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Xu M, Zhi Y, Kong Z, Ma H, Shao Z, Chen L, Chen H, Yuan Y, Liu F, Xu Y, Ni Q, Hu S, Chai H. Enhancing nitrogen and phosphorus removal in plant-biochar-pyrite stormwater bioretention systems: Impact of temperature and high-frequency heavy rainfall. ENVIRONMENTAL RESEARCH 2024; 262:119926. [PMID: 39276826 DOI: 10.1016/j.envres.2024.119926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2024] [Revised: 08/21/2024] [Accepted: 09/02/2024] [Indexed: 09/17/2024]
Abstract
Global climate change and rapid urbanization have resulted in more frequent and intense rainfall events in urban areas, raising concerns about the effectiveness of stormwater bioretention systems. In this study, we optimized the design by constructing a multi-layer filler structure, including plant layer, biochar layer, and pyrite layer, and evaluated its performance in nitrogen (N) and phosphorus (P) removal under different temperatures (5-18 °C and 24-43 °C), rainfall intensity (47.06 mm rainfall depth), and frequency (1-5 days rainfall intervals) conditions. The findings indicate that over 775 days, the plant system consistently removed 62.3% of total nitrogen (TN) and 97.0% of total phosphorus (TP) from 103 intense rainfall events. Temperature fluctuations had minimal impact on nitrate nitrogen (NO3--N) and TP removal, with differences in removal rates of only 1.0% and 0.6%, respectively, among plant groups. Across the multi-layer structure, plant roots mitigated the impact of temperature differences on NO3--N removal, while high-frequency rainfall fluctuated the stability of NO3--N removal. Dense plant roots reinforced N and P removal by facilitating denitrification in the vadose zone (biochar) and strengthening denitrification processes. Biochar and pyrite contributed to stable microenvironments and diverse ecological functions, enhancing NO3--N and PO43- removal. In summary, the synergistic effects of the multi-layer filler structure improved and stabilized N and P removal, providing valuable insights for addressing runoff pollution in bioretention systems amidst rapid urbanization and climate change challenges.
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Affiliation(s)
- Mei Xu
- Key Laboratory of the Three Gorges Reservoir Region, Ministry of Education, College of Environment and Ecology, Chongqing University, Chongqing, 400045, China
| | - Yue Zhi
- Key Laboratory of the Three Gorges Reservoir Region, Ministry of Education, College of Environment and Ecology, Chongqing University, Chongqing, 400045, China
| | - Zheng Kong
- Australian Centre for Water and Environmental Biotechnology, The University of Queensland, St Lucia, QLD, 4072, Australia
| | - Haiyuan Ma
- Key Laboratory of the Three Gorges Reservoir Region, Ministry of Education, College of Environment and Ecology, Chongqing University, Chongqing, 400045, China
| | - Zhiyu Shao
- Key Laboratory of the Three Gorges Reservoir Region, Ministry of Education, College of Environment and Ecology, Chongqing University, Chongqing, 400045, China
| | - Lei Chen
- Key Laboratory of the Three Gorges Reservoir Region, Ministry of Education, College of Environment and Ecology, Chongqing University, Chongqing, 400045, China
| | - Hong Chen
- Key Laboratory of the Three Gorges Reservoir Region, Ministry of Education, College of Environment and Ecology, Chongqing University, Chongqing, 400045, China
| | - Yunsong Yuan
- Key Laboratory of the Three Gorges Reservoir Region, Ministry of Education, College of Environment and Ecology, Chongqing University, Chongqing, 400045, China
| | - Fujian Liu
- China Construction Installation Group Co. LTD, Nanjing, 210023, China
| | - Yanhong Xu
- China Construction Installation Group Co. LTD, Nanjing, 210023, China
| | - Qichang Ni
- China Construction Installation Group Co. LTD, Nanjing, 210023, China
| | - Shihu Hu
- Australian Centre for Water and Environmental Biotechnology, The University of Queensland, St Lucia, QLD, 4072, Australia
| | - Hongxiang Chai
- Key Laboratory of the Three Gorges Reservoir Region, Ministry of Education, College of Environment and Ecology, Chongqing University, Chongqing, 400045, China.
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Yan Z, Yang S, Chen L, Zou Y, Zhao Y, Yan G, Wang H, Wu Y. Responses of soil fungal community composition and function to wetland degradation in the Songnen Plain, northeastern China. FRONTIERS IN PLANT SCIENCE 2024; 15:1441613. [PMID: 39315367 PMCID: PMC11416943 DOI: 10.3389/fpls.2024.1441613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2024] [Accepted: 08/19/2024] [Indexed: 09/25/2024]
Abstract
Introduction Wetlands are ecosystems that have a significant impact on ecological services and are essential for the environment. With the impacts of rapid population growth, wetland reclamation, urbanization, and land use change, wetlands have undergo severe degradation or loss. However, the response of soil fungal communities to wetland degradation remains unknown. It is crucial to comprehend how the diversity and population dynamics of soil fungi respond to varying levels of degradation and ecological progression in the wetlands of the Songnen Plain. Methods In this study, high- throughput sequencing technology to analyze the variety and abundance of soil fungi in the undegraded (UD), light degraded (LD), moderate degraded (MD), and severe degraded (SD) conditions in the Halahai Nature Reserve of Songnen Plain. This study also explored how these fungi are related to the soil's physicochemical properties in wetlands at various degradation levels. Results The findings indicated that Basidiomycota and Ascomycota were the primary phyla in the Songnen Plain, with Ascomycota increasing and Basidiomycota decreasing as wetland degradation progressed. Significant differences were observed in soil organic carbon (SOC), total nitrogen (TN),and soil total potassium (TK) among the succession degradation stages. With the deterioration of the wetland, there was a pattern of the Shannon and Chao1 indices increasing and then decreasing. Non-metric Multidimensional Scaling (NMDS) analysis indicated that the fungal community structures of UD and LD were quite similar, whereas MD and SD exhibited more distinct differences in their fungal community compositions. Redundancy analysis (RDA) results indicated that Soil Water content (SWC) and total nitrogen (TN) were the primary environmental factors influencing the dominant fungal phylum. According to the FUNGuild prediction, Ectomycorrhizal and plant pathogens gradually declining with wetland degradation. Discussion In general, our findings can offer theoretical support develop effective solutions for the preservation and rehabilitation of damaged wetlands.
