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Large-scale evidence for microbial response and associated carbon release after permafrost thaw
Chen, Yongliang1; Liu, Futing2; Kang, Luyao3; Zhang, Dianye; Kou, Dan; Mao, Chao3; Qin, Shuqi3; Zhang, Qiwen; Yang, Yuanhe3
2021
发表期刊GLOBAL CHANGE BIOLOGY
ISSN1354-1013
卷号27期号:14页码:3218-3229
摘要Permafrost thaw could trigger the release of greenhouse gases through microbial decomposition of the large quantities of carbon (C) stored within frozen soils. However, accurate evaluation of soil C emissions from thawing permafrost is still a big challenge, partly due to our inadequate understanding about the response of microbial communities and their linkage with soil C release upon permafrost thaw. Based on a large-scale permafrost sampling across 24 sites on the Tibetan Plateau, we employed meta-genomic technologies (GeoChip and Illumina MiSeq sequencing) to explore the impacts of permafrost thaw (permafrost samples were incubated for 11 days at 5 degrees C) on microbial taxonomic and functional communities, and then conducted a laboratory incubation to investigate the linkage of microbial taxonomic and functional diversity with soil C release after permafrost thaw. We found that bacterial and fungal alpha diversity decreased, but functional gene diversity and the normalized relative abundance of C degradation genes increased after permafrost thaw, reflecting the rapid microbial response to permafrost thaw. Moreover, both the microbial taxonomic and functional community structures differed between the thawed permafrost and formerly frozen soils. Furthermore, soil C release rate over five month incubation was associated with microbial functional diversity and C degradation gene abundances. By contrast, neither microbial taxonomic diversity nor community structure exhibited any significant effects on soil C release over the incubation period. These findings demonstrate that permafrost thaw could accelerate C emissions by altering the function potentials of microbial communities rather than taxonomic diversity, highlighting the crucial role of microbial functional genes in mediating the responses of permafrost C cycle to climate warming.
关键词carbon cycle climate warming GeoChip Illumina sequencing microbial community permafrost thaw
学科领域Biodiversity Conservation ; Ecology ; Environmental Sciences
DOI10.1111/gcb.15487
收录类别SCI
语种英语
WOS关键词RIBOSOMAL-RNA ; FUNCTIONAL REDUNDANCY ; TIBETAN PLATEAU ; ACTIVE LAYER ; SOIL CARBON ; COMMUNITIES ; DIVERSITY ; SEQUENCES ; DECOMPOSITION ; PATTERNS
WOS研究方向Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号WOS:000609278300001
出版者WILEY
文献子类Article
出版地HOBOKEN
EISSN1365-2486
资助机构National Key Research and Development Program of China [2017YFA0604803, 2016YFC0500701] ; National Natural Science Foundation of China [31825006, 31988102, 91837312] ; Second Tibetan Plateau Scientific Expedition and Research [2019QZKK0106]
作者邮箱yhyang@ibcas.ac.cn
引用统计
被引频次:40[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ibcas.ac.cn/handle/2S10CLM1/26425
专题植被与环境变化国家重点实验室
作者单位1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
2.China Agr Univ, Coll Resources & Environm Sci, Beijing, Peoples R China
3.Chinese Acad Forestry, Res Inst Forestry, Key Lab Tree Breeding & Cultivat, State Forestry & Grassland Adm, Beijing, Peoples R China
4.Univ Chinese Acad Sci, Beijing, Peoples R China
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GB/T 7714
Chen, Yongliang,Liu, Futing,Kang, Luyao,et al. Large-scale evidence for microbial response and associated carbon release after permafrost thaw[J]. GLOBAL CHANGE BIOLOGY,2021,27(14):3218-3229.
APA Chen, Yongliang.,Liu, Futing.,Kang, Luyao.,Zhang, Dianye.,Kou, Dan.,...&Yang, Yuanhe.(2021).Large-scale evidence for microbial response and associated carbon release after permafrost thaw.GLOBAL CHANGE BIOLOGY,27(14),3218-3229.
MLA Chen, Yongliang,et al."Large-scale evidence for microbial response and associated carbon release after permafrost thaw".GLOBAL CHANGE BIOLOGY 27.14(2021):3218-3229.
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