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Li J, Cui L, Delgado-Baquerizo M, Wang J, Wang S, Wang R, Zhu Y, Li W, Singh BK. Plant species and associated root nutritional traits influence soil dominant bacteria in coastal wetlands across China. THE NEW PHYTOLOGIST 2024. [PMID: 39140980 DOI: 10.1111/nph.20047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Accepted: 07/24/2024] [Indexed: 08/15/2024]
Abstract
Climate and edaphic properties drive the biogeographic distribution of dominant soil microbial phylotypes in terrestrial ecosystems. However, the impact of plant species and their root nutritional traits on microbial distribution in coastal wetlands remains unclear. Here, we investigated the nutritional traits of 100 halophyte root samples and the bacterial communities in the corresponding soil samples from coastal wetlands across eastern China. This study spans 22° of latitude, covering over 2500 km from north to south. We found that 1% of soil bacterial phylotypes accounted for nearly 30% of the soil bacterial community abundance, suggesting that a few bacterial phylotypes dominated the coastal wetlands. These dominated phylotypes could be grouped into three ecological clusters as per their preference over climatic (temperature and precipitation), edaphic (soil carbon and nitrogen), and plant factors (halophyte vegetation, root carbon, and nitrogen). We further provide novel evidence that plant root nutritional traits, especially root C and N, can strongly influence the distribution of these ecological clusters. Taken together, our study provides solid evidence of revealing the dominance of specific bacterial phylotypes and the complex interactions with their environment, highlighting the importance of plant root nutritional traits on biogeographic distribution of soil microbiome in coastal wetland ecosystems.
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Affiliation(s)
- Jing Li
- Beijing Key Laboratory of Wetland Ecological Function and Restoration, Institute of Wetland Research, Chinese Academy of Forestry, Beijing, 100091, China
- Beijing Hanshiqiao National Wetland Ecosystem Research Station, Beijing, 101399, China
- Institute of Ecological Conservation and Restoration, Chinese Academy of Forestry, Beijing, 100091, China
| | - Lijuan Cui
- Beijing Key Laboratory of Wetland Ecological Function and Restoration, Institute of Wetland Research, Chinese Academy of Forestry, Beijing, 100091, China
- Beijing Hanshiqiao National Wetland Ecosystem Research Station, Beijing, 101399, China
- Institute of Ecological Conservation and Restoration, Chinese Academy of Forestry, Beijing, 100091, China
| | - Manuel Delgado-Baquerizo
- Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS), CSIC, E-41012, Sevilla, Spain
| | - Juntao Wang
- Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW, 2751, Australia
- Global Centre for Land-Based Innovation, Western Sydney University, Penrith South DC, NSW, 2751, Australia
- School of Science, Western Sydney University, Penrith, NSW, 2751, Australia
| | - Shaokun Wang
- Beijing Key Laboratory of Wetland Ecological Function and Restoration, Institute of Wetland Research, Chinese Academy of Forestry, Beijing, 100091, China
- Beijing Hanshiqiao National Wetland Ecosystem Research Station, Beijing, 101399, China
- Institute of Ecological Conservation and Restoration, Chinese Academy of Forestry, Beijing, 100091, China
| | - Rumiao Wang
- Beijing Key Laboratory of Wetland Ecological Function and Restoration, Institute of Wetland Research, Chinese Academy of Forestry, Beijing, 100091, China
- Beijing Hanshiqiao National Wetland Ecosystem Research Station, Beijing, 101399, China
- Institute of Ecological Conservation and Restoration, Chinese Academy of Forestry, Beijing, 100091, China
| | - Yinuo Zhu
- Qingdao Agricultural University, Qingdao, 266109, China
| | - Wei Li
- Beijing Key Laboratory of Wetland Ecological Function and Restoration, Institute of Wetland Research, Chinese Academy of Forestry, Beijing, 100091, China
- Beijing Hanshiqiao National Wetland Ecosystem Research Station, Beijing, 101399, China
- Institute of Ecological Conservation and Restoration, Chinese Academy of Forestry, Beijing, 100091, China
| | - Brajesh K Singh
- Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW, 2751, Australia
- Global Centre for Land-Based Innovation, Western Sydney University, Penrith South DC, NSW, 2751, Australia
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Han H, Liu H, Zhang B, Li Y, Li C, Cao H. Competitive relationships due to similar nutrient preferences reshape soil bacterial metacommunities. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 933:172956. [PMID: 38719036 DOI: 10.1016/j.scitotenv.2024.172956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Revised: 04/30/2024] [Accepted: 05/01/2024] [Indexed: 05/19/2024]
Abstract