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Affiliation(s)
- Zhizhi Yan
- College of Wildlife and Protected Area, Northeast Forestry University, Harbin, China
| | - Shuhan Yang
- College of Wildlife and Protected Area, Northeast Forestry University, Harbin, China
| | - Lei Chen
- College of Wildlife and Protected Area, Northeast Forestry University, Harbin, China
| | - Yu Zou
- College of Pharmacy, Qiqihar Medical University, Qiqihar, China
| | - Yupeng Zhao
- College of Wildlife and Protected Area, Northeast Forestry University, Harbin, China
| | - Guang Yan
- Halahai Provincial Nature Reserve, Qiqihar, China
| | - He Wang
- College of Wildlife and Protected Area, Northeast Forestry University, Harbin, China
| | - Yining Wu
- College of Wildlife and Protected Area, Northeast Forestry University, Harbin, China
- Heilongjiang Academy of Sciences Institute of Natural Resources and Ecology, Harbin, China
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Liu J, Qian Y, Yang W, Yang M, Zhang Y, Duan B, Yang Y, Tao A, Xia C. Elucidating the interaction of rhizosphere microorganisms and environmental factors influencing the quality of Polygonatum kingianum Coll. et Hemsl. Sci Rep 2024; 14:19092. [PMID: 39154075 PMCID: PMC11330475 DOI: 10.1038/s41598-024-69673-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2024] [Accepted: 08/07/2024] [Indexed: 08/19/2024] Open
Abstract
Polygonatum kingianum Collett & Hemsl., is one of the most important traditional Chinese medicines in China. The purpose of this study is to investigate the relationship between herb quality and microbial-soil variables, while also examining the composition and structure of the rhizosphere microbial community in Polygonatum kingianum, the ultimate goal is to provide a scientific approach to enhancing the quality of P. kingianum. Illumina NovaSeq technology unlocks comprehensive genetic variation and biological functionality through high-throughput sequencing. And in this study it was used to analyze the rhizosphere microbial communities in the soils of five P. kingianum planting areas. Conventional techniques were used to measure the organic elements, pH, and organic matter content. The active ingredient content of P. kingianum was identified by High Performance Liquid Chromatography (HPLC) and Colorimetry. A total of 12,715 bacterial and 5487 fungal Operational Taxonomic Units (OTU) were obtained and taxonomically categorized into 81 and 7 different phyla. Proteobacteria, Bacteroidetes, and Acidobacteriae were the dominant bacterial phyla Ascomycota and Basidiomycota were the dominat fungal phyla. The key predictors for bacterial community structure included hydrolysable nitrogen and available potassium, while for altering fungal community structure, soil organic carbon content (OCC), total nitrogen content (TNC), and total potassium content (TPOC) were the main influencing factors. Bryobacter and Candidatus Solibacter may indirectly increase the polysaccharide content of P. kingianum, and can be developed as potential Plant Growth Promoting Rhizobacteria (PGPR). This study has confirmed the differences in the soil and microorganisms of different origins of P. kingianum, and their close association with its active ingredients. And it also broadens the idea of studying the link between plants and microorganisms.
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Affiliation(s)
- Jiahao Liu
- College of Pharmaceutical Science, Dali University, Dali, 671000, China
- Western Yunnan Traditional Chinese Medicine and Ethnic Drug Engineering Center, Dali, 671000, China
| | - Yan Qian
- College of Pharmaceutical Science, Dali University, Dali, 671000, China
- Western Yunnan Traditional Chinese Medicine and Ethnic Drug Engineering Center, Dali, 671000, China
| | - Wanqing Yang
- College of Pharmaceutical Science, Dali University, Dali, 671000, China
- Western Yunnan Traditional Chinese Medicine and Ethnic Drug Engineering Center, Dali, 671000, China
| | - Meihua Yang
- College of Pharmaceutical Science, Dali University, Dali, 671000, China
- Western Yunnan Traditional Chinese Medicine and Ethnic Drug Engineering Center, Dali, 671000, China
| | - Yue Zhang
- College of Pharmaceutical Science, Dali University, Dali, 671000, China
- Western Yunnan Traditional Chinese Medicine and Ethnic Drug Engineering Center, Dali, 671000, China
| | - Baozhong Duan
- College of Pharmaceutical Science, Dali University, Dali, 671000, China
- Western Yunnan Traditional Chinese Medicine and Ethnic Drug Engineering Center, Dali, 671000, China
| | - Yongcheng Yang
- College of Pharmaceutical Science, Dali University, Dali, 671000, China.
- Western Yunnan Traditional Chinese Medicine and Ethnic Drug Engineering Center, Dali, 671000, China.
| | - Aien Tao
- College of Medicine, Lijiang Culture and Tourism College, Lijiang, 674100, China.
| | - Conglong Xia
- College of Pharmaceutical Science, Dali University, Dali, 671000, China.
- Western Yunnan Traditional Chinese Medicine and Ethnic Drug Engineering Center, Dali, 671000, China.
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Hoang DQ, Wilson LR, Scheftgen AJ, Suen G, Currie CR. Disturbance-diversity relationships of microbial communities change based on growth substrate. mSystems 2024; 9:e0088723. [PMID: 38259105 PMCID: PMC10878081 DOI: 10.1128/msystems.00887-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 12/18/2023] [Indexed: 01/24/2024] Open
Abstract
Disturbance events can impact ecological community dynamics. Understanding how communities respond to disturbances and how those responses can vary is a challenge in microbial ecology. In this study, we grew a previously enriched specialized microbial community on either cellulose or glucose as a sole carbon source and subjected them to one of five different disturbance regimes of varying frequencies ranging from low to high. Using 16S rRNA gene amplicon sequencing, we show that the community structure is largely driven by substrate, but disturbance frequency affects community composition and successional dynamics. When grown on cellulose, bacteria in the genera Cellvibrio, Lacunisphaera, and Asticcacaulis are the most abundant microbes. However, Lacunisphaera is only abundant in the lower disturbance frequency treatments, while Asticcacaulis is more abundant in the highest disturbance frequency treatment. When grown on glucose, the most abundant microbes are two Pseudomonas sequence variants and a Cohnella sequence variant that is only abundant in the highest disturbance frequency treatment. Communities grown on cellulose exhibited a greater range of diversity (1.95-7.33 Hill 1 diversity) that peaks at the intermediate disturbance frequency treatment or one disturbance every 3 days. Communities grown on glucose, however, ranged from 1.63 to 5.19 Hill 1 diversity with peak diversity at the greatest disturbance frequency treatment. These results demonstrate that the dynamics of a microbial community can vary depending on substrate and the disturbance frequency and may potentially explain the variety of diversity-disturbance relationships observed in microbial systems.IMPORTANCEA generalizable diversity-disturbance relationship (DDR) of microbial communities remains a contentious topic. Various microbial systems have different DDRs. Rather than finding support or refuting specific DDRs, we investigated the underlying factors that lead to different DDRs. In this study, we measured a cellulose-enriched microbial community's response to a range of disturbance frequencies from high to low, across two different substrates: cellulose and glucose. We demonstrate that the community displays a unimodal DDR when grown on cellulose and a monotonically increasing DDR when grown on glucose. Our findings suggest that the same community can display different DDRs. These results suggest that the range of DDRs we observe across different microbial systems may be due to the nutritional resources microbial communities can access and the interactions between bacteria and their environment.
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Affiliation(s)
- Don Q. Hoang
- Department of Bacteriology, University of Wisconsin–Madison, Madison, Wisconsin, USA
- Department of Energy Great Lakes Bioenergy Research Center, University of Wisconsin–Madison, Madison, Wisconsin, USA
- Microbiology Doctoral Training Program, University of Wisconsin–Madison, Madison, Wisconsin, USA
| | - Lindsay R. Wilson
- Department of Bacteriology, University of Wisconsin–Madison, Madison, Wisconsin, USA
- Department of Energy Great Lakes Bioenergy Research Center, University of Wisconsin–Madison, Madison, Wisconsin, USA
- Department of Pediatrics, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Andrew J. Scheftgen
- Department of Bacteriology, University of Wisconsin–Madison, Madison, Wisconsin, USA
| | - Garret Suen
- Department of Bacteriology, University of Wisconsin–Madison, Madison, Wisconsin, USA
| | - Cameron R. Currie
- Department of Bacteriology, University of Wisconsin–Madison, Madison, Wisconsin, USA
- Department of Energy Great Lakes Bioenergy Research Center, University of Wisconsin–Madison, Madison, Wisconsin, USA
- Department of Biochemistry & Biomedical Sciences, M.G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, Ontario, Canada
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Hoang DQ, Wilson LR, Scheftgen AJ, Suen G, Currie CR. Disturbance-Diversity Relationships of Microbial Communities Change Based on Growth Substrate. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.08.25.554838. [PMID: 37662195 PMCID: PMC10473689 DOI: 10.1101/2023.08.25.554838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/05/2023]
Abstract
Disturbance events can impact ecological community dynamics. Understanding how communities respond to disturbances, and how those responses can vary, is a challenge in microbial ecology. In this study, we grew a previously enriched specialized microbial community on either cellulose or glucose as a sole carbon source, and subjected them to one of five different disturbance regimes of varying frequencies ranging from low to high. Using 16S rRNA gene amplicon sequencing, we show that community structure is largely driven by substrate, but disturbance frequency affects community composition and successional dynamics. When grown on cellulose, bacteria in the genera Cellvibrio, Lacunisphaera, and Asticaccacaulis are the most abundant microbes. However, Lacunisphaera is only abundant in the lower disturbance frequency treatments, while Asticaccaulis is more abundant in the highest disturbance frequency treatment. When grown on glucose, the most abundant microbes are two Pseudomonas sequence variants, and a Cohnella sequence variant that is only abundant in the highest disturbance frequency treatment. Communities grown on cellulose exhibited a greater range of diversity (0.67-1.99 Shannon diversity and 1.38-5.25 Inverse Simpson diversity) that peak at the intermediate disturbance frequency treatment, or 1 disturbance every 3 days. Communities grown on glucose, however, ranged from 0.49-1.43 Shannon diversity and 1.37- 3.52 Inverse Simpson with peak diversity at the greatest disturbance frequency treatment. These results demonstrate that the dynamics of a microbial community can vary depending on substrate and the disturbance frequency, and may potentially explain the variety of diversity-disturbance relationships observed in microbial ecosystems.
