Abundance and composition response of wheat field soil bacterial and fungal communities to elevated CO2 and increased air temperature

作者：Liu, Yuan; Zhang, Hui; Xiong, Minghua; Li, Feng; Li, Lianqing; Wang, Guangli^*; Pan, Genxing^*

来源：Biology and Fertility of Soils, 2017, 53(1): 3-8.

DOI：10.1007/s00374-016-1159-8

• Elevated CO2
• Warming
• Wheat field
• Microbial community
• Climate change

The abundance and diversity of soil bacterial and fungal communities in a wheat field under elevated atmospheric CO2 concentrations and increased air temperatures were investigated using qPCR and pyrosequencing. Elevated CO2 concentrations significantly increased the abundances of bacteria and fungi, and an increase of air temperatures significantly reduced fungal abundance. We found that Proteobacteria, Bacteroidetes, Chloroflexi, and Ascomycota were the most abundant bacterial and fungal phyla in the wheat field soil. Elevated CO2 concentrations and increased air temperatures had no significant effect on the bacterial alpha diversity, whereas fungal richness was reduced under warming treatments. Moreover, we note that certain bacterial and fungal groups responded differentially to elevated CO2 concentrations and increased air temperatures, and fungal species were highly sensitive to climatic changes.

• 出版日期2017-1
• 单位浙江农林大学; 淮北师范大学; 南京农业大学