Paddy soil, as an ecosystem with alternating drained and flooded conditions, microorganisms in it can maintain the stability of the ecosystem by regulating the composition and diversity of its species when disturbed by external biotic or abiotic factors, and the regulatory mechanism in this process is a controversial topic in ecological research. In this study, we investigate the effects of pigeon feces addition on bacterial communities in three textured soils, two conditions (drained and flooded) based on microcosm experiment using high-throughput sequencing techniques. Our results show that pigeon feces addition reduced environmental heterogeneity and community diversity, both under flooded and drained conditions and in all textured soils, thereby decreasing the effectiveness of environmental selection and increasing diffusion limitations among bacterial communities. Bacterial communities are altered by environmental factors including total organic carbon, available nitrogen, total phosphorus, available phosphorus and available potassium, resulting in the formation of new community structures and dominant genera. Bacteria from pigeon feces did not colonize the original soil in large numbers, and the soil bacterial community structure changed, with some species replaced the indigenous ones as new dominant genera. As nutrient diffusion increases the nutrient content of the soil, this does not lead to species extinction; however, nutrient diffusion creates new nutrient preferences of the bacterial community, which causes direct competition between species, and contributes to the extinction and immigration species. Our results suggest that species replacement is an adaptive strategy of soil bacterial community in response to dispersal of pigeon feces, and that bacterial community regulate diversity and abundance of the community by enhancing species extinction and immigration, thereby preventing bacteria in pigeon feces from colonizing paddy soils and maintaining ecosystem stability.
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Affiliation(s)
- Heming Han
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture and Rural Affairs, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Hao Liu
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture and Rural Affairs, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Bo Zhang
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture and Rural Affairs, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Yue Li
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture and Rural Affairs, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Chuanhai Li
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture and Rural Affairs, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China; School of Public Health, Qingdao University, Qingdao, Shandong 266071, China.
| | - Hui Cao
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture and Rural Affairs, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China.
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Pan Y, Kang P, Zhang Y, Li X. Kalidium cuspidatum colonization changes the structure and function of salt crust microbial communities. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:19764-19778. [PMID: 38363505 DOI: 10.1007/s11356-024-32364-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 02/03/2024] [Indexed: 02/17/2024]
Abstract
The changes of soil moisture, salinity, and nutrients by halophyte colonization in high-salinity environment profoundly affect the assembly and structure of microbial communities. However, salt marshes in arid region have received little attention. This study was conducted in Lianhuachi Lake, a typical inland salt marsh wetland in China, to determine the physicochemical characteristics of salt crusts in [Kalidium cuspidatum (Ung.-Sternb.) Grub.] colonization areas and bulk soil, respectively, and to analyze the microbial community structure of salt crusts by high-throughput sequencing. Kalidium cuspidatum colonization significantly decreased total salinity, soil water content, and water-soluble ions of salt crusts and increased total carbon, total nitrogen, and total phosphorus content. At the same time, changes in physicochemical properties caused by Kalidium cuspidatum colonization affect the ecological processes of bacterial, fungal, and archaeal community assemblies in salt crusts. In addition, cross-kingdom network analysis showed that Kalidium cuspidatum colonization increased the complexity and stability of microbial networks in salt crust soils. Functional projections further showed that bacterial diversity had a potential driving effect on the nitrogen cycle function of salt crust. Our study further demonstrated the different ecological strategies of microorganisms for halophyte colonization in extreme environments and contributed to the understanding of restoration and management of salt marsh wetlands in arid region.