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Affiliation(s)
- Don Q Hoang
- Department of Bacteriology, University of Wisconsin-Madison, Madison, Wisconsin, USA
- Department of Energy Great Lakes Bioenergy Research Center, University of Wisconsin-Madison, Madison, Wisconsin, USA
- Microbiology Doctoral Training Program, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Lindsay R Wilson
- Department of Bacteriology, University of Wisconsin-Madison, Madison, Wisconsin, USA
- Department of Energy Great Lakes Bioenergy Research Center, University of Wisconsin-Madison, Madison, Wisconsin, USA
- Department of Pediatrics, University of Pittsburgh, Pittsburgh, PA, USA
| | - Andrew J Scheftgen
- Department of Bacteriology, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Garret Suen
- Department of Bacteriology, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Cameron R Currie
- Department of Bacteriology, University of Wisconsin-Madison, Madison, Wisconsin, USA
- Department of Energy Great Lakes Bioenergy Research Center, University of Wisconsin-Madison, Madison, Wisconsin, USA
- M.G. DeGroote Institute for Infectious Disease Research, Department of Biochemistry & Biomedical Sciences, McMaster University, Hamilton, ON, Canada
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Zhao W, Wang DD, Huang KC, Liu S, Reyila M, Sun YF, Li JN, Cui BK. Seasonal variation in the soil fungal community structure of Larix gmelinii forests in Northeast China. Front Microbiol 2023; 14:1106888. [PMID: 37032849 PMCID: PMC10073431 DOI: 10.3389/fmicb.2023.1106888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 03/06/2023] [Indexed: 04/11/2023] Open
Abstract
Soil fungi play an indispensable role in forest ecosystems by participating in energy flow, material circulation, and assisting plant growth and development. Larix gmelinii is the dominant tree species in the greater Khingan Mountains, which is the only cold temperate coniferous forest in China. Understanding the variations in underground fungi will help us master the situation of L. gmelinii above ground. We collected soil samples from three seasons and analyzed the differences in soil fungal community structure using high-throughput sequencing technology to study the seasonal changes in soil fungal community structure in L. gmelinii forests. We found that the Shannon and Chao1 diversity in autumn was significantly lower than in spring and summer. The community composition and functional guild varied significantly between seasons. Furthermore, we showed that ectomycorrhizal fungi dominated the functional guilds. The relative abundance of ectomycorrhizal fungi increased dramatically from summer to autumn and was significantly negatively correlated with temperature and precipitation. Temperature and precipitation positively affect the alpha diversity of fungi significantly. In addition, pH was negatively correlated with the Chao1 diversity. Temperature and precipitation significantly affected several dominant genera and functional guilds. Among the soil physicochemical properties, several dominant genera were affected by pH, and the remaining individual genera and functional guilds were significantly correlated with total nitrogen, available phosphorus, soil organic carbon, or cation exchange capacity. For the composition of total fungal community, temperature and precipitation, as well as soil physicochemical properties except AP, significantly drove the variation in community composition.
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Wild Boar Effects on Fungal Abundance and Guilds from Sporocarp Sampling in a Boreal Forest Ecosystem. Animals (Basel) 2022; 12:ani12192521. [PMID: 36230261 PMCID: PMC9558969 DOI: 10.3390/ani12192521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 09/15/2022] [Accepted: 09/17/2022] [Indexed: 11/17/2022] Open
Abstract
Simple Summary Native wild boar populations are expanding across Europe, causing concern due to their significant soil disturbances and considerable impact on ecosystems. However, little is known about how wild boar activities affect other organisms. This study investigated the effects of wild boars on the abundance of fungal sporocarps and their respective fungal guilds (i.e., symbiotic, saprophytic and pathogenic) in boreal forests in Sweden. We selected 11 forested sites in central Sweden: six with and five without the presence of wild boar. We determined the presence or absence of wild boar and rooting intensity at each site. Simultaneously, we investigated the abundance of fungal sporocarps and their fungal guilds. We found that the presence of wild boar and rooting intensity were associated with the abundance of fungal sporocarps. Wild boar rooting was positively correlated with saprotrophic fungi and negatively with symbiotic fungi. Pathogenic fungi were more abundant in plots with no rooting but in the presence of wild boar. We conclude that wild boar represents a recurrent disturbance agent and, based on sporocarp abundance, could eventually affect entire fungal populations. Abstract Native wild boar (Sus scrofa) populations are expanding across Europe. This is cause for concern in some areas where overabundant populations impact natural ecosystems and adjacent agronomic systems. To better manage the potential for impacts, managers require more information about how the species may affect other organisms. For example, information regarding the effect of wild boar on soil fungi for management application is lacking. Soil fungi play a fundamental role in ecosystems, driving essential ecological functions; acting as mycorrhizal symbionts, sustaining plant nutrition and providing defense; as saprotrophs, regulating the organic matter decomposition; or as plant pathogens, regulating plant fitness and survival. During autumn (Sep–Nov) 2018, we investigated the effects of wild boar (presence/absence and rooting intensity) on the abundance (number of individuals) of fungal sporocarps and their functional guilds (symbiotic, saprotrophic and pathogenic). We selected eleven forested sites (400–500 × 150–200 m) in central Sweden; six with and five without the presence of wild boar. Within each forest, we selected one transect (200 m long), and five plots (2 × 2 m each) for sites without wild boar, and ten plots for sites with boars (five within and five outside wild boar disturbances), to determine the relationship between the intensity of rooting and the abundance of sporocarps for three fungal guilds. We found that the presence of wild boar and rooting intensity were associated with the abundance of sporocarps. Interestingly, this relationship varied depending on the fungal guild analyzed, where wild boar rooting had a positive correlation with saprophytic sporocarps and a negative correlation with symbiotic sporocarps. Pathogenic fungi, in turn, were more abundant in undisturbed plots (no rooting) but located in areas with the presence of wild boar. Our results indicate that wild boar activities can potentially regulate the abundance of fungal sporocarps, with different impacts on fungal guilds. Therefore, wild boar can affect many essential ecosystem functions driven by soil fungi in boreal forests, such as positive effects on energy rotation and in creating mineral availability to plants, which could lead to increased diversity of plants in boreal forests.
