Soil fungal: Bacterial ratios are linked to altered carbon cycling

Ashish A. Malik* (Corresponding Author), Somak Chowdhury, Veronika Schlager, Anna Oliver, Jeremy Puissant, Perla G.M. Vazquez, Nico Jehmlich, Martin von Bergen, Robert I. Griffiths, Gerd Gleixner

*Corresponding author for this work

Research output: Contribution to journalArticle

68 Citations (Scopus)

Abstract

Despite several lines of observational evidence, there is a lack of consensus on whether higher fungal:bacterial (F:B) ratios directly cause higher soil carbon (C) storage. We employed RNA sequencing, protein profiling and isotope tracer techniques to evaluate whether differing F:B ratios are associated with differences in C storage. A mesocosm 13C labeled foliar litter decomposition experiment was performed in two soils that were similar in their physico-chemical properties but differed in microbial community structure, specifically their F:B ratio (determined by PLFA analyses, RNA sequencing and protein profiling; all three corroborating each other). Following litter addition, we observed a consistent increase in abundance of fungal phyla; and greater increases in the fungal dominated soil; implicating the role of fungi in litter decomposition. Litter derived 13C in respired CO2 was consistently lower, and residual 13C in bulk SOM was higher in high F:B soil demonstrating greater C storage potential in the F:B dominated soil. We conclude that in this soil system, the increased abundance of fungi in both soils and the altered C cycling patterns in the F:B dominated soils highlight the significant role of fungi in litter decomposition and indicate that F:B ratios are linked to higher C storage potential.

Original languageEnglish
Article number1247
Number of pages11
JournalFrontiers in Microbiology
Volume7
Issue numberAUG
DOIs
Publication statusPublished - 9 Aug 2016

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Soil
Carbon
RNA Sequence Analysis
Fungi
Isotopes
Proteins

Keywords

  • Bacteria
  • Fungi
  • Litter decomposition
  • Proteomics
  • RNA sequencing
  • Soil carbon
  • Stable isotopes

ASJC Scopus subject areas

  • Microbiology
  • Microbiology (medical)

Cite this

Malik, A. A., Chowdhury, S., Schlager, V., Oliver, A., Puissant, J., Vazquez, P. G. M., ... Gleixner, G. (2016). Soil fungal: Bacterial ratios are linked to altered carbon cycling. Frontiers in Microbiology, 7(AUG), [1247]. https://doi.org/10.3389/fmicb.2016.01247

Soil fungal : Bacterial ratios are linked to altered carbon cycling. / Malik, Ashish A. (Corresponding Author); Chowdhury, Somak; Schlager, Veronika; Oliver, Anna; Puissant, Jeremy; Vazquez, Perla G.M.; Jehmlich, Nico; von Bergen, Martin; Griffiths, Robert I.; Gleixner, Gerd.

In: Frontiers in Microbiology, Vol. 7, No. AUG, 1247, 09.08.2016.

Research output: Contribution to journalArticle

Malik, AA, Chowdhury, S, Schlager, V, Oliver, A, Puissant, J, Vazquez, PGM, Jehmlich, N, von Bergen, M, Griffiths, RI & Gleixner, G 2016, 'Soil fungal: Bacterial ratios are linked to altered carbon cycling', Frontiers in Microbiology, vol. 7, no. AUG, 1247. https://doi.org/10.3389/fmicb.2016.01247
Malik AA, Chowdhury S, Schlager V, Oliver A, Puissant J, Vazquez PGM et al. Soil fungal: Bacterial ratios are linked to altered carbon cycling. Frontiers in Microbiology. 2016 Aug 9;7(AUG). 1247. https://doi.org/10.3389/fmicb.2016.01247
Malik, Ashish A. ; Chowdhury, Somak ; Schlager, Veronika ; Oliver, Anna ; Puissant, Jeremy ; Vazquez, Perla G.M. ; Jehmlich, Nico ; von Bergen, Martin ; Griffiths, Robert I. ; Gleixner, Gerd. / Soil fungal : Bacterial ratios are linked to altered carbon cycling. In: Frontiers in Microbiology. 2016 ; Vol. 7, No. AUG.
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