere and soils and sediments with plants. We also discuss strategies to mitigate emissions from the rhizosphere and consider possibilities for carbon sequestration.

Original languageEnglish
Pages (from-to)61-81
Number of pages21
JournalPlant and Soil
Issue number1
Publication statusPublished - Aug 2009


  • nitrifiers
  • denitrifiers
  • methanogens
  • methanotrophs
  • greenhouse gas
  • rhizosphere
  • nitrous-oxide emissions
  • ammonia-oxidizing bacteria
  • nitrate-reducing community
  • elevated atmospheric CO2
  • soil organic-matter
  • air-filled porosity
  • flooded rice fields
  • radial oxygen loss
  • methane emissions
  • carbon sequestration


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