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Yang W, Diao L, Wang Y, Yang X, Zhang H, Wang J, Luo Y, An S, Cheng X. Responses of soil fungal communities and functional guilds to ~160 years of natural revegetation in the Loess Plateau of China. Front Microbiol 2022; 13:967565. [PMID: 36118195 PMCID: PMC9479326 DOI: 10.3389/fmicb.2022.967565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 08/01/2022] [Indexed: 12/03/2022] Open
Abstract
Natural revegetation has been widely confirmed to be an effective strategy for the restoration of degraded lands, particularly in terms of rehabilitating ecosystem productivity and soil nutrients. Yet the mechanisms of how natural revegetation influences the variabilities and drivers of soil residing fungal communities, and its downstream effects on ecosystem nutrient cycling are not well understood. For this study, we investigated changes in soil fungal communities along with ~160 years of natural revegetation in the Loess Plateau of China, employing Illumina MiSeq DNA sequencing analyses. Our results revealed that the soil fungal abundance was greatly enhanced during the later stages of revegetation. As revegetation progresses, soil fungal richness appeared first to rise and then decline at the climax Quercus liaotungensis forest stage. The fungal Shannon and Simpson diversity indexes were the lowest and highest at the climax forest stage among revegetation stages, respectively. Principal component analysis, Bray–Curtis similarity indices, and FUNGuild function prediction suggested that the composition, trophic modes, and functional groups for soil fungal communities gradually shifted along with natural revegetation. Specifically, the relative abundances of Basidiomycota, Agaricomycetes, Eurotiomycetes, and ectomycorrhizal fungi progressively increased, while that of Ascomycota, Sordariomycetes, Dothideomycetes, Tremellomycetes, saprotrophic, pathotrophic, arbuscular mycorrhizal fungi, and endophyte fungi gradually decreased along with natural revegetation, respectively. The most enriched members of Basidiomycota (e.g., Agaricomycetes, Agaricales, Cortinariaceae, Cortinarius, Sebacinales, Sebacinaceae, Tricholomataceae, Tricholoma, Russulales, and Russulaceae) were found at the climax forest stage. As important carbon (C) sources, the most enriched symbiotic fungi (particularly ectomycorrhizal fungi containing more recalcitrant compounds) can promote organic C and nitrogen (N) accumulation in soils of climax forest. However, the most abundant of saprotrophic fungi in the early stages of revegetation decreased soil organic C and N accumulation by expediting the decomposition of soil organic matter. Our results suggest that natural revegetation can effectively restore soil fungal abundance, and modify soil fungal diversity, community composition, trophic modes, and functional groups by altering plant properties (e.g., plant species richness, diversity, evenness, litter quantity and quality), quantity and quality of soil nutrient substrates, soil moisture and pH. These changes in soil fungal communities, particularly their trophic modes and functional groups along with natural revegetation, impact the accumulation and decomposition of soil C and N and potentially affect ecosystem C and N cycling in the Loess Plateau of China.
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Affiliation(s)
- Wen Yang
- College of Life Sciences, Shaanxi Normal University, Xi'an, China
- *Correspondence: Wen Yang,
| | - Longfei Diao
- College of Life Sciences, Shaanxi Normal University, Xi'an, China
| | - Yaqi Wang
- College of Life Sciences, Shaanxi Normal University, Xi'an, China
| | - Xitong Yang
- College of Life Sciences, Shaanxi Normal University, Xi'an, China
| | - Huan Zhang
- College of Life Sciences, Shaanxi Normal University, Xi'an, China
| | - Jinsong Wang
- Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China
| | - Yiqi Luo
- Department of Biological Sciences, Center for Ecosystem Science and Society, Northern Arizona University, Flagstaff, AZ, United States
| | - Shuqing An
- School of Life Sciences, Nanjing University, Nanjing, China
| | - Xiaoli Cheng
- School of Ecology and Environmental Sciences, Yunnan University, Kunming, China
- Xiaoli Cheng,
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Rhizosphere Microbial Communities and Geochemical Constraining Mechanism of Antimony Mine Waste-Adapted Plants in Southwestern China. Microorganisms 2022; 10:microorganisms10081507. [PMID: 35893564 PMCID: PMC9330434 DOI: 10.3390/microorganisms10081507] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 07/21/2022] [Accepted: 07/22/2022] [Indexed: 02/04/2023] Open
Abstract
Antimony (Sb) and arsenic (As) are two hazardous metalloid elements, and the biogeochemical cycle of Sb and As can be better understood by studying plant rhizosphere microorganisms associated with Sb mine waste. In the current study, samples of three types of mine waste—Sb mine tailing, waste rocks, and smelting slag—and associated rhizosphere microorganisms of adapted plants were collected from Qinglong Sb mine, southwest China. 16S rRNA was sequenced and used to study the composition of the mine waste microbial community. The most abundant phylum in all samples was Proteobacteria, followed by Bacteroidota, Acidobacteriota, and Actinobacteriota. The community composition varied among different mine waste types. Gammaproteobacteria was the most abundant microorganism in tailings, Actinobacteria was mainly distributed in waste rock, and Saccharimonadia, Acidobacteriae, and Ktedonobacteria were mainly present in slag. At the family level, the vast majority of Hydrogenophilaceae were found in tailings, Ktedonobacteraceae, Chthoniobacteraceae, and Acidobacteriaceae (Subgroup 1) were mostly found in slag, and Pseudomonadaceae and Micrococcaceae were mainly found in waste rock. Actinobacteriota and Arthrobacter are important taxa for reducing heavy metal(loid) mobility, vegetation restoration, and self-sustaining ecosystem construction on antimony mine waste. The high concentrations of Sb and As reduce microbial diversity.
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Dea HI, Urban A, Kazarina A, Houseman GR, Thomas SG, Loecke T, Greer MJ, Platt TG, Lee S, Jumpponen A. Precipitation, Not Land Use, Primarily Determines the Composition of Both Plant and Phyllosphere Fungal Communities. FRONTIERS IN FUNGAL BIOLOGY 2022; 3:805225. [PMID: 37746168 PMCID: PMC10512219 DOI: 10.3389/ffunb.2022.805225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Accepted: 06/10/2022] [Indexed: 09/26/2023]
Abstract
Plant communities and fungi inhabiting their phyllospheres change along precipitation gradients and often respond to changes in land use. Many studies have focused on the changes in foliar fungal communities on specific plant species, however, few have addressed the association between whole plant communities and their phyllosphere fungi. We sampled plant communities and associated phyllosphere fungal communities in native prairie remnants and post-agricultural sites across the steep precipitation gradient in the central plains in Kansas, USA. Plant community cover data and MiSeq ITS2 metabarcode data of the phyllosphere fungal communities indicated that both plant and fungal community composition respond strongly to mean annual precipitation (MAP), but less so to land use (native prairie remnants vs. post-agricultural sites). However, plant and fungal diversity were greater in the native remnant prairies than in post-agricultural sites. Overall, both plant and fungal diversity increased with MAP and the communities in the arid and mesic parts of the gradient were distinct. Analyses of the linkages between plant and fungal communities (Mantel and Procrustes tests) identified strong correlations between the composition of the two. However, despite the strong correlations, regression models with plant richness, diversity, or composition (ordination axis scores) and land use as explanatory variables for fungal diversity and evenness did not improve the models compared to those with precipitation and land use (ΔAIC < 2), even though the explanatory power of some plant variables was greater than that of MAP as measured by R2. Indicator taxon analyses suggest that grass species are the primary taxa that differ in the plant communities. Similar analyses of the phyllosphere fungi indicated that many plant pathogens are disproportionately abundant either in the arid or mesic environments. Although decoupling the drivers of fungal communities and their composition - whether abiotic or host-dependent - remains a challenge, our study highlights the distinct community responses to precipitation and the tight tracking of the plant communities by their associated fungal symbionts.
