Soil productivity and structure of bacterial and fungal communities in unfertilized arable soil

Autor: Shu-ichi Sugiyama, Yoichi Adachi, Boxi Wang
Rok vydání: 2018
Předmět:
0106 biological sciences
0301 basic medicine
Fungal Structure
lcsh:Medicine
Soil Chemistry
01 natural sciences
Soil
Japan
Soil functions
Agricultural Soil Science
lcsh:Science
Phylogeny
Soil Microbiology
Principal Component Analysis
Multidisciplinary
Geography
Ecology
Microbiota
Soil chemistry
Eukaryota
Agriculture
Biodiversity
Plants
Chemistry
Agricultural soil science
Community Ecology
Experimental Organism Systems
Physical Sciences
Soil microbiology
Research Article
Farms
Nitrogen
Soil biology
Soil Science
Mycology
Research and Analysis Methods
010603 evolutionary biology
complex mixtures
03 medical and health sciences
Model Organisms
Plant and Algal Models
Environmental Chemistry
Grasses
Fertilizers
Community Structure
Analysis of Variance
Bacteria
lcsh:R
Ecology and Environmental Sciences
Fungi
Organisms
Biology and Life Sciences
Mineralization (soil science)
Carbon
Maize
030104 developmental biology
Agronomy
Soil water
lcsh:Q
Soil fertility
Zdroj: PLoS ONE
PLoS ONE, Vol 13, Iss 9, p e0204085 (2018)
ISSN: 1932-6203
Popis: Soil productivity is strongly influenced by the activities of microbial communities. However, it is not well understood how community structure, including its richness, mass, and composition, influences soil functions. We investigated the relationships between soil productivity and microbial communities in unfertilized arable soils extending over 1000 km in eastern Japan. Soil properties, including C turnover rate, N mineralization rate, microbial C, and various soil chemical properties, were measured. Soil bacterial and fungal communities were analyzed by Illumina’s MiSeq using 16S rRNA and ITS regions. In addition, root microbial communities from maize grown in each soil were also investigated. Soil bacterial communities shared many operational taxonomic units (OTUs) among farms. An ordination plot based on correspondence analysis revealed convergent distribution of soil bacterial communities across the farms, which seemed to be a result of similar agricultural management practices. Although fungal communities showed lower richness and a lower proportion of shared OTUs than bacterial communities, community structure between the farms tended to be convergent. On the other hand, root communities had lower richness and a higher abundance of specific taxa than the soil communities. Two soil functions, decomposition activity and soil productivity, were extracted by principal component analysis (PCA) based on eight soil properties. Soil productivity correlated with N mineralization rate, P2O5, and maize growth, but not with decomposition activity, which is characterized by C turnover rate, soil organic C, and microbial mass. Soil productivity showed a significant association with community composition, but not with richness and mass of soil microbial communities. Soil productivity also correlated with the abundance of several specific taxa, both in bacteria and fungi. Root communities did not show any clear correlations with soil productivity. These results demonstrate that community composition and abundance of soil microbial communities play important roles in determining soil productivity.
Databáze: OpenAIRE
Externí odkaz:
Nepřihlášeným uživatelům se plný text nezobrazuje