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Landscape position influences microbial composition and function via redistribution of soil water across a watershed.

Publication ,  Journal Article
Du, Z; Riveros-Iregui, DA; Jones, RT; McDermott, TR; Dore, JE; McGlynn, BL; Emanuel, RE; Li, X
Published in: Applied and environmental microbiology
December 2015

Subalpine forest ecosystems influence global carbon cycling. However, little is known about the compositions of their soil microbial communities and how these may vary with soil environmental conditions. The goal of this study was to characterize the soil microbial communities in a subalpine forest watershed in central Montana (Stringer Creek Watershed within the Tenderfoot Creek Experimental Forest) and to investigate their relationships with environmental conditions and soil carbonaceous gases. As assessed by tagged Illumina sequencing of the 16S rRNA gene, community composition and structure differed significantly among three landscape positions: high upland zones (HUZ), low upland zones (LUZ), and riparian zones (RZ). Soil depth effects on phylogenetic diversity and β-diversity varied across landscape positions, being more evident in RZ than in HUZ. Mantel tests revealed significant correlations between microbial community assembly patterns and the soil environmental factors tested (water content, temperature, oxygen, and pH) and soil carbonaceous gases (carbon dioxide concentration and efflux and methane concentration). With one exception, methanogens were detected only in RZ soils. In contrast, methanotrophs were detected in all three landscape positions. Type I methanotrophs dominated RZ soils, while type II methanotrophs dominated LUZ and HUZ soils. The relative abundances of methanotroph populations correlated positively with soil water content (R = 0.72, P < 0.001) and negatively with soil oxygen (R = -0.53, P = 0.008). Our results suggest the coherence of soil microbial communities within and differences in communities between landscape positions in a subalpine forested watershed that reflect historical and contemporary environmental conditions.

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Published In

Applied and environmental microbiology

DOI

EISSN

1098-5336

ISSN

0099-2240

Publication Date

December 2015

Volume

81

Issue

24

Start / End Page

8457 / 8468

Related Subject Headings

  • Water Microbiology
  • United States
  • Soil Microbiology
  • Sequence Analysis, DNA
  • RNA, Ribosomal, 16S
  • Phylogeny
  • Oxygen
  • Montana
  • Molecular Sequence Data
  • Microbiology
 

Citation

APA
Chicago
ICMJE
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Du, Z., Riveros-Iregui, D. A., Jones, R. T., McDermott, T. R., Dore, J. E., McGlynn, B. L., … Li, X. (2015). Landscape position influences microbial composition and function via redistribution of soil water across a watershed. Applied and Environmental Microbiology, 81(24), 8457–8468. https://doi.org/10.1128/aem.02643-15
Du, Zhe, Diego A. Riveros-Iregui, Ryan T. Jones, Timothy R. McDermott, John E. Dore, Brian L. McGlynn, Ryan E. Emanuel, and Xu Li. “Landscape position influences microbial composition and function via redistribution of soil water across a watershed.Applied and Environmental Microbiology 81, no. 24 (December 2015): 8457–68. https://doi.org/10.1128/aem.02643-15.
Du Z, Riveros-Iregui DA, Jones RT, McDermott TR, Dore JE, McGlynn BL, et al. Landscape position influences microbial composition and function via redistribution of soil water across a watershed. Applied and environmental microbiology. 2015 Dec;81(24):8457–68.
Du, Zhe, et al. “Landscape position influences microbial composition and function via redistribution of soil water across a watershed.Applied and Environmental Microbiology, vol. 81, no. 24, Dec. 2015, pp. 8457–68. Epmc, doi:10.1128/aem.02643-15.
Du Z, Riveros-Iregui DA, Jones RT, McDermott TR, Dore JE, McGlynn BL, Emanuel RE, Li X. Landscape position influences microbial composition and function via redistribution of soil water across a watershed. Applied and environmental microbiology. 2015 Dec;81(24):8457–8468.

Published In

Applied and environmental microbiology

DOI

EISSN

1098-5336

ISSN

0099-2240

Publication Date

December 2015

Volume

81

Issue

24

Start / End Page

8457 / 8468

Related Subject Headings

  • Water Microbiology
  • United States
  • Soil Microbiology
  • Sequence Analysis, DNA
  • RNA, Ribosomal, 16S
  • Phylogeny
  • Oxygen
  • Montana
  • Molecular Sequence Data
  • Microbiology