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Affiliation(s)
- Hannah I. Dea
- Division of Biology, Kansas State University, Manhattan, KS, United States
| | - Abigail Urban
- Department of Biological Sciences, Wichita State University, Wichita, KS, United States
| | - Anna Kazarina
- Division of Biology, Kansas State University, Manhattan, KS, United States
| | - Gregory R. Houseman
- Department of Biological Sciences, Wichita State University, Wichita, KS, United States
| | - Samantha G. Thomas
- Kansas Biological Survey and Center for Ecological Research, University of Kansas, Lawrence, KS, United States
| | - Terry Loecke
- Kansas Biological Survey and Center for Ecological Research, University of Kansas, Lawrence, KS, United States
- Environmental Studies Program, University of Kansas, Lawrence, KS, United States
| | - Mitchell J. Greer
- Department of Agriculture and Nutrition Science, Southern Utah University, Cedar City, UT, United States
| | - Thomas G. Platt
- Division of Biology, Kansas State University, Manhattan, KS, United States
| | - Sonny Lee
- Division of Biology, Kansas State University, Manhattan, KS, United States
| | - Ari Jumpponen
- Division of Biology, Kansas State University, Manhattan, KS, United States
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11
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Li Y, Wang T, Camps-Arbestain M, Whitby CP. The regulators of soil organic carbon mineralization upon lime and/or phosphate addition vary with depth. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 828:154378. [PMID: 35276156 DOI: 10.1016/j.scitotenv.2022.154378] [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: 07/20/2021] [Revised: 03/01/2022] [Accepted: 03/03/2022] [Indexed: 06/14/2023]
Abstract
Knowledge of the key factors regulating soil organic carbon (OC) mineralization in response to fertilizers and lime application is essential to understanding the effects of agricultural land management on soil OC preservation. Microbial community composition and OC availability to microorganisms have been proposed as the two most imperative factors controlling soil OC mineralization, although their relative importance is still under debate. Here we performed a laboratory incubation in combination with high-throughput sequencing and structural equation modeling to examine the mechanisms underlying the responses of OC mineralization in the topsoil and the subsoil of a volcanic soil (an Andosol) to the additions of lime and/or phosphate. Results showed that lime and/or phosphate additions induced distinct shifts in the microbial community composition and functional profiles in the topsoil and the subsoil. We found that OC mineralization relied on microbial community composition and functionality in the topsoil but was strongly related to the quality and quantity of the water-extractable OC (indicative of the OC availability) in the subsoil. These data suggest that the key regulator controlling the response of OC mineralization to lime and/or P additions shifts from microbial community composition to OC availability as soil depth increases in the Andosol. Our findings highlight the central role of mechanisms controlling soil OC mineralization in regulating the responses of mineralization to intensive agricultural management practices.
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Affiliation(s)
- Yang Li
- School of Agriculture and Environment, Massey University, Private Bag 11222, Palmerston North 4442, New Zealand
| | - Tao Wang
- CAS Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China.
| | - Marta Camps-Arbestain
- School of Agriculture and Environment, Massey University, Private Bag 11222, Palmerston North 4442, New Zealand
| | - Catherine P Whitby
- School of Fundamental Sciences, Massey University, Private Bag 11222, Palmerston North 4442, New Zealand
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12
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Ji C, Huang J, Yu H, Tian Y, Rao X, Zhang X. Do the Reclaimed Fungal Communities Succeed Toward the Original Structure in Eco-Fragile Regions of Coal Mining Disturbances? A Case Study in North China Loess—Aeolian Sand Area. Front Microbiol 2022; 13:770715. [PMID: 35432266 PMCID: PMC9010878 DOI: 10.3389/fmicb.2022.770715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Accepted: 02/07/2022] [Indexed: 11/25/2022] Open
Abstract
Mining activity has caused serious environmental damage, particularly for soil ecosystems. How the soil fungal community evolves in mine reclamation and what are the succession patterns of molecular ecological networks still needs to be studied in depth. We used high-throughput sequencing to explore the changes in soil fungal communities, molecular ecological networks, and interactions with soil environmental factors in five different ages (the including control group) during 14 years of reclamation in eco-fragile mines. The results showed that the abundance and diversity of soil fungi after 14 years of reclamation were close to, but still lower than, those in the undisturbed control area, but the dominant phylum was Ascomycota. Soil nitrate-N, C/N ratio, pH, and water content significantly affected the fungal community with increasing reclamation ages. Moreover, we found that Mortierellomycota, despite its high relative abundance, had little significant connectivity with other species in the molecular ecological network. Fungal molecular ecological networks evolve with increasing ages of reclamation, with larger modules, more positive connections, and tighter networks, forming large modules of more than 60 nodes by age 9. The large modules were composed mainly of Ascomycota and Basidiomycota, which can form mycorrhiza with plant roots, and are not only capable of degrading pollution but are also “encouraged” by most (more than 64%) physicochemical factors in the soil environment. The results can provide a basis for scientific mine ecological restoration, especially for eco-fragile regions.
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Affiliation(s)
- Chuning Ji
- Engineering Research Center of Ministry of Education for Mine Ecological Restoration, China University of Mining and Technology, Xuzhou, China
- School of Environment and Spatial Informatics, China University of Mining and Technology, Xuzhou, China
| | - Jiu Huang
- Engineering Research Center of Ministry of Education for Mine Ecological Restoration, China University of Mining and Technology, Xuzhou, China
- School of Environment and Spatial Informatics, China University of Mining and Technology, Xuzhou, China
- *Correspondence: Jiu Huang,
| | - Haochen Yu
- Engineering Research Center of Ministry of Education for Mine Ecological Restoration, China University of Mining and Technology, Xuzhou, China
- School of Public Policy and Management, China University of Mining and Technology, Xuzhou, China
| | - Yu Tian
- Engineering Research Center of Ministry of Education for Mine Ecological Restoration, China University of Mining and Technology, Xuzhou, China
- School of Environment and Spatial Informatics, China University of Mining and Technology, Xuzhou, China
| | - Xunzheng Rao
- Engineering Research Center of Ministry of Education for Mine Ecological Restoration, China University of Mining and Technology, Xuzhou, China
- School of Environment and Spatial Informatics, China University of Mining and Technology, Xuzhou, China
| | - Xin Zhang
- School of Earth Sciences and Resources, China University of Geosciences, Beijing, China
- Macau Environmental Research Institute, Macau University of Science and Technology, Macau, China
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13
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Zhang W, Bahadur A, Sajjad W, Wu X, Zhang G, Liu G, Chen T. Seasonal Variation in Fungal Community Composition Associated with Tamarix chinensis Roots in the Coastal Saline Soil of Bohai Bay, China. MICROBIAL ECOLOGY 2021; 82:652-665. [PMID: 33598747 DOI: 10.1007/s00248-021-01680-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Accepted: 01/04/2021] [Indexed: 06/12/2023]
Abstract
Coastal salinity typically alters the soil microbial communities, which subsequently affect the biogeochemical cycle of nutrients in the soil. The seasonal variation of the soil fungal communities in the coastal area, closely associated with plant population, is poorly understood. This study provides an insight into the fungal community's variations from autumn to winter and spring to summer at a well-populated area of salt-tolerant Tamarix chinensis and beach. The richness and diversity of fungal community were higher in the spring season and lower in the winter season, as showed by high throughput sequencing of the 18S rRNA gene. Ascomycota was the predominant phylum reported in all samples across the region, and higher difference was reported at order level across the seasonal variations. The redundancy analysis suggested that the abundance and diversity of fungal communities in different seasons are mainly correlated to total organic carbon and total nitrogen. Additionally, the saprotrophic and pathotrophic fungi decreased while symbiotic fungi increased in the autumn season. This study provides a pattern of seasonal variation in fungal community composition that further broadens our limited understanding of how the density of the salt-tolerant T. chinensis population of the coastal saline soil could respond to their seasonal variations.
