Soil Fungal Community Composition, Not Assembly Process, Was Altered by Nitrogen Addition and Precipitation Changes at an Alpine Steppe
Global climate change and nitrogen deposition have been having broad impacts on microorganisms. On the Qinghai-Tibetan Plateau (QTP), the responses of soil microbial community assemblage and diversity to nitrogen deposition and changes in precipitation are poorly understood, especially in the alpine...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Frontiers Media S.A.
2020-10-01
|
| Series: | Frontiers in Microbiology |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/article/10.3389/fmicb.2020.579072/full |
| _version_ | 1818526881588183040 |
|---|---|
| author | Yuanming Xiao Yuanming Xiao Changbin Li Changbin Li Yang Yang Yang Yang Yunfeng Peng Yuanhe Yang Guoying Zhou Guoying Zhou Guoying Zhou |
| author_facet | Yuanming Xiao Yuanming Xiao Changbin Li Changbin Li Yang Yang Yang Yang Yunfeng Peng Yuanhe Yang Guoying Zhou Guoying Zhou Guoying Zhou |
| author_sort | Yuanming Xiao |
| collection | DOAJ |
| description | Global climate change and nitrogen deposition have been having broad impacts on microorganisms. On the Qinghai-Tibetan Plateau (QTP), the responses of soil microbial community assemblage and diversity to nitrogen deposition and changes in precipitation are poorly understood, especially in the alpine steppe. In this study, we conducted a field manipulative experiment of nitrogen deposition and precipitation amount in an alpine steppe on the northeastern QTP and investigated the responses of community composition, diversity, and community assemblage of soil fungi. Soil fungal community compositions were significantly altered under nitrogen addition, precipitation change, and their interaction, and positively related with soil moisture, soil pH, and plant species richness. However, they were negatively related to soil mineralizable N and soil available P content. Operational taxonomic units (OTU) richness and Chao 1 index decreased under nitrogen addition combined with precipitation reduction treatment, whereas the Shannon–Wiener index declined only under precipitation increment treatment. Convergent fungal community assembly processes were not acutely altered by both nitrogen addition and precipitation changes, indicating that environmental filtering was a dominant ecological process controlling fungal community assemblage. By elucidating the above questions, the study enhanced our ability to predict the responses of soil fungal communities to nitrogen deposition and precipitation changes at alpine steppes on the QTP in the future. |
| first_indexed | 2024-12-11T06:28:59Z |
| format | Article |
| id | doaj.art-91306f01f611459abdfab0fbb54de529 |
| institution | Directory Open Access Journal |
| issn | 1664-302X |
| language | English |
| last_indexed | 2024-12-11T06:28:59Z |
| publishDate | 2020-10-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Microbiology |
| spelling | doaj.art-91306f01f611459abdfab0fbb54de5292022-12-22T01:17:35ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2020-10-011110.3389/fmicb.2020.579072579072Soil Fungal Community Composition, Not Assembly Process, Was Altered by Nitrogen Addition and Precipitation Changes at an Alpine SteppeYuanming Xiao0Yuanming Xiao1Changbin Li2Changbin Li3Yang Yang4Yang Yang5Yunfeng Peng6Yuanhe Yang7Guoying Zhou8Guoying Zhou9Guoying Zhou10Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, ChinaCollege of Life Sciences, University of Chinese Academy of Sciences, Beijing, ChinaNorthwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, ChinaCollege of Life Sciences, University of Chinese Academy of Sciences, Beijing, ChinaNorthwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, ChinaCollege of Life Sciences, University of Chinese Academy of Sciences, Beijing, ChinaState Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, ChinaState Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, ChinaNorthwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, ChinaKey Laboratory of Tibetan Medicine Research, Chinese Academy of Sciences, Xining, ChinaQinghai Key Laboratory of Qinghai-Tibetan Plateau Biological Resources, Xining, ChinaGlobal climate change and nitrogen deposition have been having broad impacts on microorganisms. On the Qinghai-Tibetan Plateau (QTP), the responses of soil microbial community assemblage and diversity to nitrogen deposition and changes in precipitation