RCEES OpenIR  > 城市与区域生态国家重点实验室
Metagenomic and(14)Ctracing evidence for autotrophic microbialCO(2)fixation in paddy soils
Xiao, Ke-Qing; Ge, Ti-Da; Wu, Xiao-Hong; Peacock, Caroline L.; Zhu, Zhen-Ke; Peng, Jingjing; Bao, Peng; Wu, Jin-Shui; Zhu, Yong-Guan
2020-02
Source PublicationENVIRONMENTAL MICROBIOLOGY
ISSN1462-2912
Volume23Issue:2Pages:924-933
AbstractAutotrophic carbon dioxide (CO2) fixation by microbes is ubiquitous in the environment and potentially contributes to the soil organic carbon (SOC) pool. However, the multiple autotrophic pathways of microbial carbon assimilation and fixation in paddy soils remain poorly characterized. In this study, we combine metagenomic analysis with(14)C-labelling to investigate all known autotrophic pathways and CO(2)assimilation mechanisms in five typical paddy soils from southern China. Marker genes of six autotrophic pathways are detected in all soil samples, which are dominated by thecbbLgenes (67%-82%) coding the ribulose-bisphosphate carboxylase large chain in the Calvin cycle. These marker genes are associated with a broad range of phototrophic and chemotrophic genera. Significant amounts of(14)C-CO(2)are assimilated into SOC (74.3-175.8 mg(14)C kg(-1)) and microbial biomass (5.2-24.1 mg(14)C kg(-1)) after 45 days incubation, where more than 70% of(14)C-SOC was concentrated in the relatively stable humin fractions. These results show that paddy soil microbes contain the genetic potential for autotrophic carbon fixation spreading over broad taxonomic ranges, and can incorporate atmospheric carbon into organic components, which ultimately contribute to the stable SOC pool.
Department城市与区域生态国家重点实验室
Document Type期刊论文
Identifierhttps://ir.rcees.ac.cn/handle/311016/44379
Collection城市与区域生态国家重点实验室
Recommended Citation
GB/T 7714
Xiao, Ke-Qing,Ge, Ti-Da,Wu, Xiao-Hong,et al. Metagenomic and(14)Ctracing evidence for autotrophic microbialCO(2)fixation in paddy soils[J]. ENVIRONMENTAL MICROBIOLOGY,2020,23(2):924-933.
APA Xiao, Ke-Qing.,Ge, Ti-Da.,Wu, Xiao-Hong.,Peacock, Caroline L..,Zhu, Zhen-Ke.,...&Zhu, Yong-Guan.(2020).Metagenomic and(14)Ctracing evidence for autotrophic microbialCO(2)fixation in paddy soils.ENVIRONMENTAL MICROBIOLOGY,23(2),924-933.
MLA Xiao, Ke-Qing,et al."Metagenomic and(14)Ctracing evidence for autotrophic microbialCO(2)fixation in paddy soils".ENVIRONMENTAL MICROBIOLOGY 23.2(2020):924-933.
Files in This Item: Download All
File Name/Size DocType Version Access License
Metagenomic and 14C (707KB)期刊论文出版稿开放获取CC BY-NC-SAView Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Xiao, Ke-Qing]'s Articles
[Ge, Ti-Da]'s Articles
[Wu, Xiao-Hong]'s Articles
Baidu academic
Similar articles in Baidu academic
[Xiao, Ke-Qing]'s Articles
[Ge, Ti-Da]'s Articles
[Wu, Xiao-Hong]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Xiao, Ke-Qing]'s Articles
[Ge, Ti-Da]'s Articles
[Wu, Xiao-Hong]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Metagenomic and 14C tracing evidence for autotrophic microbial CO2 fixation in paddy soils.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.