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Affiliation(s)
- Wei Zhang
- Key Laboratory of Desert and Desertification, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China
- Key Laboratory of Extreme Environmental Microbial Resources and Engineering, Lanzhou, 730000, Gansu Province, China
| | - Ali Bahadur
- Key Laboratory of Extreme Environmental Microbial Resources and Engineering, Lanzhou, 730000, Gansu Province, China
- State Key Laboratory of Cryospheric Science, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - Wasim Sajjad
- State Key Laboratory of Cryospheric Science, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - Xiukun Wu
- Key Laboratory of Desert and Desertification, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China
- Key Laboratory of Extreme Environmental Microbial Resources and Engineering, Lanzhou, 730000, Gansu Province, China
| | - Gaosen Zhang
- Key Laboratory of Desert and Desertification, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China
- Key Laboratory of Extreme Environmental Microbial Resources and Engineering, Lanzhou, 730000, Gansu Province, China
| | - Guangxiu Liu
- Key Laboratory of Desert and Desertification, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China.
- Key Laboratory of Extreme Environmental Microbial Resources and Engineering, Lanzhou, 730000, Gansu Province, China.
| | - Tuo Chen
- State Key Laboratory of Cryospheric Science, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China.
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14
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Tayyab M, Yang Z, Zhang C, Islam W, Lin W, Zhang H. Sugarcane monoculture drives microbial community composition, activity and abundance of agricultural-related microorganisms. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:48080-48096. [PMID: 33904129 DOI: 10.1007/s11356-021-14033-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Accepted: 04/16/2021] [Indexed: 05/28/2023]
Abstract
Sugarcane monoculture (SM) often leads to soil problems, like soil acidification, degradation, and soil-borne diseases, which ultimately pose a negative impact on agricultural productivity and sustainability. Understanding the change in microbial communities' composition, activities, and functional microbial taxa associated with the plant and soil under SM is unclear. Using multidisciplinary approaches such as Illumina sequencing, measurements of soil properties, and enzyme activities, we analyzed soil samples from three sugarcane fields with different monoculture histories (1-, 2-, and 4-year cultivation times, respectively). We observed that SM induced soil acidity and had adverse effects on soil fertility, i.e., soil organic matter (OM), total nitrogen (TN), total carbon (TC), and available potassium (AK), as well as enzyme activities indicative for carbon, phosphorus, and nitrogen cycles. Non-metric multidimensional scaling (NMDS) analysis showed that SM time greatly affected soil attribute patterns. We observed strong correlation among soil enzymes activities and soil physiochemical properties (soil pH, OM, and TC). Alpha diversity analysis showed a varying response of the microbes to SM time. Bacterial diversity increased with increasing oligotrophs (e.g., Acidobacteria and Chloroflexi), while fungal diversity decreased with reducing copiotrophs (e.g., Ascomycota). β-Diversity analysis showed that SM time had a great influence on soil microbial structure and soil properties, which led to the changes in major components of microbial structure (soil pH, OM, TC, bacteria and soil pH; TC, fungi). Additionally, SM time significantly stimulated (four bacterial and ten fungal) and depleted (12 bacterial and three fungal) agriculturally and ecologically important microbial genera that were strongly and considerably correlated with soil characteristics (soil pH, OM, TC, and AK). In conclusion, SM induces soil acidity, reduces soil fertility, shifts microbial structure, and reduces its activity. Furthermore, most beneficial bacterial genera decreased significantly due to SM, while beneficial fungal genera showed a reverse trend. Therefore, mitigating soil acidity, improving soil fertility, and soil enzymatic activities, including improved microbial structure with beneficial service to plants and soil, can be an effective measure to develop a sustainable sugarcane cropping system.
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Affiliation(s)
- Muhammad Tayyab
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
- College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
- Fujian Provincial Key Laboratory of Agro-ecological Processing and Safety Monitoring, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
- Key Laboratory of Crop Ecology and Molecular Physiology, Fujian Agriculture and Forestry University, Fuzhou, 35002, China
| | - Ziqi Yang
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
- College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Caifang Zhang
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
- College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Waqar Islam
- College of Geography, Fujian Normal University, Fuzhou, 350007, China
| | - Wenxiong Lin
- College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.
- Fujian Provincial Key Laboratory of Agro-ecological Processing and Safety Monitoring, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.
- Key Laboratory of Crop Ecology and Molecular Physiology, Fujian Agriculture and Forestry University, Fuzhou, 35002, China.
| | - Hua Zhang
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.
- College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.
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15
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Baruch Z, Liddicoat C, Cando-Dumancela C, Laws M, Morelli H, Weinstein P, Young JM, Breed MF. Increased plant species richness associates with greater soil bacterial diversity in urban green spaces. ENVIRONMENTAL RESEARCH 2021; 196:110425. [PMID: 33157108 DOI: 10.1016/j.envres.2020.110425] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 10/29/2020] [Accepted: 10/31/2020] [Indexed: 06/11/2023]
Abstract
The vegetation and soil microbiome within urban green spaces is increasingly managed to help conserve biodiversity and improve human health concurrently. However, the effects of green space management on urban soil ecosystems is poorly understood, despite their importance. Across 40 urban green spaces in metropolitan Adelaide, South Australia, we show that soil bacterial communities are strongly affected by urban green space type (incl. sport fields, community gardens, parklands and revegetated areas), and that plant species richness is positively associated with soil bacterial diversity. Importantly, these microbiome trends were not affected by geographic proximity of sample sites. Our results provide early evidence that urban green space management can have predictable effects on the soil microbiome, at least from a diversity perspective, which could prove important to inform policy development if urban green spaces are to be managed to optimise population health benefits.
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Affiliation(s)
- Zdravko Baruch
- School of Biological Sciences, University of Adelaide, Adelaide, SA, 5005, Australia
| | - Craig Liddicoat
- School of Public Health, University of Adelaide, Adelaide, SA, 5005, Australia; College of Science and Engineering, Flinders University, Adelaide, SA, 5042 Australia
| | | | - Mark Laws
- School of Biological Sciences, University of Adelaide, Adelaide, SA, 5005, Australia
| | - Hamish Morelli
- School of Biological Sciences, University of Adelaide, Adelaide, SA, 5005, Australia
| | - Philip Weinstein
- School of Biological Sciences, University of Adelaide, Adelaide, SA, 5005, Australia; School of Public Health, University of Adelaide, Adelaide, SA, 5005, Australia
| | - Jennifer M Young
- College of Science and Engineering, Flinders University, Adelaide, SA, 5042 Australia
| | - Martin F Breed
- College of Science and Engineering, Flinders University, Adelaide, SA, 5042 Australia.
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16
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Du L, Guo S, Gao X, Li W, Li X, Hou F, Wang R. Divergent responses of soil fungal communities to soil erosion and deposition as evidenced in topsoil and subsoil. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 755:142616. [PMID: 33045603 DOI: 10.1016/j.scitotenv.2020.142616] [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: 07/16/2020] [Revised: 09/21/2020] [Accepted: 09/23/2020] [Indexed: 06/11/2023]
Abstract
Despite the pivotal functional roles dominating the pace of nutrient cycles in terrestrial ecosystems, soil fungal communities at erosional and depositional sites have not been comparatively investigated when assessing the ecosystem stability of eroding landscapes. In this study, soil fungal communities in topsoil (0-5 cm) and subsoil (5-10 cm) on simulated eroding slopes of three slope gradients, i.e., 5°, 10°, and 20°, and in the corresponding depositional zones were examined from 2015 to 2017 in the region of the Chinese Loess Plateau. The results showed that, compared with that in the 5° reference slopes, soil fungal richness in the topsoil and subsoil of the 10° and 20° eroding slopes was 11.8-24.9% lower. However, the richness increased by 2.3-22.7% in the subsoil of the depositional zones, yet not in the topsoil. Soil fungal community compositions in both topsoil and subsoil differed between depositional zones and reference slopes but not between eroding slopes and reference slopes. The differentiation of fungal richness and community compositions between eroding slopes and depositional zones increased with slope gradients, regardless of the topsoil and the subsoil. Saprotrophic fungi levels were 22.5-48.0% lower and pathogenic fungi were 45.2-193.3% higher in the subsoil of the depositional zones with 10° and 20° slopes than in the subsoil of the 5° reference slopes. Soil fungal network on the eroding slope was more complex than that in the depositional zone, suggesting more extensive interactions of fungal taxa and higher community stability potential on eroding slopes. The decreasing soil moisture, organic matter, and other properties on the eroding slopes, in contrast with these properties increasing in the depositional zones, were responsible for the variations in fungal richness and community composition. The divergent responses of soil fungal communities to soil erosion and deposition emphasized the complexity and variability of fungal communities during the soil erosion-deposition processes.
