Sun , H , Santalahti , M , Pumpanen , J , Köster , K , Berninger , F , Raffaello , T , Asiegbu , F O & Heinonsalo , J 2016 , ' Bacterial community structure and function shift across a northern boreal forest fire chronosequence ' , Scientific Reports , vol. 6 , 32411 . https://doi.org/10.1038/srep32411
Title: | Bacterial community structure and function shift across a northern boreal forest fire chronosequence |
Author: | Sun, Hui; Santalahti, Minna; Pumpanen, Jukka; Köster, Kajar; Berninger, Frank; Raffaello, Tommaso; Asiegbu, Fred O.; Heinonsalo, Jussi |
Contributor organization: | Department of Food and Nutrition Department of Forest Sciences Frederick Asiegbu / Principal Investigator Resarch Group of Annele Hatakka Jussi Heinonsalo / Principal Investigator Viikki Plant Science Centre (ViPS) Ecosystem processes (INAR Forest Sciences) Methane and nitrous oxide exchange of forests Forest Soil Science and Biogeochemistry Forest Ecology and Management |
Date: | 2016-08-30 |
Language: | eng |
Number of pages: | 12 |
Belongs to series: | Scientific Reports |
ISSN: | 2045-2322 |
DOI: | https://doi.org/10.1038/srep32411 |
URI: | http://hdl.handle.net/10138/167380 |
Abstract: | Soil microbial responses to fire are likely to change over the course of forest recovery. Investigations on long-term changes in bacterial dynamics following fire are rare. We characterized the soil bacterial communities across three different times post fire in a 2 to 152-year fire chronosequence by Illumina MiSeq sequencing, coupled with a functional gene array (GeoChip). The results showed that the bacterial diversity did not differ between the recently and older burned areas, suggesting a concomitant recovery in the bacterial diversity after fire. The differences in bacterial communities over time were mainly driven by the rare operational taxonomic units (OTUs <0.1%). Proteobacteria (39%), Acidobacteria (34%) and Actinobacteria (17%) were the most abundant phyla across all sites. Genes involved in C and N cycling pathways were present in all sites showing high redundancy in the gene profiles. However, hierarchical cluster analysis using gene signal intensity revealed that the sites with different fire histories formed separate clusters, suggesting potential differences in maintaining essential biogeochemical soil processes. Soil temperature, pH and water contents were the most important factors in shaping the bacterial community structures and function. This study provides functional insight on the impact of fire disturbance on soil bacterial community. |
Subject: |
SOIL FUNGAL COMMUNITIES
EXTRACELLULAR ENZYME-ACTIVITIES MICROBIAL COMMUNITY RAIN-FOREST WILDFIRE DIVERSITY PH GEOCHIP LITTER AVAILABILITY 4112 Forestry |
Peer reviewed: | Yes |
Rights: | cc_by |
Usage restriction: | openAccess |
Self-archived version: | publishedVersion |
Total number of downloads: Loading...
Files | Size | Format | View |
---|---|---|---|
srepart32411.pdf | 988.5Kb |
View/ |