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Affiliation(s)
- Yaqing Pan
- Shapotou Desert Research and Experimental Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, Gansu, China.
| | - Peng Kang
- School of Biological Sciences and Engineering, North Minzu University, Yinchuan, 750021, Ningxia, China
| | - Yaqi Zhang
- School of Biological Sciences and Engineering, North Minzu University, Yinchuan, 750021, Ningxia, China
| | - Xinrong Li
- Shapotou Desert Research and Experimental Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, Gansu, China
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Zhang G, Jia J, Zhao Q, Wang W, Wang D, Bai J. Seasonality and assembly of soil microbial communities in coastal salt marshes invaded by a perennial grass. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 331:117247. [PMID: 36642049 DOI: 10.1016/j.jenvman.2023.117247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 12/29/2022] [Accepted: 01/04/2023] [Indexed: 06/17/2023]
Abstract
Plant invasion profoundly changes the microbial-driven processes in the ecosystem; however, the seasonality of soil microbial communities and their assembly under plant invasion is poorly understood. In this study, coastal salt marshes with native Suaeda salsa (L.) Pall. and exotic Spartina alterniflora Loisel. in the Yellow River Estuary, North China, were selected, and soil bacterial and fungal communities and their seasonal variance were characterized by metabarcoding sequencing of the 16S rRNA gene and ITS2 regions, respectively. The importance of deterministic and stochastic processes in shaping bacterial and fungal seasonal assembly was explored by the null model. Results showed that soil microbes exhibited the lowest diversities in spring, while their diversity significantly improved in summer and autumn with the increase in organic carbon and nitrogen content in soils. Strong seasonal variances in microbial communities were observed, but plant invasion reduced the seasonal variation strength of soil bacteria. For the microbial assembly, the seasonal variability of soil bacterial community was mainly controlled by homogeneous selection, whereas soil fungal community was dominantly structured by stochastic processes. Among the selected variables, soil pH was the key abiotic factor driving the seasonal changes in bacteria and fungi. The microbial function annotation derived from taxonomy-based inference suggested that carbon metabolism was relatively stronger in spring, but nitrogen and sulfur metabolism increased evidently in summer and autumn, and the proportion of saprophytic fungi increased substantially after plant invasion. The seasonal turnover of bacterial and fungal groups were tightly associated with the seasonal variation in soil carbon and nitrogen contents. Collectively, these findings reveal the strong seasonal variability of different soil microbial constituents in plant-invaded coastal salt marshes and suggest the linkage between microbial community assembly and microbial-mediated functions in the context of plant invasions.
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Affiliation(s)
- Guangliang Zhang
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, 100875, PR China; Advanced Institute of Natural Sciences, Beijing Normal University, Zhuhai, 519087, PR China
| | - Jia Jia
- Henan Key Laboratory of Ecological Environment Protection and Restoration of Yellow River Basin, Yellow River Institute of Hydraulic Research, Zhengzhou, 45003, PR China
| | - Qingqing Zhao
- Shandong Provincial Key Laboratory of Applied Microbiology, Ecology Institute, Qilu University of Technology (Shandong Academy of Sciences), Ji'nan, 250103, PR China
| | - Wei Wang
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, 100875, PR China
| | - Dawei Wang
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, 100875, PR China
| | - Junhong Bai
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, 100875, PR China; Shandong Key Laboratory of Eco-Environmental Science for the Yellow River Delta, Binzhou University, Binzhou, 256600, PR China.
