Linking soil bacterial biodiversity and soil carbon stability

Rebecca L. Mau, Cindy M. Liu, Maliha Aziz, Egbert Schwartz, Paul Dijkstra, Jane C Marks, Lance B. Price, Paul S Keim, Bruce A Hungate

Research output: Contribution to journalArticle

60 Citations (Scopus)

Abstract

Native soil carbon (C) can be lost in response to fresh C inputs, a phenomenon observed for decades yet still not understood. Using dual-stable isotope probing, we show that changes in the diversity and composition of two functional bacterial groups occur with this 'priming' effect. A single-substrate pulse suppressed native soil C loss and reduced bacterial diversity, whereas repeated substrate pulses stimulated native soil C loss and increased diversity. Increased diversity after repeated C amendments contrasts with resource competition theory, and may be explained by increased predation as evidenced by a decrease in bacterial 16S rRNA gene copies. Our results suggest that biodiversity and composition of the soil microbial community change in concert with its functioning, with consequences for native soil C stability.

Original languageEnglish (US)
Pages (from-to)1477-1480
Number of pages4
JournalISME Journal
Volume9
Issue number6
DOIs
StatePublished - Jun 23 2015

Fingerprint

Biodiversity
soil carbon
Soil
Carbon
biodiversity
carbon
soil
substrate
microbial community
stable isotope
rRNA Genes
Isotopes
predation
stable isotopes
microbial communities
ribosomal RNA
gene
resource
genes
loss

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Microbiology

Cite this

Linking soil bacterial biodiversity and soil carbon stability. / Mau, Rebecca L.; Liu, Cindy M.; Aziz, Maliha; Schwartz, Egbert; Dijkstra, Paul; Marks, Jane C; Price, Lance B.; Keim, Paul S; Hungate, Bruce A.

In: ISME Journal, Vol. 9, No. 6, 23.06.2015, p. 1477-1480.

Research output: Contribution to journalArticle

Mau, Rebecca L. ; Liu, Cindy M. ; Aziz, Maliha ; Schwartz, Egbert ; Dijkstra, Paul ; Marks, Jane C ; Price, Lance B. ; Keim, Paul S ; Hungate, Bruce A. / Linking soil bacterial biodiversity and soil carbon stability. In: ISME Journal. 2015 ; Vol. 9, No. 6. pp. 1477-1480.
@article{526b531c70f04d17a25324d402701bed,
title = "Linking soil bacterial biodiversity and soil carbon stability",
abstract = "Native soil carbon (C) can be lost in response to fresh C inputs, a phenomenon observed for decades yet still not understood. Using dual-stable isotope probing, we show that changes in the diversity and composition of two functional bacterial groups occur with this 'priming' effect. A single-substrate pulse suppressed native soil C loss and reduced bacterial diversity, whereas repeated substrate pulses stimulated native soil C loss and increased diversity. Increased diversity after repeated C amendments contrasts with resource competition theory, and may be explained by increased predation as evidenced by a decrease in bacterial 16S rRNA gene copies. Our results suggest that biodiversity and composition of the soil microbial community change in concert with its functioning, with consequences for native soil C stability.",
author = "Mau, {Rebecca L.} and Liu, {Cindy M.} and Maliha Aziz and Egbert Schwartz and Paul Dijkstra and Marks, {Jane C} and Price, {Lance B.} and Keim, {Paul S} and Hungate, {Bruce A}",
year = "2015",
month = "6",
day = "23",
doi = "10.1038/ismej.2014.205",
language = "English (US)",
volume = "9",
pages = "1477--1480",
journal = "ISME Journal",
issn = "1751-7362",
publisher = "Nature Publishing Group",
number = "6",

}

TY - JOUR

T1 - Linking soil bacterial biodiversity and soil carbon stability

AU - Mau, Rebecca L.

AU - Liu, Cindy M.

AU - Aziz, Maliha

AU - Schwartz, Egbert

AU - Dijkstra, Paul

AU - Marks, Jane C

AU - Price, Lance B.

AU - Keim, Paul S

AU - Hungate, Bruce A

PY - 2015/6/23

Y1 - 2015/6/23

N2 - Native soil carbon (C) can be lost in response to fresh C inputs, a phenomenon observed for decades yet still not understood. Using dual-stable isotope probing, we show that changes in the diversity and composition of two functional bacterial groups occur with this 'priming' effect. A single-substrate pulse suppressed native soil C loss and reduced bacterial diversity, whereas repeated substrate pulses stimulated native soil C loss and increased diversity. Increased diversity after repeated C amendments contrasts with resource competition theory, and may be explained by increased predation as evidenced by a decrease in bacterial 16S rRNA gene copies. Our results suggest that biodiversity and composition of the soil microbial community change in concert with its functioning, with consequences for native soil C stability.

AB - Native soil carbon (C) can be lost in response to fresh C inputs, a phenomenon observed for decades yet still not understood. Using dual-stable isotope probing, we show that changes in the diversity and composition of two functional bacterial groups occur with this 'priming' effect. A single-substrate pulse suppressed native soil C loss and reduced bacterial diversity, whereas repeated substrate pulses stimulated native soil C loss and increased diversity. Increased diversity after repeated C amendments contrasts with resource competition theory, and may be explained by increased predation as evidenced by a decrease in bacterial 16S rRNA gene copies. Our results suggest that biodiversity and composition of the soil microbial community change in concert with its functioning, with consequences for native soil C stability.

UR - http://www.scopus.com/inward/record.url?scp=84929655410&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84929655410&partnerID=8YFLogxK

U2 - 10.1038/ismej.2014.205

DO - 10.1038/ismej.2014.205

M3 - Article

C2 - 25350158

AN - SCOPUS:84929655410

VL - 9

SP - 1477

EP - 1480

JO - ISME Journal

JF - ISME Journal

SN - 1751-7362

IS - 6

ER -