Development of bacterial communities in biological soil crusts along a revegetation chronosequence in the Tengger Desert, northwest China release_ovsig746ajaedgetp5afzifz3u

by Lichao Liu, Yubing Liu, Peng Zhang, Guang Song, Rong Hui, Zengru Wang, Jin Wang

Published in Biogeosciences by Copernicus GmbH.

2017   Volume 14, Issue 16, p3801-3814

Abstract

<strong>Abstract.</strong> Knowledge of structure and function of microbial communities in different successional stages of biological soil crusts (BSCs) is still scarce for desert areas. In this study, Illumina MiSeq sequencing was used to assess the compositional changes of bacterial communities in different ages of BSCs in the revegetation of Shapotou in the Tengger Desert. The most dominant phyla of bacterial communities shifted with the changed types of BSCs in the successional stages, from Firmicutes in mobile sand and physical crusts to Actinobacteria and Proteobacteria in BSCs, and the most dominant genera shifted from <i>Bacillus</i>, <i>Enterococcus</i> and <i>Lactococcus</i> to RB41_norank and JG34-KF-361_norank. Alpha diversity and quantitative real-time polymerase chain reaction (PCR) analysis indicated that bacterial richness and abundance reached their highest levels after 15 years of BSC development. Redundancy analysis showed that silt<span class="thinspace"></span>+<span class="thinspace"></span>clay content and total K were the prime determinants of the bacterial communities of BSCs. The results suggested that bacterial communities of BSCs recovered quickly with the improved soil physicochemical properties in the early stages of BSC succession. Changes in the bacterial community structure may be an important indicator in the biogeochemical cycling and nutrient storage in early successional stages of BSCs in desert ecosystems.
In application/xml+jats format

Archived Files and Locations

application/pdf  3.0 MB
file_ac2xh3k5hncenpopubobx7qz6y
www.biogeosciences.net (web)
web.archive.org (webarchive)
Read Archived PDF
Preserved and Accessible
Type  article-journal
Stage   published
Date   2017-08-23
Language   en ?
Container Metadata
Open Access Publication
In DOAJ
In ISSN ROAD
In Keepers Registry
ISSN-L:  1726-4170
Work Entity
access all versions, variants, and formats of this works (eg, pre-prints)
Catalog Record
Revision: f0615f76-a85e-4747-ba23-40386d4701b7
API URL: JSON