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Affiliation(s)
- Lanlan Du
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shaanxi 712100, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Shengli Guo
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shaanxi 712100, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China; Institute of Soil and Water Conservation, Northwest A&F University, Yangling, Shaanxi 712100, PR China
| | - Xin Gao
- Institute of Soil and Water Conservation, Northwest A&F University, Yangling, Shaanxi 712100, PR China
| | - Weijia Li
- Institute of Soil and Water Conservation, Northwest A&F University, Yangling, Shaanxi 712100, PR China
| | - Xiaogang Li
- Institute of Soil and Water Conservation, Northwest A&F University, Yangling, Shaanxi 712100, PR China
| | - Fangbin Hou
- Institute of Soil and Water Conservation, Northwest A&F University, Yangling, Shaanxi 712100, PR China
| | - Rui Wang
- Institute of Soil and Water Conservation, Northwest A&F University, Yangling, Shaanxi 712100, PR China.
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17
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Baruch Z, Liddicoat C, Laws M, Kiri Marker L, Morelli H, Yan D, Young JM, Breed MF. Characterising the soil fungal microbiome in metropolitan green spaces across a vegetation biodiversity gradient. FUNGAL ECOL 2020. [DOI: 10.1016/j.funeco.2020.100939] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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18
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Comparative Toxicity Assessment of Soil Fungi Isolated from Black Sea Coasts. BIONANOSCIENCE 2020. [DOI: 10.1007/s12668-020-00745-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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19
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Yang W, Zhang D, Cai X, Xia L, Luo Y, Cheng X, An S. Significant alterations in soil fungal communities along a chronosequence of Spartina alterniflora invasion in a Chinese Yellow Sea coastal wetland. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 693:133548. [PMID: 31369894 DOI: 10.1016/j.scitotenv.2019.07.354] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 07/22/2019] [Accepted: 07/22/2019] [Indexed: 05/24/2023]
Abstract
Plant invasion typically alters the microbial communities of soils, which affects ecosystem carbon (C) and nitrogen (N) cycles. The responses of the soil fungal communities to plant invasion along its chronosequence remain poorly understood. For this study, we investigated variations in soil fungal communities through Illumina MiSeq sequencing analyses of the fungal internal transcribed spacer (ITS) region, and quantitative polymerase chain reaction (qPCR), along a chronosequence (i.e., 9-, 13-, 20- and 23-year-old) of invasive Spartina alterniflora. We compared these variations with those of bare flat in a Chinese Yellow Sea coastal wetland. Our results highlighted that the abundance of soil fungi, the number of operational taxonomic units (OTUs), species richness, and Shannon diversity indices for soil fungal communities were highest in 9-year-old S. alterniflora soil, which gradually declined along the invasion chronosequence. The relative abundance of copiotrophic Basidiomycota revealed significant decreasing trend, while the relative abundance of oligotrophic Ascomycota gradually increased along the S. alterniflora invasion chronosequence. The relative abundance of soil saprotrophic fungi (e.g., undefined saprotrophs) was gradually reduced while symbiotic fungi (e.g., ectomycorrhizal fungi) and pathotrophic fungi (e.g., plant and animal pathogens) progressively increased along the S. alterniflora invasion chronosequence. Our results suggested that S. alterniflora invasion significantly altered soil fungal abundance and diversity, community composition, trophic modes, and functional groups along a chronosequence, via substantially reduced soil litter inputs, and gradually decreased soil pH, moisture, and soil nutrient substrates along the invasion chronosequence, from 9 to 23 years. These changes in soil fungal communities, particularly their trophic modes and functional groups along the S. alterniflora invasion chronosequence could well impact the decomposition and accumulation of soil C and N, while potentially altering ecosystem C and N sinks in a Chinese Yellow Sea coastal wetland.
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Affiliation(s)
- Wen Yang
- College of Life Sciences, Shaanxi Normal University, Xi'an 710119, PR China.
| | - Di Zhang
- College of Life Sciences, Shaanxi Normal University, Xi'an 710119, PR China
| | - Xinwen Cai
- College of Life Sciences, Shaanxi Normal University, Xi'an 710119, PR China
| | - Lu Xia
- School of Life Science and Institute of Wetland Ecology, Nanjing University, Nanjing 210023, PR China
| | - Yiqi Luo
- Center for Ecosystem Science and Society (Ecoss), Department of Biological Sciences, Northern Arizona University, Flagstaff, AZ 86011, USA
| | - Xiaoli Cheng
- Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, PR China.
| | - Shuqing An
- School of Life Science and Institute of Wetland Ecology, Nanjing University, Nanjing 210023, PR China
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20
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Soil fungal community changes in response to long-term fire cessation and N fertilization in tallgrass prairie. FUNGAL ECOL 2019. [DOI: 10.1016/j.funeco.2019.03.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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21
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The Macroalgal Holobiont in a Changing Sea. Trends Microbiol 2019; 27:635-650. [DOI: 10.1016/j.tim.2019.03.002] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Revised: 03/01/2019] [Accepted: 03/12/2019] [Indexed: 02/06/2023]
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22
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Brinkmann N, Schneider D, Sahner J, Ballauff J, Edy N, Barus H, Irawan B, Budi SW, Qaim M, Daniel R, Polle A. Intensive tropical land use massively shifts soil fungal communities. Sci Rep 2019; 9:3403. [PMID: 30833601 PMCID: PMC6399230 DOI: 10.1038/s41598-019-39829-4] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2018] [Accepted: 01/30/2019] [Indexed: 12/02/2022] Open
Abstract
Soil fungi are key players in nutrient cycles as decomposers, mutualists and pathogens, but the impact of tropical rain forest transformation into rubber or oil palm plantations on fungal community structures and their ecological functions are unknown. We hypothesized that increasing land use intensity and habitat loss due to the replacement of the hyperdiverse forest flora by nonendemic cash crops drives a drastic loss of diversity of soil fungal taxa and impairs the ecological soil functions. Unexpectedly, rain forest conversion was not associated with strong diversity loss but with massive shifts in soil fungal community composition. Fungal communities clustered according to land use system and loss of plant species. Network analysis revealed characteristic fungal genera significantly associated with different land use systems. Shifts in soil fungal community structure were particularly distinct among different trophic groups, with substantial decreases in symbiotrophic fungi and increases in saprotrophic and pathotrophic fungi in oil palm and rubber plantations in comparison with rain forests. In conclusion, conversion of rain forests and current land use systems restructure soil fungal communities towards enhanced pathogen pressure and, thus, threaten ecosystem health functions.
