文章基本信息

标题：Elevated ground-level O₃ negatively influences paddy methanogenic archaeal community
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作者：Youzhi Feng ; Xiangui Lin ; Yongchang Yu 等
期刊名称：Scientific Reports
电子版ISSN：2045-2322
出版年度：2013
卷号：3
DOI：10.1038/srep03193
出版社：Springer Nature
摘要：The current knowledge regarding the effect of global climate change on rice-paddy methane (CH₄) emissions is incomplete, partly because information is limited concerning the mechanism of the microbial response to elevated ground-level ozone (O₃). A field experiment was conducted in the China Ozone Free-Air Concentration Enrichment facility in a rice–wheat rotation system to investigate the responses of methanogenic archaeal communities to elevated ground-level O₃ by culture-independent and -reliant approaches. We found that elevated ground-level O₃ inhibited methanogenic activity and influenced the composition of paddy methanogenic communities, reducing the abundance and diversity of paddy methanogens by adversely affecting dominant groups, such as aceticlastic Methanosaeta , especially at the rice tillering stage. Our results indicated that continuously elevated ground-level O₃ would negatively influence paddy methanogenic archaeal communities and its critical ecological function. These findings will contribute to a comprehensive understanding of the responses and feedbacks of paddy ecosystems to global climate change.