Elevated CO2 causes a change in microbial communities of rhizosphere and bulk soil of salt marsh system

Seung Hoon Lee, Hojeong Kang

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Using TRFLP and real-time qPCR, this study aimed to investigate the way elevated CO2 (eCO2) affects bacteria, fungi, archaea, and sulfate-reducing bacteria in salt marsh systems containing halophyte Suaeda japonica. Moreover, it also aimed to evaluate the effects of eCO2 in terms of plant interaction by analyzing the rhizosphere and bulk soil separately. We observed that the gene abundance and community structures were affected by eCO2, and the rhizosphere and bulk soil communities showed a different response. The rhizospheric microbes responded to eCO2 more strongly than the bulk soil microbes. The results also showed that the sulfate-reducing bacteria (SRB) community was more sensitive to eCO2 than the general bacterial community. In addition, the findings suggested that bacteria and archaea competed severely when exposed to eCO2, which caused a dominance of bacteria over archaea or the co-presence of bacteria and archaea with a different micro-niche. Overall, eCO2 caused a strong change in the microbial community in salt marsh with halophytes, but the overall functional activity of the microbial community was unchanged and balanced by the different response patterns of the bacterial, fungal, and archaeal communities in our system.

Original languageEnglish
Pages (from-to)307-314
Number of pages8
JournalApplied Soil Ecology
Volume108
DOIs
Publication statusPublished - 2016 Dec 1

Fingerprint

salt marsh soils
Rhizosphere
Wetlands
Archaea
saltmarsh
microbial communities
rhizosphere
microbial community
Soil
Salts
Bacteria
sulfate-reducing bacteria
bacterium
bacteria
sulfate-reducing bacterium
salt marshes
soil
halophyte
Suaeda
halophytes

All Science Journal Classification (ASJC) codes

  • Ecology
  • Agricultural and Biological Sciences (miscellaneous)
  • Soil Science

Cite this

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Elevated CO2 causes a change in microbial communities of rhizosphere and bulk soil of salt marsh system. / Lee, Seung Hoon; Kang, Hojeong.

In: Applied Soil Ecology, Vol. 108, 01.12.2016, p. 307-314.

Research output: Contribution to journalArticle

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