Soil microbial community structure dynamics shape the rhizosphere priming effect patterns in the paddy soil

doi:10.1016/j.scitotenv.2022.159459

	Soil microbial community structure dynamics shape the rhizosphere priming effect patterns in the paddy soil
	Cui, Hao ; Chen, Pengfei ; He, Chao ; Jiang, Zhenhui 1; Lan, Rui 2; Yang, Jingping 3
	2023
发表期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
卷号	857
摘要	Microbial community structure plays a crucial part in soil organic carbon (SOC) decomposition and variation of rhizo-sphere priming effects (RPEs) during plant growth. However, it is still uncertain how bacterial community structure regulates RPEs in soil and how RPE patterns respond to plant growth. Therefore, we conducted an experiment to ex-amine the RPE response to plant growth and nitrogen (N) addition (0 (N0), 150 (N150), and 300 (N300) kg N ha-1) using the 13C natural abundance method in a C3 soil (paddy soil) -C4 plant (maize, Zea mays L.) system; we then explored the underlying biotic mechanisms using 16S rRNA sequencing techniques. Networks were constructed to identify keystone taxa and to analyze the correlations between network functional modules of bacterial community and C decomposition. The results indicated that negative and positive RPEs occurred on Day 30 and Day 75 after maize planting, respectively. Bacterial community structure significantly changed and tended to shift from r-strategists to-ward K-strategists with changing labile C: N stoichiometry and soil pH during plant growth stages. The different net -work modules of bacterial community were aggregated in response to RPE pattern variation. Caulobacteraceae, Bacillus, and Chitinophagaceae were keystone taxa on Day 30, while Gemmatimonas, Candidatus Koribacter, and Xanthobacteraceae were keystone taxa on Day 75. Moreover, keystone taxa with different C utilization strategieswere significantly different between the two growth stages and related closely to different RPE patterns. This study provides deeper insights into the network structure of bacterial communities corresponding to RPE patterns and em-phasizes the significance of keystone taxa in RPE variation.
关键词	Rhizosphere priming effects Bacterial community structure Keystone taxa Network modules
学科领域	Environmental Sciences
DOI	10.1016/j.scitotenv.2022.159459
收录类别	SCI
语种	英语
WOS关键词	ORGANIC-MATTER DECOMPOSITION ; NETWORK ANALYSIS REVEALS ; CARBON DECOMPOSITION ; BACTERIAL COMMUNITY ; NITROGEN DEPOSITION ; BIOCHAR ALTERS ; MICROORGANISMS ; MECHANISMS ; ECOSYSTEMS ; BIOMASS
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000906906400016
出版者	ELSEVIER
文献子类	Article
出版地	AMSTERDAM
EISSN	1879-1026
资助机构	National Natural Science Foundation of China ; National Key Research and Development Program of China ; [31870419] ; [2016YFD0300203-4]
作者邮箱	jpyang@zju.edu.cn
引用统计	被引频次：12[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/2S10CLM1/29128
专题	植被与环境变化国家重点实验室
作者单位	1.Zhejiang Univ, Inst Environm Pollut Control & Treatment, Coll Environm & Resource Sci, Hangzhou 310058, Zhejiang, Peoples R China 2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 3.Bur Ecol & Environm, Environm Monitoring Stn Manasi, Beijing 832200, Xinjiang Uygur, Peoples R China 4.Zhejiang Univ, Coll Environm & Resource Sci, 866 Yuhangtang Rd, Hangzhou 310058, Zhejiang, Peoples R China
推荐引用方式 GB/T 7714	Cui, Hao,Chen, Pengfei,He, Chao,et al. Soil microbial community structure dynamics shape the rhizosphere priming effect patterns in the paddy soil[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2023,857.
APA	Cui, Hao,Chen, Pengfei,He, Chao,Jiang, Zhenhui,Lan, Rui,&Yang, Jingping.(2023).Soil microbial community structure dynamics shape the rhizosphere priming effect patterns in the paddy soil.SCIENCE OF THE TOTAL ENVIRONMENT,857.
MLA	Cui, Hao,et al."Soil microbial community structure dynamics shape the rhizosphere priming effect patterns in the paddy soil".SCIENCE OF THE TOTAL ENVIRONMENT 857(2023).

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