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Affiliation(s)
- Nicole Brinkmann
- Forest Botany and Tree Physiology, University of Goettingen, Göttingen, Germany.
| | - Dominik Schneider
- Genomic and Applied Microbiology and Göttingen Genomics Laboratory, University of Goettingen, Göttingen, Germany
| | - Josephine Sahner
- Forest Botany and Tree Physiology, University of Goettingen, Göttingen, Germany
| | - Johannes Ballauff
- Forest Botany and Tree Physiology, University of Goettingen, Göttingen, Germany
| | - Nur Edy
- Forest Botany and Tree Physiology, University of Goettingen, Göttingen, Germany
- Department of Agrotechnology, Faculty of Agriculture, Tadulako University, Palu, Indonesia
| | - Henry Barus
- Department of Agrotechnology, Faculty of Agriculture, Tadulako University, Palu, Indonesia
| | - Bambang Irawan
- Department of Forestry, University of Jambi, Jambi, Indonesia
| | - Sri Wilarso Budi
- Department of Silviculture, Faculty of Forestry, Bogor Agriculture University, Bogor, Indonesia
| | - Matin Qaim
- Department of Agricultural Economics and Rural Development, University of Goettingen, Göttingen, Germany
| | - Rolf Daniel
- Genomic and Applied Microbiology and Göttingen Genomics Laboratory, University of Goettingen, Göttingen, Germany
| | - Andrea Polle
- Forest Botany and Tree Physiology, University of Goettingen, Göttingen, Germany
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23
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Wang N, Wang A, Xie J, He M. Responses of soil fungal and archaeal communities to environmental factors in an ongoing antimony mine area. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 652:1030-1039. [PMID: 30586790 DOI: 10.1016/j.scitotenv.2018.10.300] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Revised: 10/17/2018] [Accepted: 10/22/2018] [Indexed: 06/09/2023]
Abstract
Microorganisms are vital to biogeochemical cycles. However, heavy metal contamination has been implicated in altering the microbial community. Antimony (Sb) and arsenic (As) in soils can alter soil bacterial community composition in previous studies and, therefore, may have effects on soil fungal and archaeal community composition. The aim of this study was to assess the microbial activity and fungal and archaeal community composition in long-term Sb and As contamination areas. We analyzed soil respiration rates from 247.91 μg C/kg SDW h to 1372.93 μg C/kg SDW h, which revealed a positive correlation with concentrations of antimony (r = 0.79). The microbial diversity indices (Shannon and Simpson indices) showed that the abundances of the fungal and archaeal communities were more sensitive to As. Redundancy analysis (RDA) revealed that soil properties and contamination are drivers controlling the fungal and archaeal community. All of these two microbial groups responded strongly to pH. However, the dominant drivers for fungal and archaeal community composition were very different. These differences were related to limiting conditions for different species, with fungal community composition affected strongly by pH, TC, TSb, RI and SbDGT, while archaeal community composition was mainly affected by the pH, AsDGT and TAs. Furthermore, soil respiration showed a very strong relationship with fungal community composition with r2 = 0,60, p < 0.01. These results showed that microbial responses to contamination gradients of Sb and As were heterogeneous due to the limiting environmental conditions of different microbial taxa.
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Affiliation(s)
- Ningning Wang
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Aihuan Wang
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Jun Xie
- Environmental Monitoring Station of Lenshuijiang City, Lenshuijiang 417500, Hunan, China
| | - Mengchang He
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China.
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24
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Dang P, Vu NH, Shen Z, Liu J, Zhao F, Zhu H, Yu X, Zhao Z. Changes in soil fungal communities and vegetation following afforestation withPinus tabulaeformison the Loess Plateau. Ecosphere 2018. [DOI: 10.1002/ecs2.2401] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Affiliation(s)
- Peng Dang
- Shaanxi Key Comprehensive Laboratory of Forestry; Northwest A&F University; Yangling 712100 China
- Key Laboratory of Silviculture on the Loess Plateau State Forestry Administration; Northwest A&F University; Yangling 712100 China
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau; Northwest A&F University; Yangling 712100 China
| | - Ngoc Ha Vu
- Shaanxi Key Comprehensive Laboratory of Forestry; Northwest A&F University; Yangling 712100 China
| | - Zhen Shen
- Shaanxi Key Comprehensive Laboratory of Forestry; Northwest A&F University; Yangling 712100 China
| | - Jinliang Liu
- Shaanxi Key Comprehensive Laboratory of Forestry; Northwest A&F University; Yangling 712100 China
| | - Fei Zhao
- Beijing Agricultural Science and Technology Extension Station; Beijing 100029 China
| | - Hailan Zhu
- Shaanxi Key Comprehensive Laboratory of Forestry; Northwest A&F University; Yangling 712100 China
| | - Xuan Yu
- Shaanxi Key Comprehensive Laboratory of Forestry; Northwest A&F University; Yangling 712100 China
| | - Zhong Zhao
- Shaanxi Key Comprehensive Laboratory of Forestry; Northwest A&F University; Yangling 712100 China
- Key Laboratory of Silviculture on the Loess Plateau State Forestry Administration; Northwest A&F University; Yangling 712100 China
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau; Northwest A&F University; Yangling 712100 China
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25
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Argüelles-Moyao A, Garibay-Orijel R. Ectomycorrhizal fungal communities in high mountain conifer forests in central Mexico and their potential use in the assisted migration of Abies religiosa. MYCORRHIZA 2018; 28:509-521. [PMID: 29948411 DOI: 10.1007/s00572-018-0841-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Accepted: 05/29/2018] [Indexed: 06/08/2023]
Abstract
Abies religiosa forests in central Mexico are the only overwinter refuge of the monarch butterfly and provide important ecosystem services. These forests have lost 55% of their original area and as a consequence, diversity and biotic interactions in these ecosystems are in risk. The aim of this study was to compare the soil fungal diversity and community structure in the Abies religiosa forests and surrounding Pinus montezumae, Pinus hartwegii, and coniferous mixed forest plant communities to provide data on ecology of mycorrhizal interactions for the assisted migration of A. religiosa. We sampled soil from five coniferous forests, extracted total soil DNA, and sequenced the ITS2 region by Illumina MiSeq. The soil fungi community was integrated by 1746 taxa with a species turnover ranging from 0.280 to 0.461 between sampling sites. In the whole community, the more abundant and frequent species were Russula sp. (aff. olivobrunnea), Mortierella sp.1, and Piloderma sp. (aff. olivacearum). The ectomycorrhizal fungi were the more frequent and abundant functional group. A total of 298 species (84 ectomycorrhizal) was shared in the five conifer forests; these widely distributed species were dominated by Russulaceae and Clavulinaceae. The fungal community composition was significantly influenced by altitude and the lowest species turnover happened between the two A. religiosa forests even though they have different soil types. As Pinus montezumae forests have a higher altitudinal distribution adjacent to A. religiosa and share the largest number of ectomycorrhizal fungi with it, we suggest these forests as a potential habitat for new A. religiosa populations.
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Affiliation(s)
- Andrés Argüelles-Moyao
- Laboratorio de Sistemática, Ecología y Aprovechamiento de Hongos Ectomicorrízicos, Departamento de Botánica, Instituto de Biología, Universidad Nacional Autónoma de México, Circuito Exterior s/n, Ciudad Universitaria. Del. Coyoacán, C.P. 04510, Mexico City, CDMX, Mexico
- Posgrado en Ciencias Biológicas, Edificio B, 1° Piso, Unidad de Posgrado, Circuito de Posgrados, Universidad Nacional Autónoma de México, Ciudad Universitaria, Del. Coyoacán, C.P. 04510, Mexico City, CDMX, Mexico
| | - Roberto Garibay-Orijel
- Laboratorio de Sistemática, Ecología y Aprovechamiento de Hongos Ectomicorrízicos, Departamento de Botánica, Instituto de Biología, Universidad Nacional Autónoma de México, Circuito Exterior s/n, Ciudad Universitaria. Del. Coyoacán, C.P. 04510, Mexico City, CDMX, Mexico.
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