are poorly understood, especially in the alpine steppe. In this study, we conducted a field manipulative experiment of nitrogen deposition and precipitation amount in an alpine steppe on the northeastern QTP and investigated the responses of community composition, diversity, and community assemblage of soil fungi. Soil fungal community compositions were significantly altered under nitrogen addition, precipitation change, and their interaction, and positively related with soil moisture, soil pH, and plant species richness. However, they were negatively related to soil mineralizable N and soil available P content. Operational taxonomic units (OTU) richness and Chao 1 index decreased under nitrogen addition combined with precipitation reduction treatment, whereas the Shannon–Wiener index declined only under precipitation increment treatment. Convergent fungal community assembly processes were not acutely altered by both nitrogen addition and precipitation changes, indicating that environmental filtering was a dominant ecological process controlling fungal community assemblage. By elucidating the above questions, the study enhanced our ability to predict the responses of soil fungal communities to nitrogen deposition and precipitation changes at alpine steppes on the QTP in the future.https://www.frontiersin.org/article/10.3389/fmicb.2020.579072/fullsoil fungiphylogenetic community structurecommunity assemblyclimate changestructural equation model |
| spellingShingle | Yuanming Xiao Yuanming Xiao Changbin Li Changbin Li Yang Yang Yang Yang Yunfeng Peng Yuanhe Yang Guoying Zhou Guoying Zhou Guoying Zhou Soil Fungal Community Composition, Not Assembly Process, Was Altered by Nitrogen Addition and Precipitation Changes at an Alpine Steppe Frontiers in Microbiology soil fungi phylogenetic community structure community assembly climate change structural equation model |
| title | Soil Fungal Community Composition, Not Assembly Process, Was Altered by Nitrogen Addition and Precipitation Changes at an Alpine Steppe |
| title_full | Soil Fungal Community Composition, Not Assembly Process, Was Altered by Nitrogen Addition and Precipitation Changes at an Alpine Steppe |
| title_fullStr | Soil Fungal Community Composition, Not Assembly Process, Was Altered by Nitrogen Addition and Precipitation Changes at an Alpine Steppe |
| title_full_unstemmed | Soil Fungal Community Composition, Not Assembly Process, Was Altered by Nitrogen Addition and Precipitation Changes at an Alpine Steppe |
| title_short | Soil Fungal Community Composition, Not Assembly Process, Was Altered by Nitrogen Addition and Precipitation Changes at an Alpine Steppe |
| title_sort | soil fungal community composition not assembly process was altered by nitrogen addition and precipitation changes at an alpine steppe |
| topic | soil fungi phylogenetic community structure community assembly climate change structural equation model |
| url | https://www.frontiersin.org/article/10.3389/fmicb.2020.579072/full |
| work_keys_str_mv | AT yuanmingxiao soilfungalcommunitycompositionnotassemblyprocesswasalteredbynitrogenadditionandprecipitationchangesatanalpinesteppe AT yuanmingxiao soilfungalcommunitycompositionnotassemblyprocesswasalteredbynitrogenadditionandprecipitationchangesatanalpinesteppe AT changbinli soilfungalcommunitycompositionnotassemblyprocesswasalteredbynitrogenadditionandprecipitationchangesatanalpinesteppe AT changbinli soilfungalcommunitycompositionnotassemblyprocesswasalteredbynitrogenadditionandprecipitationchangesatanalpinesteppe AT yangyang soilfungalcommunitycompositionnotassemblyprocesswasalteredbynitrogenadditionandprecipitationchangesatanalpinesteppe AT yangyang soilfungalcommunitycompositionnotassemblyprocesswasalteredbynitrogenadditionandprecipitationchangesatanalpinesteppe AT yunfengpeng soilfungalcommunitycompositionnotassemblyprocesswasalteredbynitrogenadditionandprecipitationchangesatanalpinesteppe AT yuanheyang soilfungalcommunitycompositionnotassemblyprocesswasalteredbynitrogenadditionandprecipitationchangesatanalpinesteppe AT guoyingzhou soilfungalcommunitycompositionnotassemblyprocesswasalteredbynitrogenadditionandprecipitationchangesatanalpinesteppe AT guoyingzhou soilfungalcommunitycompositionnotassemblyprocesswasalteredbynitrogenadditionandprecipitationchangesatanalpinesteppe AT guoyingzhou soilfungalcommunitycompositionnotassemblyprocesswasalteredbynitrogenadditionandprecipitationchangesatanalpinesteppe |