Effects of temperature on the composition and diversity of bacterial communities in bamboo soils at different elevations

Abstract

Abstract. Bamboo is an important resource distributed in mountain areas in Asia. Little is known about the impact of temperature changes on bamboo soil bacterial communities. In this study, responses of bacterial communities collected at 600, 1200, and 1800 m to different incubation temperatures (15, 20, and 35 • C) were examined using barcoded pyrosequencing and soil analyses. Soil respiration was greater at higher elevation and incubation temperature. The bacterial diversity decreased after 112 days of incubation at 35 • C. Before incubation, Acidobacteria and Proteobacteria were the most abundant phyla in all communities. The relative abundance of Acidobacteria generally decreased after 112 days of incubation at the three temperatures. α-Proteobacteria showed a similar trend, while γ -Proteobacteria increased after incubation, except in samples from 1800 m incubated at 35 • C. Non-metric multi-dimensional scaling analysis revealed structural variability under different incubation times and temperatures. Principal component analysis indicated that the bacterial structure in samples incubated at 35 • C correlated with temperature and soil respiration, while structures in samples incubated at 15 and 20 • C correlated with time. These results suggest that a temperature rise could result in increasing soil respiration and soluble carbon and nitrogen consumption as well as differentially influence bacterial diversity and structure at different elevations.

Diversity of Microbial Communities of Pinus sylvestris var. mongolica at Spatial Scale

“…Banerjee et al [30] found that soil moisture effected microbial community structure more than nutrients. Similarly, the influence of geographical factors and climatic factors, such as temperature, altitude and precipitation on soil microbial diversity, has not been determined [31][32][33].…”

Coupled Thermally-Enhanced Bioremediation and Renewable Energy Storage System: Conceptual Framework and Modeling Investigation

“…Several field and laboratory studies have been conducted on measuring the effect of temperature on microbial respiration. Previous studies confirmed the effect of temperature on microbial respiration [18][19][20][21][22]. Lin et al [19] showed that a temperature rise could increase soil respiration.…”

“…Previous studies confirmed the effect of temperature on microbial respiration [18][19][20][21][22]. Lin et al [19] showed that a temperature rise could increase soil respiration. Their analysis for samples incubated at 35 • C suggested that bacterial structure is related to soil temperate while in samples incubated at 15 • C and 20 • C, it correlates with time.…”

Gold particles from Kamchatka: A brief look at gold biogeochemical cycling in a distinct environment

“…Therefore, it is possible that the microbes detected on the surface of Russian particles reflect changes in environmental geochemistry including the impact of past anthropogenic activity within and along the stream. Indeed, other factors such as bioavailability of carbon and nitrogen, attributed to weathering rates, can also result in a shift in bacterial diversity (Lin et al , 2017; Reith et al , 2012). In terms of particle transformation, the detection of ASVs directly from Russian particles highlights the types of bacteria that could contribute to gold biogeochemical cycling in the environment.…”