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Zhang M, Shi C, Li X, Wang K, Qiu Z, Shi F. Changes in the structure and function of rhizosphere soil microbial communities induced by Amaranthus palmeri invasion. Front Microbiol 2023; 14:1114388. [PMID: 37056750 PMCID: PMC10089265 DOI: 10.3389/fmicb.2023.1114388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 03/09/2023] [Indexed: 03/30/2023] Open
Abstract
IntroductionPlant invasion can profoundly alter ecosystem processes driven by microorganisms. The fundamental mechanisms linking microbial communities, functional genes, and edaphic characteristics in invaded ecosystems are, nevertheless, poorly understood.MethodsHere, soil microbial communities and functions were determined across 22 Amaranthus palmeri (A. palmeri) invaded patches by pairwise 22 native patches located in the Jing-Jin-Ji region of China using high-throughput amplicon sequencing and quantitative microbial element cycling technologies.ResultsAs a result, the composition and structure of rhizosphere soil bacterial communities differed significantly between invasive and native plants according to principal coordinate analysis. A. palmeri soils exhibited higher abundance of Bacteroidetes and Nitrospirae, and lower abundance of Actinobacteria than native soils. Additionally, compared to native rhizosphere soils, A. palmeri harbored a much more complex functional gene network with higher edge numbers, average degree, and average clustering coefficient, as well as lower network distance and diameter. Furthermore, the five keystone taxa identified in A. palmeri rhizosphere soils belonged to the orders of Longimicrobiales, Kineosporiales, Armatimonadales, Rhizobiales and Myxococcales, whereas Sphingomonadales and Gemmatimonadales predominated in the native rhizosphere soils. Moreover, random forest model revealed that keystone taxa were more important indicators of soil functional attributes than edaphic variables in both A. palmeri and native rhizosphere soils. For edaphic variables, only ammonium nitrogen was a significant predictor of soil functional potentials in A. palmeri invaded ecosystems. We also found keystone taxa in A. palmeri rhizosphere soils had strong and positive correlations with functional genes compared to native soils.DiscussionOur study highlighted the importance of keystone taxa as a driver of soil functioning in invaded ecosystem.
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Affiliation(s)
- Mei Zhang
- Department of Plant Biology and Ecology, College of Life Sciences, Nankai University, Tianjin, China
| | - Cong Shi
- School of Environmental Science and Engineering, Tiangong University, Tianjin, China
| | - Xueying Li
- Department of Plant Biology and Ecology, College of Life Sciences, Nankai University, Tianjin, China
| | - Kefan Wang
- Department of Plant Biology and Ecology, College of Life Sciences, Nankai University, Tianjin, China
| | - Zhenlu Qiu
- Department of Plant Biology and Ecology, College of Life Sciences, Nankai University, Tianjin, China
| | - Fuchen Shi
- Department of Plant Biology and Ecology, College of Life Sciences, Nankai University, Tianjin, China
- *Correspondence: Fuchen Shi,
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Effects of Invasive Plant Diversity on Soil Microbial Communities. DIVERSITY 2022. [DOI: 10.3390/d14110992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Native plant communities can be invaded by different numbers of alien plant species or by the same number of alien plant species with different levels of evenness. However, little is known about how alien invasive plant species richness and evenness affect soil microbial communities. We constructed native herbaceous plant communities invaded by exotic plants with different richness (1, 2, 4 and 8 species) and evenness (high and low) and analyzed soil physico-chemical properties and the diversity and composition of soil fungal and bacterial communities by high-throughput Illumina sequencing. Overall, the species richness and evenness of invasive plants had no significant effect on bacterial and fungal alpha diversity (OTUs, Shannon, Simpson, Chao1 and ACE) or the soil physico-chemical properties. However, invasive species richness had a significant impact on the relative abundance of the most dominant fungi, Ascomycota and Bipolaris, and the dominant bacteria, Actinobacteriota, which increased with increasing invasive species richness. The relative abundance of the dominant microbial groups was significantly correlated with the relative abundance of some specific invasive plants in the community. This study sheds new light on the effects of plant co-invasion on soil microbial communities, which may help us understand the underlying mechanisms of multiple alien plant invasion processes from the perspective of soil microorganisms.
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