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Response of rhizosphere microbial communities to plant succession along a grassland chronosequence in a semiarid area
Song, Zilin1,2; Liu, Guobin1,3; Zhang, Chao1
2019-05-01
Source PublicationJOURNAL OF SOILS AND SEDIMENTS
ISSN1439-0108
Volume19Issue:5Pages:2496-2508
Corresponding AuthorZhang, Chao(zhangchaolynn@163.com)
AbstractPurpose: Changes in microbial communities during natural succession in semiarid areas have been widely studied but their association with plant and soil properties remains elusive. In the present study, we investigated plant characteristics, rhizosphere soil variables, and microbial communities along a chronosequence of grasslands forming on abandoned farmland on the Chinese Loess Plateau. Materials and methods: Rhizosphere samples were collected from the early-stage dominant plant Artemisia capillaris from farmland abandoned for 5, 10, and 15 years and from the late-stage dominant plant Artemisia sacrorum from farmland abandoned for 10, 15, 20, and 30 years. Microbial community composition, including bacteria and fungi, was determined by high-throughput sequencing. Microbial succession rates represented by temporary turnover were assessed using the slope (w value) of linear regressions, based on log-transformed microbial community similarity over time. Results and discussion: Cover and aboveground biomass of A. capillaris tended to decrease, whereas those of A. sacrorum increased during the succession. Although the rhizosphere bacteria of A. capillaris transitioned from Proteobacteria-dominant to Actinobacteria-dominant, the bacteria of A. sacrorum exhibited the opposite trend. Bacterial and fungal community diversity tended to increase logarithmically with increasing plant aboveground biomass, indicating that an increase in plant biomass could lead to enhanced rhizosphere microbial diversity, but the rate of enhancement decreased gradually. A lower temporary turnover rate of bacterial and fungal communities in the rhizosphere than that in the bulk soil indicated a higher successional rate of the rhizosphere microbial community. Levels of soil nutrients, such as organic carbon, nitrate nitrogen, and ammonium nitrogen, were closely associated with the abundance and diversity of bacterial and fungal communities, indicating their critical role in shaping the rhizosphere microbial community. Conclusions: Our results indicate a close association between plant succession and rhizosphere microbial succession in a semiarid area. Plants affect the microbial communities possibly by changing the nutrient input into the rhizosphere.
KeywordGrassland Microbial community Rhizosphere Succession
DOI10.1007/s11368-019-02241-6
WOS KeywordSECONDARY SUCCESSION ; FUNGAL COMMUNITIES ; SOIL BACTERIAL ; VEGETATION SUCCESSION ; ABANDONED CROPLAND ; ENZYME-ACTIVITY ; LOESS PLATEAU ; NITROGEN ; DIVERSITY ; DECREASES
Indexed BySCI
Language英语
Funding ProjectNational Natural Sciences Foundation of China[41701556] ; National Natural Sciences Foundation of China[41771554] ; National Key Research and Development Program of China[2016YFC0501707] ; Chinese University Scientific Fund[2452017111]
Funding OrganizationNational Natural Sciences Foundation of China ; National Key Research and Development Program of China ; Chinese University Scientific Fund
WOS Research AreaEnvironmental Sciences & Ecology ; Agriculture
WOS SubjectEnvironmental Sciences ; Soil Science
WOS IDWOS:000464836300031
PublisherSPRINGER HEIDELBERG
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Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/48235
Collection中国科学院地理科学与资源研究所
Corresponding AuthorZhang, Chao
Affiliation1.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China
2.Northwest A&F Univ, Coll Nat Resources & Environm, Yangling 712100, Shaanxi, Peoples R China
3.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
Recommended Citation
GB/T 7714
Song, Zilin,Liu, Guobin,Zhang, Chao. Response of rhizosphere microbial communities to plant succession along a grassland chronosequence in a semiarid area[J]. JOURNAL OF SOILS AND SEDIMENTS,2019,19(5):2496-2508.
APA Song, Zilin,Liu, Guobin,&Zhang, Chao.(2019).Response of rhizosphere microbial communities to plant succession along a grassland chronosequence in a semiarid area.JOURNAL OF SOILS AND SEDIMENTS,19(5),2496-2508.
MLA Song, Zilin,et al."Response of rhizosphere microbial communities to plant succession along a grassland chronosequence in a semiarid area".JOURNAL OF SOILS AND SEDIMENTS 19.5(2019):2496-2508.
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