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

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• 作者：Yuan Liu ; Hui Zhang ; Minghua Xiong ; Feng Li ; Lianqing Li…
• 关键词：Elevated CO2 ; Warming ; Wheat field ; Microbial community ; Climate change
• 刊名：Biology and Fertility of Soils
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：53
• 期：1
• 页码：3-8
• 全文大小：
• 刊物类别：Earth and Environmental Science
• 刊物主题：Agriculture; Soil Science & Conservation;
• 出版者：Springer Berlin Heidelberg
• ISSN：1432-0789
• 卷排序：53

文摘

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.