Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.soilbio.2018.08.012 |
Changes in functional gene structure and metabolic potential of the microbial community in biological soil crusts along a revegetation chronosequence in the Tengger Desert | |
Liu, Yubing1,2; Zhao, Lina1,2; Wang, Zengru1,2; Liu, Lichao1,2; Zhang, Peng1,2; Sun, Jingyao1; Wang, Bingyao1; Song, Guang1; Li, Xinrong1,2 | |
通讯作者 | Liu, Yubing ; Li, Xinrong |
来源期刊 | SOIL BIOLOGY & BIOCHEMISTRY |
ISSN | 0038-0717 |
出版年 | 2018 |
卷号 | 126页码:40-48 |
英文摘要 | Biological soil crusts (BSCs), the pioneers of restoration of degraded vegetation, act as an organizing principle in drylands largely through metabolic activities of microbial communities. However, little is known about the microbial functional potential involved in biogeochemical processes during BSC succession in desert ecosystems. Here, we utilized a functional gene array (GeoChip 5.0) in conjunction with determinants of microbial community compositions of BSCs along a revegetation chronosequence in the Tengger Desert, to address the following: (a) how the functional structure of the microbial community changes with BSC age in different soils and (b) how genes involved in carbon (C)- and nitrogen (N)-cycling change and whether they promoted an increased microbial metabolic potential during BSC succession in desert revegetation. The results showed that the relative abundance of functional genes was determined by the microbial community compositions in the BSC development process, and the significant differences in microbial functional genes were detected in 61-year-old BSCs from other aged BSCs. Redundancy analysis indicated that the abundance of fungi and moss and soil physicochemical properties were the important factors determining differences in microbial functional structures. Functional genes associated with C degradation and N denitrification were the major components involved in C and N cycles, which were closely related to the increased fungal abundance during succession. The increased gene abundance of 61-year-old BSCs in both C and N cycles promoted microbial metabolic potential. These results indicated that fungi might be the key microbial mediators in C and N cycling in the later development of BSCs, and microbial functional structure could be a potential indicator of revegetation sustainability in desert ecosystems. |
英文关键词 | Biological soil crusts (BSCs) Microbial community composition Microbial functional structure Carbon and nitrogen cycles |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
收录类别 | SCI-E |
WOS记录号 | WOS:000447580800005 |
WOS关键词 | NITROUS-OXIDE PRODUCTION ; BACTERIAL COMMUNITIES ; FUNGAL COMMUNITIES ; MYCORRHIZAL FUNGI ; SPECIES RICHNESS ; DIVERSITY ; NUTRIENTS ; FIXATION ; PATTERNS ; RECOVERY |
WOS类目 | Soil Science |
WOS研究方向 | Agriculture |
来源机构 | 中国科学院西北生态环境资源研究院 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/213209 |
作者单位 | 1.Chinese Acad Sci, Shapotou Desert Res & Expt Stn, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Gansu, Peoples R China; 2.Chinese Acad Sci, Key Lab Stress Physiol & Ecol Cold & Arid Reg Gan, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Gansu, Peoples R China |
推荐引用方式 GB/T 7714 | Liu, Yubing,Zhao, Lina,Wang, Zengru,et al. Changes in functional gene structure and metabolic potential of the microbial community in biological soil crusts along a revegetation chronosequence in the Tengger Desert[J]. 中国科学院西北生态环境资源研究院,2018,126:40-48. |
APA | Liu, Yubing.,Zhao, Lina.,Wang, Zengru.,Liu, Lichao.,Zhang, Peng.,...&Li, Xinrong.(2018).Changes in functional gene structure and metabolic potential of the microbial community in biological soil crusts along a revegetation chronosequence in the Tengger Desert.SOIL BIOLOGY & BIOCHEMISTRY,126,40-48. |
MLA | Liu, Yubing,et al."Changes in functional gene structure and metabolic potential of the microbial community in biological soil crusts along a revegetation chronosequence in the Tengger Desert".SOIL BIOLOGY & BIOCHEMISTRY 126(2018):40-48. |
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