What is it about?
In this research, we analyzed the diversity and abundance of CO2-fixing and CO-oxidizing bacteria in three typical natural soils, i.e., from wetland (WL), grassland (GR), and natural forest (FO), which are important carbon sinks in terrestrial ecosystems.We hypothesized that the physiological strategies for autotrophic microbial growth in these soils vary depending on biogeochemical factors.
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Why is it important?
After 15 days of continuous labeling with 14C-CO2, the amount of labeled C incorporated into the microbial biomass in the three soil types was measured.We also evaluated the diversity and abundance of CO2-fixing and CO-oxidizing bacteria by quantitative-PCR (Q-PCR), cloning, sequencing, and terminal restriction fragment length polymorphism (T-RFLP) analysis of cbbL and coxL genes and used this information to estimate the genetic potential of microbial carbon fixation in each ecosystem. Soil physicochemical properties were also examined to identify key factors shaping the microbial diversity in these soils.
Perspectives
Our findings provide insight into the ecological roles of the soil autotrophs in soil CO2 dynamics and CO-oxidizing communities in natural soils.
Tin Mar Lynn
Read the Original
This page is a summary of: Influence of land use on bacterial and archaeal diversity and community structures in three natural ecosystems and one agricultural soil, Archives of Microbiology, February 2017, Springer Science + Business Media,
DOI: 10.1007/s00203-017-1347-4.
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