Change in composition and potential functional genes of soil bacterial and fungal communities with secondary succession in Quercus liaotwigensis forests of the Loess Plateau, western China

doi:10.1016/j.geoderma.2020.114199

	Change in composition and potential functional genes of soil bacterial and fungal communities with secondary succession in Quercus liaotwigensis forests of the Loess Plateau, western China
	Yan, Benshuai 2,3; Sun, Lipeng 1; Li, Jingjing 4; Liang, Caiqun 4; Wei, Furong 4; Xue, Sha 3,4; Wang, Guoliang 3,4
刊名	GEODERMA
	2020-04-01
卷号	364 页码:11
关键词	Secondary succession Bacterial community Fungal community r and K strategy Carbon cycle gene Nitrogen cycle gene
ISSN号	0016-7061
DOI	10.1016/j.geoderma.2020.114199
通讯作者	Wang, Guoliang(glwang@nwsuaf.edu.cn)
英文摘要	Vegetation succession is one of the most important factors driving changes in microorganisms. It is unclear, however, how the microbial composition and the potential function of C and N cycling change with forest secondary succession. Using soil metagenomic sequencing methods, we studied these changes in bacterial and fungal communities with secondary succession from cropland to a Quercus liaotungensis forest over approximately 120 years on the Loess Plateau of China. The results revealed the following. (1) Soil microbial biomass C, N, and P increased significantly in topsoil (0-20 cm) with vegetation succession. (2) The abundances of bacteria increased initially and then decreased slightly, whereas an increase in fungal abundances and the ratio of fungi to bacteria was detected along a successional gradient. Microbial communities tended to shift from r- to K-strategists, both at the phylum and genus levels. (3) With vegetation succession, the abundances of C and N cycle-related potential functional genes first significantly increased and then stabilized. Among them, the relative abundances of recalcitrant C degradation-, N fixation-, and ammonification-related genes increased, whereas labile C degradation-, N reduction-, and denitrification-related genes tended to decrease. (4) Redundancy analysis indicated that bacterial communities were influenced by available phosphorus contents and soil C: N ratios, and that fungal communities were mainly affected by ammonium N contents and root biomass. (5) Predicted microbial functional genes were affected by ammonium N and activated C contents. Our study showed that with vegetation succession, microbe communities tended to shift from r- to K-strategists both at the phylum and genus levels, which increased the abundance of organisms expressing C- and N-cycle related genes.
资助项目	National Key Research and Development Program of China[2017YFC0504601] ; Science and Technology Service Network Initiative of Chinese Academy of Sciences[KFJ-STS-ZDTP-036]
WOS关键词	MICROBIAL COMMUNITY ; LITTER DECOMPOSITION ; CARBON FRACTIONS ; GLOBAL PATTERNS ; ORGANIC-CARBON ; ECOSYSTEM ; DIVERSITY ; DYNAMICS ; GENERATION ; PHYSIOLOGY
WOS研究方向	Agriculture
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000517855200011
资助机构	National Key Research and Development Program of China ; Science and Technology Service Network Initiative of Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/132768]
专题	中国科学院地理科学与资源研究所
通讯作者	Wang, Guoliang
作者单位	1.Yulin Univ, Yulin 719000, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China 4.Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Yan, Benshuai,Sun, Lipeng,Li, Jingjing,et al. Change in composition and potential functional genes of soil bacterial and fungal communities with secondary succession in Quercus liaotwigensis forests of the Loess Plateau, western China[J]. GEODERMA,2020,364:11.
APA	Yan, Benshuai.,Sun, Lipeng.,Li, Jingjing.,Liang, Caiqun.,Wei, Furong.,...&Wang, Guoliang.(2020).Change in composition and potential functional genes of soil bacterial and fungal communities with secondary succession in Quercus liaotwigensis forests of the Loess Plateau, western China.GEODERMA,364,11.
MLA	Yan, Benshuai,et al."Change in composition and potential functional genes of soil bacterial and fungal communities with secondary succession in Quercus liaotwigensis forests of the Loess Plateau, western China".GEODERMA 364(2020):11.