干旱区生态环境知识资源中心(Arid): Bacteria and fungi differentially contribute to carbon and nitrogen cycles during biological soil crust succession in arid ecosystems

Arid

DOI	10.1007/s11104-019-04391-5
	Bacteria and fungi differentially contribute to carbon and nitrogen cycles during biological soil crust succession in arid ecosystems
	Zhao, Lina 1,2,3; Liu, Yubing 1,2; Wang, Zengru 1; Yuan, Shiwei 3,4; Qi, Jinghua 1,3; Zhang, Wenli 1,2,3; Wang, Yansong 1,2,3; Li, Xinrong1,2
通讯作者	Liu, Yubing ; Li, Xinrong
来源期刊	PLANT AND SOIL
ISSN	0032-079X
EISSN	1573-5036
出版年	2020
卷号	447 期号:1-2 页码:379-392
英文摘要	Aims Biological soil crusts (BSCs) are widely considered critical for soil fertility in arid ecosystems. However, how microbial communities regulate the C and N cycles during BSC succession is not well understood. Methods We utilized GeoChip 5.0 to analyze the functional potential of bacteria and fungi involved in the C and N cycles of BSCs along a 61-year revegetation chronosequence. Results The normalized average signal intensities of different functional genes involved in C and N metabolism in 61-year-old BSCs were significantly different from those in younger BSCs and most functional gene subcategories and the corresponding dominant functional populations were derived from bacterial rather than fungal communities. Most C degradation genes (dominated by the starch-degrading gene amyA) were derived from Actinobacteria (mainly Streptomyces) in bacteria, but Ascomycota (mainly Aspergillus) was the key population for lignin degradation (dominated by the phenol oxidase gene) during BSC succession. N cycle genes involved in denitrification (such as narG, nirK/S, and nosZ) and N fixation (nifH) were mainly derived from Unclassified Bacteria, whereas genes involved in ammonification (ureC) were mainly derived from Streptomyces. Moreover, redundancy analysis showed that soil biogeochemical properties were closely related to bacterial and fungal functional gene structures during BSC succession. Conclusions These findings indicate that bacteria play a crucial role in the regulation of C and N cycles during BSC succession in arid ecosystems, while fungi perform supplementary degradation of lignin, and these communities can successfully stimulate an increase in C and N metabolism in soil during the later successional stages of BSCs.
英文关键词	Biological soil crusts (BSCs) Carbon cycle Functional gene Functional microbial composition Nitrogen cycle
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000519658900025
WOS关键词	MICROBIAL COMMUNITY ; TENGGER DESERT ; GENE DIVERSITY ; FIXATION ; REVEGETATION ; DENITRIFICATION ; AVAILABILITY ; BIODIVERSITY ; DEGRADATION ; RESPIRATION
WOS类目	Agronomy ; Plant Sciences ; Soil Science
WOS研究方向	Agriculture ; Plant Sciences
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/2XILL650/315325
作者单位	1.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Shapotou Desert Res & Expt Stn, Lanzhou 730000, Peoples R China; 2.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Stress Physiol & Ecol Cold & Arid Reg Gan, Lanzhou 730000, Peoples R China; 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 4.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Remote Sensing Gansu Prov, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Lina,Liu, Yubing,Wang, Zengru,et al. Bacteria and fungi differentially contribute to carbon and nitrogen cycles during biological soil crust succession in arid ecosystems[J]. 中国科学院西北生态环境资源研究院,2020,447(1-2):379-392.
APA	Zhao, Lina.,Liu, Yubing.,Wang, Zengru.,Yuan, Shiwei.,Qi, Jinghua.,...&Li, Xinrong.(2020).Bacteria and fungi differentially contribute to carbon and nitrogen cycles during biological soil crust succession in arid ecosystems.PLANT AND SOIL,447(1-2),379-392.
MLA	Zhao, Lina,et al."Bacteria and fungi differentially contribute to carbon and nitrogen cycles during biological soil crust succession in arid ecosystems".PLANT AND SOIL 447.1-2(2020):379-392.